Prata med grundaren
Projektfördel #2

Skicka e‑post direktFrån smarta kontrakt

Automatisera användaraviseringar med smart kontraktsintegration. Skicka transaktionsbekräftelser, belöningsvarningar och styrningsaviseringar utan någon backendinfrastruktur.

📜

Noll backend, maximal automation

5 000
Gasavgift
<3s
Leveranstid
sex
blockkedjor
∞
Skala
YourContract.sol
function claimRewards() external {
    uint256 rewards = calculateRewards(msg.sender);
    _transfer(rewardToken, msg.sender, rewards);

    // Approve USDC for email fee
    usdc.approve(address(mailer), mailer.getFee());

    // Send email notification using prepared template
    mailer.sendPrepared(
        msg.sender,
        "reward-notification",  // template ID
        false,                  // standard mode: 10% fee only
        true                    // resolve sender name
    );
}

Tre kraftfulla integrationsformer

Automatisera kritiska användarkommunikationer direkt från dina smarta kontrakt

Transaktionsaviseringar

RealtidsaviseringarFörbättrad användarupplevelseMinskade supportärenden

Automatiskt meddela användare om lyckade transaktioner, misslyckade försök och väntande bekräftelser.

Vanliga användningsfall:

  • DeFi swap confirmations with slippage details
  • NFT purchase receipts with marketplace links
  • Notiser för inlämnade staking-belöningar
  • Misslyckade transaktionsvarningar med gasuppskattning
  • Uppdateringar om slutförande av tvärkedjebrygga
Implementeringsexempel
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IMailer {
    function sendPrepared(
        address to,
        string calldata mailId,
        bool revenueShareToReceiver,
        bool resolveSenderToName
    ) external;
}

// Send email on successful swap
event SwapCompleted(address user, uint256 amountIn, uint256 amountOut);

function swap(uint256 amountIn) external {
    // ... swap logic ...

    emit SwapCompleted(msg.sender, amountIn, amountOut);

    // Approve USDC for email fee (adjust based on fee structure)
    usdc.approve(address(mailer), 10000); // 0.01 USDC for standard mode

    // Trigger email notification using template
    IMailer(mailerContract).sendPrepared(
        msg.sender,
        "swap-confirmation",  // template ID
        false,                // standard mode: 10% fee only
        true                  // resolve sender name
    );
}

DeFi Protocol Events

Förhindra likvidationerÖka protokollets TVLBättre användarbehållning

Håll användarna informerade om avkastningsodlingens belöningar, likvidationsrisker och protokolländringar.

Vanliga användningsfall:

  • Utdelningar av belöningar för yield farming
  • Varningar om likvidation vid 110 % säkerhetsförhållande
  • Ny pool lanseras med bonus‑APY.
  • Påminnelser om röstning på styrningsförslag
  • Protokollavgiftsändringar och uppdateringar
Implementeringsexempel
<!doctype html>
<html lang="en">
  <head>
    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
injectIntoGlobalHook(window);
window.$RefreshReg$ = () => {};
window.$RefreshSig$ = () => (type) => type;</script>

    <script type="module" src="/@vite/client"></script>

    <meta charset="UTF-8" />
    <!-- Safari JSON-LD error handler - suppress non-critical structured data errors -->
    <script>
      window.onerror = function (m) {
        if (m && m.indexOf && m.indexOf('@context') !== -1) return true;
        return false;
      };
    </script>

    <!-- Favicon and Icons -->
    <link rel="icon" type="image/png" href="/favicon.ico" />
    <link rel="apple-touch-icon" href="/favicon-192.png" />
    <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16.png" />
    <link rel="icon" type="image/png" sizes="32x32" href="/favicon.ico" />
    <link rel="icon" type="image/png" sizes="192x192" href="/favicon-192.png" />
    <link rel="icon" type="image/png" sizes="512x512" href="/favicon-512.png" />

    <!-- Viewport and Basic Meta -->
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="theme-color" content="#3b82f6" />

    <!-- Security Headers -->
    <meta http-equiv="X-Content-Type-Options" content="nosniff" />
    <meta http-equiv="X-XSS-Protection" content="1; mode=block" />
    <meta http-equiv="Referrer-Policy" content="strict-origin-when-cross-origin" />
    <meta
      http-equiv="Permissions-Policy"
      content="camera=(), microphone=(), geolocation=(), interest-cohort=()"
    />

    <!-- Primary Meta Tags -->
    <title>Signic - Web3 Email Platform | Wallet-Based Email</title>
    <meta name="title" content="Signic - Web3 Email Platform | Wallet-Based Email" />
    <meta
      name="description"
      content="Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS (.eth) and SNS (.sol) domains as email, with multi-chain support for Ethereum, Solana, and Polygon."
    />
    <meta
      name="keywords"
      content="Web3 email, blockchain email, wallet email, ENS email, SNS email, decentralized email, crypto email, passwordless email, ethereum email, solana email, DAO governance email"
    />
    <meta name="author" content="Sudobility Inc" />
    <meta
      name="robots"
      content="index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1"
    />

    <!-- Canonical URL - dynamically set by SEOHead.tsx based on current route -->

    <!-- Open Graph / Facebook -->
    <meta property="og:type" content="website" />
    <meta
      property="og:title"
      content="Signic - Web3 Email Platform | Wallet-Based Email"
    />
    <meta
      property="og:description"
      content="Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS and SNS domains as email."
    />
    <meta property="og:image" content="https://signic.email/logo.png" />
    <meta property="og:site_name" content="Signic" />
    <meta property="og:locale" content="en_US" />

    <!-- Twitter -->
    <meta property="twitter:card" content="summary_large_image" />
    <meta property="twitter:url" content="https://signic.email" />
    <meta
      property="twitter:title"
      content="Signic - Web3 Email Platform | Wallet-Based Email"
    />
    <meta
      property="twitter:description"
      content="Free Web3 email platform with wallet-based authentication. Use ENS and SNS domains as email, with DAO governance tools."
    />
    <meta property="twitter:image" content="https://signic.email/logo.png" />
    <meta property="twitter:creator" content="@signicemail" />
    <meta property="twitter:site" content="@signicemail" />

    <!-- Application Meta -->
    <meta name="application-name" content="Signic" />
    <meta name="msapplication-TileColor" content="#3b82f6" />
    <meta name="referrer" content="origin-when-cross-origin" />
    <meta name="format-detection" content="telephone=no" />
    <meta name="mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-status-bar-style" content="default" />
    <meta name="apple-mobile-web-app-title" content="Signic" />
    <meta name="copyright" content="Sudobility Inc. All rights reserved." />

    <!-- PWA -->
    <link rel="manifest" href="/manifest.json" />

    <!-- DNS Prefetch and Preconnect -->
    <link rel="dns-prefetch" href="//fonts.googleapis.com" />
    <link rel="dns-prefetch" href="//fonts.gstatic.com" />
    <link rel="dns-prefetch" href="//api.signic.email" />
    <link rel="dns-prefetch" href="//signic.email" />
    <link rel="dns-prefetch" href="//walletconnect.com" />
    <link rel="dns-prefetch" href="//phantom.app" />
    <link rel="dns-prefetch" href="//metamask.io" />

