feat: add robots

deploy_dev.sh

@@ -16,9 +16,6 @@ NC='\033[0m' # No Color
 ubuntu_HOST="ubuntu"
 DEPLOY_PATH="/var/www"
 DEPLOY_NAME="app.cloud"
-# Sudo 密码（如果需要，建议配置无密码 sudo 更安全）
-# 配置无密码 sudo: 在服务器上运行: echo "username ALL=(ALL) NOPASSWD: ALL" | sudo tee /etc/sudoers.d/username
-SUDO_PASSWORD="1231"
 
 # 打印带颜色的消息
 print_info() {
@@ -62,15 +59,13 @@ deploy_to_server() {
         return 1
     fi
     
-    # SSH 执行部署操作
+    # SSH 执行部署操作（非交互模式）
     print_info "在 ${server} 上执行部署操作..."
     print_info "部署路径: ${DEPLOY_PATH}/${DEPLOY_NAME}"
-    # 注意：密码通过环境变量传递，避免在命令行中暴露
+    ssh_output=$(ssh ${server} bash << SSH_EOF
-    ssh_output=$(SSH_SUDO_PASSWORD="${SUDO_PASSWORD}" ssh ${server} bash << SSH_EOF
         set -e
         DEPLOY_PATH="${DEPLOY_PATH}"
         DEPLOY_NAME="${DEPLOY_NAME}"
-        SUDO_PASSWORD="\${SSH_SUDO_PASSWORD}"
         
         # 检查部署目录是否存在
         if [ ! -d "\${DEPLOY_PATH}" ]; then
@@ -78,35 +73,35 @@ deploy_to_server() {
             exit 1
         fi
         
-        # 检查是否有权限写入（尝试创建测试文件）
+        # 检查是否有权限写入，若无则尝试免密 sudo（sudo -n）
+        SUDO_CMD=""
         if ! touch "\${DEPLOY_PATH}/.deploy_test" 2>/dev/null; then
-            echo "提示：没有直接写入权限，将使用 sudo 执行操作"
+            if sudo -n true 2>/dev/null; then
-            USE_SUDO=1
+                echo "提示：没有直接写入权限，使用 sudo -n 执行部署操作"
+                SUDO_CMD="sudo -n"
+            else
+                echo "错误：没有写入权限，且 sudo 需要密码（非交互部署无法输入）"
+                echo "请执行以下任一方案后重试："
+                echo "  1) 将部署目录改为当前用户可写目录（例如 /home/\$USER/www）"
+                echo "  2) 为当前用户配置免密 sudo（NOPASSWD）"
+                exit 1
+            fi
         else
             rm -f "\${DEPLOY_PATH}/.deploy_test"
-            USE_SUDO=0
+            echo "提示：检测到部署目录可直接写入"
         fi
         
         # 备份旧版本（如果存在）
         if [ -d "\${DEPLOY_PATH}/\${DEPLOY_NAME}" ]; then
             echo "备份旧版本..."
-            if [ "\$USE_SUDO" = "1" ]; then
+            \$SUDO_CMD rm -rf "\${DEPLOY_PATH}/\${DEPLOY_NAME}_bak" 2>/dev/null || true
-                echo "\${SUDO_PASSWORD}" | sudo -S rm -rf "\${DEPLOY_PATH}/\${DEPLOY_NAME}_bak" 2>/dev/null || true
+            \$SUDO_CMD mv "\${DEPLOY_PATH}/\${DEPLOY_NAME}" "\${DEPLOY_PATH}/\${DEPLOY_NAME}_bak" || { echo "错误：备份失败，权限不足"; exit 1; }
-                echo "\${SUDO_PASSWORD}" | sudo -S mv "\${DEPLOY_PATH}/\${DEPLOY_NAME}" "\${DEPLOY_PATH}/\${DEPLOY_NAME}_bak" || { echo "错误：备份失败，权限不足"; exit 1; }
-            else
-                rm -rf "\${DEPLOY_PATH}/\${DEPLOY_NAME}_bak" 2>/dev/null || true
-                mv "\${DEPLOY_PATH}/\${DEPLOY_NAME}" "\${DEPLOY_PATH}/\${DEPLOY_NAME}_bak" || { echo "错误：备份失败"; exit 1; }
-            fi
         fi
         
         # 移动新版本到部署目录（覆盖现有目录）
         if [ -d ~/\${DEPLOY_NAME} ]; then
             echo "移动新版本到部署目录..."
-            if [ "\$USE_SUDO" = "1" ]; then
+            \$SUDO_CMD mv ~/\${DEPLOY_NAME} "\${DEPLOY_PATH}/" || { echo "错误：移动文件失败，权限不足"; exit 1; }
-                echo "\${SUDO_PASSWORD}" | sudo -S mv ~/\${DEPLOY_NAME} "\${DEPLOY_PATH}/" || { echo "错误：移动文件失败，权限不足"; exit 1; }
-            else
-                mv ~/\${DEPLOY_NAME} "\${DEPLOY_PATH}/" || { echo "错误：移动文件失败"; exit 1; }
-            fi
             echo "部署完成！"
         else
             echo "错误：找不到 ~/\${DEPLOY_NAME} 目录"
@@ -116,7 +111,11 @@ deploy_to_server() {
         # 重新加载 nginx（如果配置了）
         if command -v nginx &> /dev/null; then
             echo "重新加载 nginx..."
-            echo "\${SUDO_PASSWORD}" | sudo -S nginx -t && echo "\${SUDO_PASSWORD}" | sudo -S nginx -s reload || echo "警告：nginx 重新加载失败，请手动检查"
+            if [ -n "\$SUDO_CMD" ]; then
+                \$SUDO_CMD nginx -t && \$SUDO_CMD nginx -s reload || echo "警告：nginx 重新加载失败，请手动检查"
+            else
+                nginx -t && nginx -s reload || echo "警告：nginx 重新加载失败，请手动检查"
+            fi
         fi
 SSH_EOF
     )

index.html

@@ -5,10 +5,9 @@
   <meta charset="UTF-8" />
   <link rel="icon" type="image/svg+xml" href="/vite.svg" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  
+  <link rel="canonical" href="https://texpixel.com/" />
-  <!-- Multi-language Support -->
   <link rel="alternate" hreflang="zh-CN" href="https://texpixel.com/" />
-  <link rel="alternate" hreflang="en" href="https://texpixel.com/en" />
+  <link rel="alternate" hreflang="en" href="https://texpixel.com/en/" />
   <link rel="alternate" hreflang="x-default" href="https://texpixel.com/" />
   
   <!-- Dynamic Title (will be updated by app) -->
@@ -41,6 +40,34 @@
   <!-- Baidu Verification -->
   <meta name="baidu-site-verification" content="codeva-8zU93DeGgH" />
 
+  <!-- Structured Data -->
+  <script type="application/ld+json">
+    {
+      "@context": "https://schema.org",
+      "@type": "WebSite",
+      "name": "TexPixel",
+      "url": "https://texpixel.com/",
+      "inLanguage": ["zh-CN", "en"],
+      "description": "Formula recognition tool for converting images and PDFs into LaTeX, MathML, and Markdown."
+    }
+  </script>
+  <script type="application/ld+json">
+    {
+      "@context": "https://schema.org",
+      "@type