    <!-- Preconnect for critical third-party domains -->
    <link rel="preconnect" href="https://api.signic.email" crossorigin />
    <link rel="preconnect" href="https://fonts.googleapis.com" crossorigin />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />

    <!-- Preconnect to Firebase (for analytics and performance) -->
    <link rel="preconnect" href="https://firebaseinstallations.googleapis.com" crossorigin />
    <link rel="preconnect" href="https://www.google-analytics.com" crossorigin />

    <!-- Preconnect to RPC providers (only establish connection, don't load) -->
    <link rel="preconnect" href="https://eth-mainnet.g.alchemy.com" crossorigin />
    <link rel="preconnect" href="https://solana-mainnet.g.alchemy.com" crossorigin />

    <!-- Above-the-fold CSS inline for fastest render -->
    <style>
      /* Critical CSS for initial paint - Optimized for LCP */
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      body {
        margin: 0;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        background: #fff;
        color: #111827;
        line-height: 1.5;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
      }

      /* Critical above-the-fold hero styles for immediate paint */
      .hero-gradient {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        min-height: 80vh;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
      }

      .hero-content {
        max-width: 1200px;
        padding: 2rem;
        text-align: center;
      }

      h1 {
        font-size: clamp(2rem, 5vw, 3.5rem);
        font-weight: 700;
        line-height: 1.2;
        margin-bottom: 1rem;
      }

      .loading {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 100vh;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      }

      .spinner {
        width: 40px;
        height: 40px;
        border: 4px solid rgba(255, 255, 255, 0.3);
        border-top: 4px solid white;
        border-radius: 50%;
        animation: spin 1s linear infinite;
      }

      @keyframes spin {
        0% {
          transform: rotate(0deg);
        }
        100% {
          transform: rotate(360deg);
        }
      }

      #root {
        min-height: 100vh;
      }

      /* Prevent layout shift */
      img {
        max-width: 100%;
        height: auto;
        display: block;
      }
    </style>

    <!-- Web3 provider optimization - DNS prefetch only (loaded lazily) -->
    <link rel="dns-prefetch" href="//ethereum-api.xyz" />
    <link rel="dns-prefetch" href="//polygon-rpc.com" />
    <link rel="dns-prefetch" href="//solana-api.mainnet-beta.solana.com" />
    <link rel="dns-prefetch" href="//rpc.ankr.com" />

    <!-- Wallet provider DNS prefetch - connections established on demand -->
    <link rel="dns-prefetch" href="//walletconnect.org" />
    <link rel="dns-prefetch" href="//safe-transaction.mainnet.gnosis.io" />

    <!-- CDN optimizations -->
    <link rel="dns-prefetch" href="//cdn.jsdelivr.net" />
    <link rel="dns-prefetch" href="//unpkg.com" />

    <!-- Service worker registration hint -->
    <link rel="prefetch" href="/sw.js" />

    <!-- Font loading - deferred for LCP -->
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <link
      href="https://fonts.googleapis.com/css2?family=Dancing+Script:wght@400;500;600;700&display=swap"
      rel="stylesheet"
      media="print"
      onload="this.media = 'all'"
    />
    <noscript>
      <link
        href="https://fonts.googleapis.com/css2?family=Dancing+Script:wght@400;500;600;700&display=swap"
        rel="stylesheet"
      />
    </noscript>

    <!-- Structured Data -->
    <script type="application/ld+json">
      [
        {
          "@context": "https://schema.org",
          "@type": "WebApplication",
          "name": "Signic",
          "alternateName": ["signic.email", "Web3 Email Platform"],
          "description": "Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS (.eth) and SNS (.sol) domains as email with multi-chain support.",
          "url": "https://signic.email",
          "applicationCategory": ["BusinessApplication", "CommunicationApplication"],
          "operatingSystem": "Web Browser",
          "browserRequirements": "HTML5, JavaScript enabled, Web3 wallet (MetaMask, Phantom, WalletConnect)",
          "softwareRequirements": "Web3 wallet extension or mobile app",
          "datePublished": "2024-01-01",
          "dateModified": "2026-07-11",
          "isAccessibleForFree": true,
          "featureList": [
            "Wallet-based authentication - no passwords required",
            "ENS domain email support (.eth domains)",
            "Solana Name Service email support (.sol domains)",
            "Multi-chain support (Ethereum, Solana, Polygon, Arbitrum, Optimism)",
            "Smart contract email notifications",
            "DAO governance email tools",
            "Email delegation for teams and DAOs",
            "Web2/Web3 bridge communication"
          ],
          "offers": [
            {
              "@type": "Offer",
              "name": "Free Web3 Email",
              "price": "0",
              "priceCurrency": "USD",
              "description": "Free wallet-based email address"
            },
            {
              "@type": "Offer",
              "name": "Premium ENS/SNS Email",
              "price": "2",
              "priceCurrency": "USD",
              "description": "Use your ENS or SNS domain as email address"
            }
          ],
          "author": {
            "@type": "Organization",
            "name": "Signic",
            "url": "https://signic.email"
          },
          "installUrl": "https://signic.email/connect",
          "screenshot": "https://signic.email/logo.png"
        },
        {
          "@context": "https://schema.org",
          "@type": "Organization",
          "@id": "https://signic.email/#organization",
          "name": "Signic",
          "url": "https://signic.email",
          "logo": "https://signic.email/logo.png",
          "description": "Web3 email platform connecting blockchain wallets to email addresses with multi-chain support.",
          "foundingDate": "2024-01-01",
          "contactPoint": {
            "@type": "ContactPoint",
            "contactType": "customer service",
            "email": "[email protected]",
            "availableLanguage": "English"
          },
          "sameAs": ["https://twitter.com/signicemail", "", "https://discord.gg/upkNXbksVF"]
        },
        {
          "@context": "https://schema.org",
          "@type": "WebSite",
          "@id": "https://signic.email/#website",
          "name": "Signic",
          "url": "https://signic.email",
          "potentialAction": {
            "@type": "SearchAction",
            "target": "https://signic.email/search?q={search_term_string}",
            "query-input": "required name=search_term_string"
          },
          "publisher": {
            "@id": "https://signic.email/#organization"
          }
        },
        {
          "@context": "https://schema.org",
          "@type": "HowTo",
          "name": "How to Set Up Web3 Email with Crypto Wallet",
          "description": "Step-by-step guide to connect your crypto wallet and start using Web3 email with ENS domains",
          "image": "https://signic.email/logo.png",
          "totalTime": "PT5M",
          "estimatedCost": {
            "@type": "MonetaryAmount",
            "currency": "USD",
            "value": "0"
          },
          "supply": [
            {
              "@type": "HowToSupply",
              "name": "Web3 Wallet (MetaMask, Phantom, etc.)"
            },
            {
              "@type": "HowToSupply",
              "name": "ENS domain (optional but recommended)"
            }
          ],
          "tool": [
            {
              "@type": "HowToTool",
              "name": "Web browser with wallet extension"
            }
          ],
          "step": [
            {
              "@type": "HowToStep",
              "name": "Connect Your Wallet",
              "text": "Visit signic.email and click 'Connect Wallet'. Select your preferred wallet (MetaMask, Phantom, Coinbase, etc.) and approve the connection."
            },
            {
              "@type": "HowToStep",
              "name": "Verify Your Identity",
              "text": "Sign a verification message with your wallet to prove ownership. This creates your Web3 email account linked to your wallet address."
            },
            {
              "@type": "HowToStep",
              "name": "Configure Email Address",
              "text": "If you own an ENS domain (.eth) or SNS domain (.sol), it automatically becomes your email address. Otherwise, use your wallet address or create a custom alias."
            },
            {
              "@type": "HowToStep",
              "name": "Start Using Web3 Email",
              "text": "Access your inbox, compose messages, and enjoy passwordless email. Set up smart contract notifications and DAO governance alerts as needed."
            }
          ]
        }
      ]
    </script>
  </head>
  <body>
    <div id="root"></div>
    <script type="module" src="/src/main.tsx?t=1783798028296"></script>
  </body>
</html>

Governance & DAO

Högre valdeltagandeTransparens i styrningAktiv gemenskap

Automate governance communications and voting notifications for your DAO members.

Vanliga användningsfall:

  • Nya förslagsskapande meddelanden
  • Påminnelser om röstningsdeadline (24 timmar, 1 timme innan)
  • Förslagets genomförandebekräftelser
  • Notiser om ändring av delegation
  • Uppdateringar av Treasury‑milstolpar
Implementeringsexempel
<!doctype html>
<html lang="en">
  <head>
    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
injectIntoGlobalHook(window);
window.$RefreshReg$ = () => {};
window.$RefreshSig$ = () => (type) => type;</script>

    <script type="module" src="/@vite/client"></script>

    <meta charset="UTF-8" />
    <!-- Safari JSON-LD error handler - suppress non-critical structured data errors -->
    <script>
      window.onerror = function (m) {
        if (m && m.indexOf && m.indexOf('@context') !== -1) return true;
        return false;
      };
    </script>

    <!-- Favicon and Icons -->
    <link rel="icon" type="image/png" href="/favicon.ico" />
    <link rel="apple-touch-icon" href="/favicon-192.png" />
    <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16.png" />
    <link rel="icon" type="image/png" sizes="32x32" href="/favicon.ico" />
    <link rel="icon" type="image/png" sizes="192x192" href="/favicon-192.png" />
    <link rel="icon" type="image/png" sizes="512x512" href="/favicon-512.png" />

    <!-- Viewport and Basic Meta -->
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="theme-color" content="#3b82f6" />

    <!-- Security Headers -->
    <meta http-equiv="X-Content-Type-Options" content="nosniff" />
    <meta http-equiv="X-XSS-Protection" content="1; mode=block" />
    <meta http-equiv="Referrer-Policy" content="strict-origin-when-cross-origin" />
    <meta
      http-equiv="Permissions-Policy"
      content="camera=(), microphone=(), geolocation=(), interest-cohort=()"
    />

    <!-- Primary Meta Tags -->
    <title>Signic - Web3 Email Platform | Wallet-Based Email</title>
    <meta name="title" content="Signic - Web3 Email Platform | Wallet-Based Email" />
    <meta
      name="description"
      content="Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS (.eth) and SNS (.sol) domains as email, with multi-chain support for Ethereum, Solana, and Polygon."
    />
    <meta
      name="keywords"
      content="Web3 email, blockchain email, wallet email, ENS email, SNS email, decentralized email, crypto email, passwordless email, ethereum email, solana email, DAO governance email"
    />
    <meta name="author" content="Sudobility Inc" />
    <meta
      name="robots"
      content="index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1"
    />

    <!-- Canonical URL - dynamically set by SEOHead.tsx based on current route -->

    <!-- Open Graph / Facebook -->
    <meta property="og:type" content="website" />
    <meta
      property="og:title"
      content="Signic - Web3 Email Platform | Wallet-Based Email"
    />
    <meta
      property="og:description"
      content="Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS and SNS domains as email."
    />
    <meta property="og:image" content="https://signic.email/logo.png" />
    <meta property="og:site_name" content="Signic" />
    <meta property="og:locale" content="en_US" />

    <!-- Twitter -->
    <meta property="twitter:card" content="summary_large_image" />
    <meta property="twitter:url" content="https://signic.email" />
    <meta
      property="twitter:title"
      content="Signic - Web3 Email Platform | Wallet-Based Email"
    />
    <meta
      property="twitter:description"
      content="Free Web3 email platform with wallet-based authentication. Use ENS and SNS domains as email, with DAO governance tools."
    />
    <meta property="twitter:image" content="https://signic.email/logo.png" />
    <meta property="twitter:creator" content="@signicemail" />
    <meta property="twitter:site" content="@signicemail" />

    <!-- Application Meta -->
    <meta name="application-name" content="Signic" />
    <meta name="msapplication-TileColor" content="#3b82f6" />
    <meta name="referrer" content="origin-when-cross-origin" />
    <meta name="format-detection" content="telephone=no" />
    <meta name="mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-status-bar-style" content="default" />
    <meta name="apple-mobile-web-app-title" content="Signic" />
    <meta name="copyright" content="Sudobility Inc. All rights reserved." />

    <!-- PWA -->
    <link rel="manifest" href="/manifest.json" />

    <!-- DNS Prefetch and Preconnect -->
    <link rel="dns-prefetch" href="//fonts.googleapis.com" />
    <link rel="dns-prefetch" href="//fonts.gstatic.com" />
    <link rel="dns-prefetch" href="//api.signic.email" />
    <link rel="dns-prefetch" href="//signic.email" />
    <link rel="dns-prefetch" href="//walletconnect.com" />
    <link rel="dns-prefetch" href="//phantom.app" />
    <link rel="dns-prefetch" href="//metamask.io" />

    <!-- Preconnect for critical third-party domains -->
    <link rel="preconnect" href="https://api.signic.email" crossorigin />
    <link rel="preconnect" href="https://fonts.googleapis.com" crossorigin />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />

    <!-- Preconnect to Firebase (for analytics and performance) -->
    <link rel="preconnect" href="https://firebaseinstallations.googleapis.com" crossorigin />
    <link rel="preconnect" href="https://www.google-analytics.com" crossorigin />

    <!-- Preconnect to RPC providers (only establish connection, don't load) -->
    <link rel="preconnect" href="https://eth-mainnet.g.alchemy.com" crossorigin />
    <link rel="preconnect" href="https://solana-mainnet.g.alchemy.com" crossorigin />

    <!-- Above-the-fold CSS inline for fastest render -->
    <style>
      /* Critical CSS for initial paint - Optimized for LCP */
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      body {
        margin: 0;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        background: #fff;
        color: #111827;
        line-height: 1.5;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
      }

      /* Critical above-the-fold hero styles for immediate paint */
      .hero-gradient {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        min-height: 80vh;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
      }

      .hero-content {
        max-width: 1200px;
        padding: 2rem;
        text-align: center;
      }

      h1 {
        font-size: clamp(2rem, 5vw, 3.5rem);
        font-weight: 700;
        line-height: 1.2;
        margin-bottom: 1rem;
      }

      .loading {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 100vh;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      }

      .spinner {
        width: 40px;
        height: 40px;
        border: 4px solid rgba(255, 255, 255, 0.3);
        border-top: 4px solid white;
        border-radius: 50%;
        animation: spin 1s linear infinite;
      }

      @keyframes spin {
        0% {
          transform: rotate(0deg);
        }
        100% {
          transform: rotate(360deg);
        }
      }

      #root {
        min-height: 100vh;
      }

      /* Prevent layout shift */
      img {
        max-width: 100%;
        height: auto;
        display: block;
      }
    </style>

    <!-- Web3 provider optimization - DNS prefetch only (loaded lazily) -->
    <link rel="dns-prefetch" href="//ethereum-api.xyz" />
    <link rel="dns-prefetch" href="//polygon-rpc.com" />
    <link rel="dns-prefetch" href="//solana-api.mainnet-beta.solana.com" />
    <link rel="dns-prefetch" href="//rpc.ankr.com" />

    <!-- Wallet provider DNS prefetch - connections established on demand -->
    <link rel="dns-prefetch" href="//walletconnect.org" />
    <link rel="dns-prefetch" href="//safe-transaction.mainnet.gnosis.io" />

    <!-- CDN optimizations -->
    <link rel="dns-prefetch" href="//cdn.jsdelivr.net" />
    <link rel="dns-prefetch" href="//unpkg.com" />

    <!-- Service worker registration hint -->
    <link rel="prefetch" href="/sw.js" />

    <!-- Font loading - deferred for LCP -->
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <link
      href="https://fonts.googleapis.com/css2?family=Dancing+Script:wght@400;500;600;700&display=swap"
      rel="stylesheet"
      media="print"
      onload="this.media = 'all'"
    />
    <noscript>
      <link
        href="https://fonts.googleapis.com/css2?family=Dancing+Script:wght@400;500;600;700&display=swap"
        rel="stylesheet"
      />
    </noscript>

    <!-- Structured Data -->
    <script type="application/ld+json">
      [
        {
          "@context": "https://schema.org",
          "@type": "WebApplication",
          "name": "Signic",
          "alternateName": ["signic.email", "Web3 Email Platform"],
          "description": "Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS (.eth) and SNS (.sol) domains as email with multi-chain support.",
          "url": "https://signic.email",
          "applicationCategory": ["BusinessApplication", "CommunicationApplication"],
          "operatingSystem": "Web Browser",
          "browserRequirements": "HTML5, JavaScript enabled, Web3 wallet (MetaMask, Phantom, WalletConnect)",
          "softwareRequirements": "Web3 wallet extension or mobile app",
          "datePublished": "2024-01-01",
          "dateModified": "2026-07-11",
          "isAccessibleForFree": true,
          "featureList": [
            "Wallet-based authentication - no passwords required",
            "ENS domain email support (.eth domains)",
            "Solana Name Service email support (.sol domains)",
            "Multi-chain support (Ethereum, Solana, Polygon, Arbitrum, Optimism)",
            "Smart contract email notifications",
            "DAO governance email tools",
            "Email delegation for teams and DAOs",
            "Web2/Web3 bridge communication"
          ],
          "offers": [
            {
              "@type": "Offer",
              "name": "Free Web3 Email",
              "price": "0",
              "priceCurrency": "USD",
              "description": "Free wallet-based email address"
            },
            {
              "@type": "Offer",
              "name": "Premium ENS/SNS Email",
              "price": "2",
              "priceCurrency": "USD",
              "description": "Use your ENS or SNS domain as email address"
            }
          ],
          "author": {
            "@type": "Organization",
            "name": "Signic",
            "url": "https://signic.email"
          },
          "installUrl": "https://signic.email/connect",
          "screenshot": "https://signic.email/logo.png"
        },
        {
          "@context": "https://schema.org",
          "@type": "Organization",
          "@id": "https://signic.email/#organization",
          "name": "Signic",
          "url": "https://signic.email",
          "logo": "https://signic.email/logo.png",
          "description": "Web3 email platform connecting blockchain wallets to email addresses with multi-chain support.",
          "foundingDate": "2024-01-01",
          "contactPoint": {
            "@type": "ContactPoint",
            "contactType": "customer service",
            "email": "[email protected]",
            "availableLanguage": "English"
          },
          "sameAs": ["https://twitter.com/signicemail", "", "https://discord.gg/upkNXbksVF"]
        },
        {
          "@context": "https://schema.org",
          "@type": "WebSite",
          "@id": "https://signic.email/#website",
          "name": "Signic",
          "url": "https://signic.email",
          "potentialAction": {
            "@type": "SearchAction",
            "target": "https://signic.email/search?q={search_term_string}",
            "query-input": "required name=search_term_string"
          },
          "publisher": {
            "@id": "https://signic.email/#organization"
          }
        },
        {
          "@context": "https://schema.org",
          "@type": "HowTo",
          "name": "How to Set Up Web3 Email with Crypto Wallet",
          "description": "Step-by-step guide to connect your crypto wallet and start using Web3 email with ENS domains",
          "image": "https://signic.email/logo.png",
          "totalTime": "PT5M",
          "estimatedCost": {
            "@type": "MonetaryAmount",
            "currency": "USD",
            "value": "0"
          },
          "supply": [
            {
              "@type": "HowToSupply",
              "name": "Web3 Wallet (MetaMask, Phantom, etc.)"
            },
            {
              "@type": "HowToSupply",
              "name": "ENS domain (optional but recommended)"
            }
          ],
          "tool": [
            {
              "@type": "HowToTool",
              "name": "Web browser with wallet extension"
            }
          ],
          "step": [
            {
              "@type": "HowToStep",
              "name": "Connect Your Wallet",
              "text": "Visit signic.email and click 'Connect Wallet'. Select your preferred wallet (MetaMask, Phantom, Coinbase, etc.) and approve the connection."
            },
            {
              "@type": "HowToStep",
              "name": "Verify Your Identity",
              "text": "Sign a verification message with your wallet to prove ownership. This creates your Web3 email account linked to your wallet address."
            },
            {
              "@type": "HowToStep",
              "name": "Configure Email Address",
              "text": "If you own an ENS domain (.eth) or SNS domain (.sol), it automatically becomes your email address. Otherwise, use your wallet address or create a custom alias."
            },
            {
              "@type": "HowToStep",
              "name": "Start Using Web3 Email",
              "text": "Access your inbox, compose messages, and enjoy passwordless email. Set up smart contract notifications and DAO governance alerts as needed."
            }
          ]
        }
      ]
    </script>
  </head>
  <body>
    <div id="root"></div>
    <script type="module" src="/src/main.tsx?t=1783798028296"></script>
  </body>
</html>

Byggd för produktion

Funktioner av företagsnivå som skalar med ditt protokoll

Gasoptimerad

Minimalt bränslekostnad – vanligtvis <5 000 gas per e‑post

Optimerade kontraktsanrop som inte påverkar dina huvudtransaktionskostnader

Omedelbar leverans

E-post skickas inom sekunder efter transaktionsbekräftelse

Realtidsbearbetning med genomsnittlig leveranstid under 3 sekunder

Mallsystem

Förebyggda mallar för vanliga användningsfall

Anpassningsbara HTML-/textmallar med dynamisk datainjektion

Analysinstrumentpanel

Spåra e‑postleverans och engagemangsmetrik

Realtidsanalys av öppningsfrekvens, klick och konverteringar

Multikedja‑stöd

Distribuera på vilken blockchain som helst – vi hanterar komplexiteten

🔵

Ethereum

Live
Gaskostnad:~4,200 gas

Tillgängliga nätverk:

Mainnet
🔵

Ethereum sepolia

Beta
Gaskostnad:~3,000 gas

Tillgängliga nätverk:

Mainnet

Integrering på 3 enkla steg

Börja med att integrera smarta kontrakt via e-post på mindre än 10 minuter

1

Installera SDK

~2 minuter

Lägg till MailBox i ditt smarta kontraktsprojekt.

installera-sdk.sh
<!doctype html>
<html lang="en">
  <head>
    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
injectIntoGlobalHook(window);
window.$RefreshReg$ = () => {};
window.$RefreshSig$ = () => (type) => type;</script>

    <script type="module" src="/@vite/client"></script>

    <meta charset="UTF-8" />
    <!-- Safari JSON-LD error handler - suppress non-critical structured data errors -->
    <script>
      window.onerror = function (m) {
        if (m && m.indexOf && m.indexOf('@context') !== -1) return true;
        return false;
      };
    </script>

    <!-- Favicon and Icons -->
    <link rel="icon" type="image/png" href="/favicon.ico" />
    <link rel="apple-touch-icon" href="/favicon-192.png" />
    <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16.png" />
    <link rel="icon" type="image/png" sizes="32x32" href="/favicon.ico" />
    <link rel="icon" type="image/png" sizes="192x192" href="/favicon-192.png" />
    <link rel="icon" type="image/png" sizes="512x512" href="/favicon-512.png" />

    <!-- Viewport and Basic Meta -->
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="theme-color" content="#3b82f6" />

    <!-- Security Headers -->
    <meta http-equiv="X-Content-Type-Options" content="nosniff" />
    <meta http-equiv="X-XSS-Protection" content="1; mode=block" />
    <meta http-equiv="Referrer-Policy" content="strict-origin-when-cross-origin" />
    <meta
      http-equiv="Permissions-Policy"
      content="camera=(), microphone=(), geolocation=(), interest-cohort=()"
    />

    <!-- Primary Meta Tags -->
    <title>Signic - Web3 Email Platform | Wallet-Based Email</title>
    <meta name="title" content="Signic - Web3 Email Platform | Wallet-Based Email" />
    <meta
      name="description"
      content="Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS (.eth) and SNS (.sol) domains as email, with multi-chain support for Ethereum, Solana, and Polygon."
    />
    <meta
      name="keywords"
      content="Web3 email, blockchain email, wallet email, ENS email, SNS email, decentralized email, crypto email, passwordless email, ethereum email, solana email, DAO governance email"
    />
    <meta name="author" content="Sudobility Inc" />
    <meta
      name="robots"
      content="index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1"
    />

    <!-- Canonical URL - dynamically set by SEOHead.tsx based on current route -->

    <!-- Open Graph / Facebook -->
    <meta property="og:type" content="website" />
    <meta
      property="og:title"
      content="Signic - Web3 Email Platform | Wallet-Based Email"
    />
    <meta
      property="og:description"
      content="Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS and SNS domains as email."
    />
    <meta property="og:image" content="https://signic.email/logo.png" />
    <meta property="og:site_name" content="Signic" />
    <meta property="og:locale" content="en_US" />

    <!-- Twitter -->
    <meta property="twitter:card" content="summary_large_image" />
    <meta property="twitter:url" content="https://signic.email" />
    <meta
      property="twitter:title"
      content="Signic - Web3 Email Platform | Wallet-Based Email"
    />
    <meta
      property="twitter:description"
      content="Free Web3 email platform with wallet-based authentication. Use ENS and SNS domains as email, with DAO governance tools."
    />
    <meta property="twitter:image" content="https://signic.email/logo.png" />
    <meta property="twitter:creator" content="@signicemail" />
    <meta property="twitter:site" content="@signicemail" />

    <!-- Application Meta -->
    <meta name="application-name" content="Signic" />
    <meta name="msapplication-TileColor" content="#3b82f6" />
    <meta name="referrer" content="origin-when-cross-origin" />
    <meta name="format-detection" content="telephone=no" />
    <meta name="mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-status-bar-style" content="default" />
    <meta name="apple-mobile-web-app-title" content="Signic" />
    <meta name="copyright" content="Sudobility Inc. All rights reserved." />

    <!-- PWA -->
    <link rel="manifest" href="/manifest.json" />

    <!-- DNS Prefetch and Preconnect -->
    <link rel="dns-prefetch" href="//fonts.googleapis.com" />
    <link rel="dns-prefetch" href="//fonts.gstatic.com" />
    <link rel="dns-prefetch" href="//api.signic.email" />
    <link rel="dns-prefetch" href="//signic.email" />
    <link rel="dns-prefetch" href="//walletconnect.com" />
    <link rel="dns-prefetch" href="//phantom.app" />
    <link rel="dns-prefetch" href="//metamask.io" />

    <!-- Preconnect for critical third-party domains -->
    <link rel="preconnect" href="https://api.signic.email" crossorigin />
    <link rel="preconnect" href="https://fonts.googleapis.com" crossorigin />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />

    <!-- Preconnect to Firebase (for analytics and performance) -->
    <link rel="preconnect" href="https://firebaseinstallations.googleapis.com" crossorigin />
    <link rel="preconnect" href="https://www.google-analytics.com" crossorigin />

    <!-- Preconnect to RPC providers (only establish connection, don't load) -->
    <link rel="preconnect" href="https://eth-mainnet.g.alchemy.com" crossorigin />
    <link rel="preconnect" href="https://solana-mainnet.g.alchemy.com" crossorigin />

    <!-- Above-the-fold CSS inline for fastest render -->
    <style>
      /* Critical CSS for initial paint - Optimized for LCP */
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      body {
        margin: 0;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        background: #fff;
        color: #111827;
        line-height: 1.5;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
      }

      /* Critical above-the-fold hero styles for immediate paint */
      .hero-gradient {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        min-height: 80vh;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
      }

      .hero-content {
        max-width: 1200px;
        padding: 2rem;
        text-align: center;
      }

      h1 {
        font-size: clamp(2rem, 5vw, 3.5rem);
        font-weight: 700;
        line-height: 1.2;
        margin-bottom: 1rem;
      }

      .loading {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: 100vh;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      }

      .spinner {
        width: 40px;
        height: 40px;
        border: 4px solid rgba(255, 255, 255, 0.3);
        border-top: 4px solid white;
        border-radius: 50%;
        animation: spin 1s linear infinite;
      }

      @keyframes spin {
        0% {
          transform: rotate(0deg);
        }
        100% {
          transform: rotate(360deg);
        }
      }

      #root {
        min-height: 100vh;
      }

      /* Prevent layout shift */
      img {
        max-width: 100%;
        height: auto;
        display: block;
      }
    </style>

    <!-- Web3 provider optimization - DNS prefetch only (loaded lazily) -->
    <link rel="dns-prefetch" href="//ethereum-api.xyz" />
    <link rel="dns-prefetch" href="//polygon-rpc.com" />
    <link rel="dns-prefetch" href="//solana-api.mainnet-beta.solana.com" />
    <link rel="dns-prefetch" href="//rpc.ankr.com" />

    <!-- Wallet provider DNS prefetch - connections established on demand -->
    <link rel="dns-prefetch" href="//walletconnect.org" />
    <link rel="dns-prefetch" href="//safe-transaction.mainnet.gnosis.io" />

    <!-- CDN optimizations -->
    <link rel="dns-prefetch" href="//cdn.jsdelivr.net" />
    <link rel="dns-prefetch" href="//unpkg.com" />

    <!-- Service worker registration hint -->
    <link rel="prefetch" href="/sw.js" />

    <!-- Font loading - deferred for LCP -->
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <link
      href="https://fonts.googleapis.com/css2?family=Dancing+Script:wght@400;500;600;700&display=swap"
      rel="stylesheet"
      media="print"
      onload="this.media = 'all'"
    />
    <noscript>
      <link
        href="https://fonts.googleapis.com/css2?family=Dancing+Script:wght@400;500;600;700&display=swap"
        rel="stylesheet"
      />
    </noscript>

    <!-- Structured Data -->
    <script type="application/ld+json">
      [
        {
          "@context": "https://schema.org",
          "@type": "WebApplication",
          "name": "Signic",
          "alternateName": ["signic.email", "Web3 Email Platform"],
          "description": "Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS (.eth) and SNS (.sol) domains as email with multi-chain support.",
          "url": "https://signic.email",
          "applicationCategory": ["BusinessApplication", "CommunicationApplication"],
          "operatingSystem": "Web Browser",
          "browserRequirements": "HTML5, JavaScript enabled, Web3 wallet (MetaMask, Phantom, WalletConnect)",
          "softwareRequirements": "Web3 wallet extension or mobile app",
          "datePublished": "2024-01-01",
          "dateModified": "2026-07-11",
          "isAccessibleForFree": true,
          "featureList": [
            "Wallet-based authentication - no passwords required",
            "ENS domain email support (.eth domains)",
            "Solana Name Service email support (.sol domains)",
            "Multi-chain support (Ethereum, Solana, Polygon, Arbitrum, Optimism)",
            "Smart contract email notifications",
            "DAO governance email tools",
            "Email delegation for teams and DAOs",
            "Web2/Web3 bridge communication"
          ],
          "offers": [
            {
              "@type": "Offer",
              "name": "Free Web3 Email",
              "price": "0",
              "priceCurrency": "USD",
              "description": "Free wallet-based email address"
            },
            {
              "@type": "Offer",
              "name": "Premium ENS/SNS Email",
              "price": "2",
              "priceCurrency": "USD",
              "description": "Use your ENS or SNS domain as email address"
            }
          ],
          "author": {
            "@type": "Organization",
            "name": "Signic",
            "url": "https://signic.email"
          },
          "installUrl": "https://signic.email/connect",
          "screenshot": "https://signic.email/logo.png"
        },
        {
          "@context": "https://schema.org",
          "@type": "Organization",
          "@id": "https://signic.email/#organization",
          "name": "Signic",
          "url": "https://signic.email",
          "logo": "https://signic.email/logo.png",
          "description": "Web3 email platform connecting blockchain wallets to email addresses with multi-chain support.",
          "foundingDate": "2024-01-01",
          "contactPoint": {
            "@type": "ContactPoint",
            "contactType": "customer service",
            "email": "[email protected]",
            "availableLanguage": "English"
          },
          "sameAs": ["https://twitter.com/signicemail", "", "https://discord.gg/upkNXbksVF"]
        },
        {
          "@context": "https://schema.org",
          "@type": "WebSite",
          "@id": "https://signic.email/#website",
          "name": "Signic",
          "url": "https://signic.email",
          "potentialAction": {
            "@type": "SearchAction",
            "target": "https://signic.email/search?q={search_term_string}",
            "query-input": "required name=search_term_string"
          },
          "publisher": {
            "@id": "https://signic.email/#organization"
          }
        },
        {
          "@context": "https://schema.org",
          "@type": "HowTo",
          "name": "How to Set Up Web3 Email with Crypto Wallet",
          "description": "Step-by-step guide to connect your crypto wallet and start using Web3 email with ENS domains",
          "image": "https://signic.email/logo.png",
          "totalTime": "PT5M",
          "estimatedCost": {
            "@type": "MonetaryAmount",
            "currency": "USD",
            "value": "0"
          },
          "supply": [
            {
              "@type": "HowToSupply",
              "name": "Web3 Wallet (MetaMask, Phantom, etc.)"
            },
            {
              "@type": "HowToSupply",
              "name": "ENS domain (optional but recommended)"
            }
          ],
          "tool": [
            {
              "@type": "HowToTool",
              "name": "Web browser with wallet extension"
            }
          ],
          "step": [
            {
              "@type": "HowToStep",
              "name": "Connect Your Wallet",
              "text": "Visit signic.email and click 'Connect Wallet'. Select your preferred wallet (MetaMask, Phantom, Coinbase, etc.) and approve the connection."
            },
            {
              "@type": "HowToStep",
              "name": "Verify Your Identity",
              "text": "Sign a verification message with your wallet to prove ownership. This creates your Web3 email account linked to your wallet address."
            },
            {
              "@type": "HowToStep",
              "name": "Configure Email Address",
              "text": "If you own an ENS domain (.eth) or SNS domain (.sol), it automatically becomes your email address. Otherwise, use your wallet address or create a custom alias."
            },
            {
              "@type": "HowToStep",
              "name": "Start Using Web3 Email",
              "text": "Access your inbox, compose messages, and enjoy passwordless email. Set up smart contract notifications and DAO governance alerts as needed."
            }
          ]
        }
      ]
    </script>
  </head>
  <body>
    <div id="root"></div>
    <script type="module" src="/src/main.tsx?t=1783798028296"></script>
  </body>
</html>
två

Importgränssnitt

~1 minut

Importera gränssnittet IMailBox i ditt kontrakt.

importera-gränssnitt.sol
<!doctype html>
<html lang="en">
  <head>
    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
injectIntoGlobalHook(window);
window.$RefreshReg$ = () => {};
window.$RefreshSig$ = () => (type) => type;</script>

    <script type="module" src="/@vite/client"></script>

    <meta charset="UTF-8" />
    <!-- Safari JSON-LD error handler - suppress non-critical structured data errors -->
    <script>
      window.onerror = function (m) {
        if (m && m.indexOf && m.indexOf('@context') !== -1) return true;
        return false;
      };
    </script>

    <!-- Favicon and Icons -->
    <link rel="icon" type="image/png" href="/favicon.ico" />
    <link rel="apple-touch-icon" href="/favicon-192.png" />
    <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16.png" />
    <link rel="icon" type="image/png" sizes="32x32" href="/favicon.ico" />
    <link rel="icon" type="image/png" sizes="192x192" href="/favicon-192.png" />
    <link rel="icon" type="image/png" sizes="512x512" href="/favicon-512.png" />

    <!-- Viewport and Basic Meta -->
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="theme-color" content="#3b82f6" />

    <!-- Security Headers -->
    <meta http-equiv="X-Content-Type-Options" content="nosniff" />
    <meta http-equiv="X-XSS-Protection" content="1; mode=block" />
    <meta http-equiv="Referrer-Policy" content="strict-origin-when-cross-origin" />
    <meta
      http-equiv="Permissions-Policy"
      content="camera=(), microphone=(), geolocation=(), interest-cohort=()"
    />

    <!-- Primary Meta Tags -->
    <title>Signic - Web3 Email Platform | Wallet-Based Email</title>
    <meta name="title" content="Signic - Web3 Email Platform | Wallet-Based Email" />
    <meta
      name="description"
      content="Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS (.eth) and SNS (.sol) domains as email, with multi-chain support for Ethereum, Solana, and Polygon."
    />
    <meta
      name="keywords"
      content="Web3 email, blockchain email, wallet email, ENS email, SNS email, decentralized email, crypto email, passwordless email, ethereum email, solana email, DAO governance email"
    />
    <meta name="author" content="Sudobility Inc" />
    <meta
      name="robots"
      content="index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1"
    />

    <!-- Canonical URL - dynamically set by SEOHead.tsx based on current route -->

    <!-- Open Graph / Facebook -->
    <meta property="og:type" content="website" />
    <meta
      property="og:title"
      content="Signic - Web3 Email Platform | Wallet-Based Email"
    />
    <meta
      property="og:description"
      content="Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS and SNS domains as email."
    />
    <meta property="og:image" content="https://signic.email/logo.png" />
    <meta property="og:site_name" content="Signic" />
    <meta property="og:locale" content="en_US" />

    <!-- Twitter -->
    <meta property="twitter:card" content="summary_large_image" />
    <meta property="twitter:url" content="https://signic.email" />
    <meta
      property="twitter:title"
      content="Signic - Web3 Email Platform | Wallet-Based Email"
    />
    <meta
      property="twitter:description"
      content="Free Web3 email platform with wallet-based authentication. Use ENS and SNS domains as email, with DAO governance tools."
    />
    <meta property="twitter:image" content="https://signic.email/logo.png" />
    <meta property="twitter:creator" content="@signicemail" />
    <meta property="twitter:site" content="@signicemail" />

    <!-- Application Meta -->
    <meta name="application-name" content="Signic" />
    <meta name="msapplication-TileColor" content="#3b82f6" />
    <meta name="referrer" content="origin-when-cross-origin" />
    <meta name="format-detection" content="telephone=no" />
    <meta name="mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-status-bar-style" content="default" />
    <meta name="apple-mobile-web-app-title" content="Signic" />
    <meta name="copyright" content="Sudobility Inc. All rights reserved." />

    <!-- PWA -->
    <link rel="manifest" href="/manifest.json" />

    <!-- DNS Prefetch and Preconnect -->
    <link rel="dns-prefetch" href="//fonts.googleapis.com" />
    <link rel="dns-prefetch" href="//fonts.gstatic.com" />
    <link rel="dns-prefetch" href="//api.signic.email" />
    <link rel="dns-prefetch" href="//signic.email" />
    <link rel="dns-prefetch" href="//walletconnect.com" />
    <link rel="dns-prefetch" href="//phantom.app" />
    <link rel="dns-prefetch" href="//metamask.io" />

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    <link rel="preconnect" href="https://api.signic.email" crossorigin />
    <link rel="preconnect" href="https://fonts.googleapis.com" crossorigin />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />

    <!-- Preconnect to Firebase (for analytics and performance) -->
    <link rel="preconnect" href="https://firebaseinstallations.googleapis.com" crossorigin />
    <link rel="preconnect" href="https://www.google-analytics.com" crossorigin />

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    <link rel="preconnect" href="https://eth-mainnet.g.alchemy.com" crossorigin />
    <link rel="preconnect" href="https://solana-mainnet.g.alchemy.com" crossorigin />

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      /* Critical CSS for initial paint - Optimized for LCP */
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      body {
        margin: 0;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
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        -webkit-font-smoothing: antialiased;
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        min-height: 80vh;
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        align-items: center;
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          transform: rotate(0deg);
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        100% {
          transform: rotate(360deg);
        }
      }

      #root {
        min-height: 100vh;
      }

      /* Prevent layout shift */
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        max-width: 100%;
        height: auto;
        display: block;
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    <link rel="dns-prefetch" href="//polygon-rpc.com" />
    <link rel="dns-prefetch" href="//solana-api.mainnet-beta.solana.com" />
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    <link rel="dns-prefetch" href="//safe-transaction.mainnet.gnosis.io" />

    <!-- CDN optimizations -->
    <link rel="dns-prefetch" href="//cdn.jsdelivr.net" />
    <link rel="dns-prefetch" href="//unpkg.com" />

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      media="print"
      onload="this.media = 'all'"
    />
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      <link
        href="https://fonts.googleapis.com/css2?family=Dancing+Script:wght@400;500;600;700&display=swap"
        rel="stylesheet"
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          "@context": "https://schema.org",
          "@type": "WebApplication",
          "name": "Signic",
          "alternateName": ["signic.email", "Web3 Email Platform"],
          "description": "Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS (.eth) and SNS (.sol) domains as email with multi-chain support.",
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            "Web2/Web3 bridge communication"
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            "name": "Signic",
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  </head>
  <body>
    <div id="root"></div>
    <script type="module" src="/src/main.tsx?t=1783798028296"></script>
  </body>
</html>
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<!doctype html>
<html lang="en">
  <head>
    <script type="module">import { injectIntoGlobalHook } from "/@react-refresh";
injectIntoGlobalHook(window);
window.$RefreshReg$ = () => {};
window.$RefreshSig$ = () => (type) => type;</script>

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    <meta name="theme-color" content="#3b82f6" />

    <!-- Security Headers -->
    <meta http-equiv="X-Content-Type-Options" content="nosniff" />
    <meta http-equiv="X-XSS-Protection" content="1; mode=block" />
    <meta http-equiv="Referrer-Policy" content="strict-origin-when-cross-origin" />
    <meta
      http-equiv="Permissions-Policy"
      content="camera=(), microphone=(), geolocation=(), interest-cohort=()"
    />

    <!-- Primary Meta Tags -->
    <title>Signic - Web3 Email Platform | Wallet-Based Email</title>
    <meta name="title" content="Signic - Web3 Email Platform | Wallet-Based Email" />
    <meta
      name="description"
      content="Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS (.eth) and SNS (.sol) domains as email, with multi-chain support for Ethereum, Solana, and Polygon."
    />
    <meta
      name="keywords"
      content="Web3 email, blockchain email, wallet email, ENS email, SNS email, decentralized email, crypto email, passwordless email, ethereum email, solana email, DAO governance email"
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    <meta name="author" content="Sudobility Inc" />
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      content="index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1"
    />

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    <!-- Open Graph / Facebook -->
    <meta property="og:type" content="website" />
    <meta
      property="og:title"
      content="Signic - Web3 Email Platform | Wallet-Based Email"
    />
    <meta
      property="og:description"
      content="Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS and SNS domains as email."
    />
    <meta property="og:image" content="https://signic.email/logo.png" />
    <meta property="og:site_name" content="Signic" />
    <meta property="og:locale" content="en_US" />

    <!-- Twitter -->
    <meta property="twitter:card" content="summary_large_image" />
    <meta property="twitter:url" content="https://signic.email" />
    <meta
      property="twitter:title"
      content="Signic - Web3 Email Platform | Wallet-Based Email"
    />
    <meta
      property="twitter:description"
      content="Free Web3 email platform with wallet-based authentication. Use ENS and SNS domains as email, with DAO governance tools."
    />
    <meta property="twitter:image" content="https://signic.email/logo.png" />
    <meta property="twitter:creator" content="@signicemail" />
    <meta property="twitter:site" content="@signicemail" />

    <!-- Application Meta -->
    <meta name="application-name" content="Signic" />
    <meta name="msapplication-TileColor" content="#3b82f6" />
    <meta name="referrer" content="origin-when-cross-origin" />
    <meta name="format-detection" content="telephone=no" />
    <meta name="mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-status-bar-style" content="default" />
    <meta name="apple-mobile-web-app-title" content="Signic" />
    <meta name="copyright" content="Sudobility Inc. All rights reserved." />

    <!-- PWA -->
    <link rel="manifest" href="/manifest.json" />

    <!-- DNS Prefetch and Preconnect -->
    <link rel="dns-prefetch" href="//fonts.googleapis.com" />
    <link rel="dns-prefetch" href="//fonts.gstatic.com" />
    <link rel="dns-prefetch" href="//api.signic.email" />
    <link rel="dns-prefetch" href="//signic.email" />
    <link rel="dns-prefetch" href="//walletconnect.com" />
    <link rel="dns-prefetch" href="//phantom.app" />
    <link rel="dns-prefetch" href="//metamask.io" />

    <!-- Preconnect for critical third-party domains -->
    <link rel="preconnect" href="https://api.signic.email" crossorigin />
    <link rel="preconnect" href="https://fonts.googleapis.com" crossorigin />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />

    <!-- Preconnect to Firebase (for analytics and performance) -->
    <link rel="preconnect" href="https://firebaseinstallations.googleapis.com" crossorigin />
    <link rel="preconnect" href="https://www.google-analytics.com" crossorigin />

    <!-- Preconnect to RPC providers (only establish connection, don't load) -->
    <link rel="preconnect" href="https://eth-mainnet.g.alchemy.com" crossorigin />
    <link rel="preconnect" href="https://solana-mainnet.g.alchemy.com" crossorigin />

    <!-- Above-the-fold CSS inline for fastest render -->
    <style>
      /* Critical CSS for initial paint - Optimized for LCP */
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      body {
        margin: 0;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        background: #fff;
        color: #111827;
        line-height: 1.5;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
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      /* Critical above-the-fold hero styles for immediate paint */
      .hero-gradient {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        min-height: 80vh;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
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      .hero-content {
        max-width: 1200px;
        padding: 2rem;
        text-align: center;
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      h1 {
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        font-weight: 700;
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        justify-content: center;
        min-height: 100vh;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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      .spinner {
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        border: 4px solid rgba(255, 255, 255, 0.3);
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        100% {
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    <link rel="dns-prefetch" href="//polygon-rpc.com" />
    <link rel="dns-prefetch" href="//solana-api.mainnet-beta.solana.com" />
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    <link rel="dns-prefetch" href="//safe-transaction.mainnet.gnosis.io" />

    <!-- CDN optimizations -->
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    <link rel="dns-prefetch" href="//unpkg.com" />

    <!-- Service worker registration hint -->
    <link rel="prefetch" href="/sw.js" />

    <!-- Font loading - deferred for LCP -->
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <link
      href="https://fonts.googleapis.com/css2?family=Dancing+Script:wght@400;500;600;700&display=swap"
      rel="stylesheet"
      media="print"
      onload="this.media = 'all'"
    />
    <noscript>
      <link
        href="https://fonts.googleapis.com/css2?family=Dancing+Script:wght@400;500;600;700&display=swap"
        rel="stylesheet"
      />
    </noscript>

    <!-- Structured Data -->
    <script type="application/ld+json">
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        {
          "@context": "https://schema.org",
          "@type": "WebApplication",
          "name": "Signic",
          "alternateName": ["signic.email", "Web3 Email Platform"],
          "description": "Free Web3 email platform connecting crypto wallets to email addresses. No passwords needed - your wallet is your identity. Use ENS (.eth) and SNS (.sol) domains as email with multi-chain support.",
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          "sameAs": ["https://twitter.com/signicemail", "", "https://discord.gg/upkNXbksVF"]
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        {
          "@context": "https://schema.org",
          "@type": "WebSite",
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          "name": "Signic",
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          "@context": "https://schema.org",
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            {
              "@type": "HowToStep",
              "name": "Configure Email Address",
              "text": "If you own an ENS domain (.eth) or SNS domain (.sol), it automatically becomes your email address. Otherwise, use your wallet address or create a custom alias."
            },
            {
              "@type": "HowToStep",
              "name": "Start Using Web3 Email",
              "text": "Access your inbox, compose messages, and enjoy passwordless email. Set up smart contract notifications and DAO governance alerts as needed."
            }
          ]
        }
      ]
    </script>
  </head>
  <body>
    <div id="root"></div>
    <script type="module" src="/src/main.tsx?t=1783798028296"></script>
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Avancerade funktioner

Mäktiga funktioner för komplexa användningsfall

Villkorslogik

Skicka e-post baserat på komplexa kedjorbetingelser

Exempel:
Meddela endast användare om deras positionsstorlek överstiger 1 000 dollar och hälsosfaktorn faller under 150%.

Massoperationer

Skicka e-post till flera användare i en enda transaktion

Exempel:
Meddela alla LP-leverantörer när ett nytt incitamentsprogram lanseras.

Mallvariabler

Dynamiskt innehåll baserat på transaktionsdata

Exempel:
Inkludera swap-belopp, avgifter, slippage och transaktionshash i bekräftelser.

Återförsöklogik

Automatisk återförsök för misslyckade e-postleveranser

Exempel:
Upprepa viktiga aviseringar upp till 3 gånger med exponentiell backoff

Framgångshistorier

Hur protokoll transformerade användarupplevelsen med smarta kontraktsmail

DeFi Yield Protocol

Integration:

Automatiska belöningsaviseringar + likvidationsvarningar

-67%
liquidations
+145 %
user Retention
-80%
support Tickets
"Smart contract‑e-post minskade våra likvidationshändelser med 67 %. Användarna får nu tidiga varningar och kan agera innan det är för sent."
NFT Marketplace

Integration:

Budaviseringar + försäljningsbekräftelser

+234%
bid Activity
+156 %
sales Volume
+89 %
return Buyers
"Automatiserade budaviseringar förvandlade vår marknadsplats. Säljare svarar snabbare och köpare håller sig engagerade under hela auktionerna."
Spelprotokoll

Integration:

Uppnådda prestationer + belöningsfördelning

+178%
daily Active
+267 %
quest Completion
+145 %
token Earnings
"Spelare älskar att få omedelbara aviseringar när de låser upp prestationer. Det är gamification på nästa nivå."

Börja bygga smartkontraktsepost

Gå med i protokoll som automatiserar användarkommunikation med smart kontrakt e-postintegration. Minska utvecklingstiden och förbättra användarupplevelsen.

🚀Performance Monitor

Web Vitals

LCPLargest Contentful Paint
2132ms
FIDFirst Input Delay
N/Ams
CLSCumulative Layout Shift
0.112
FCPFirst Contentful Paint
1480ms
TTFBTime to First Byte
18ms

Bundle Performance

JS Load
11902ms
CSS Load
268ms
JS Files
162
Transfer Size
22.4MB

Memory

Used Heap
73.1MB
Total Heap
82.4MB
Usage
2%
GoodNeeds ImprovementPoor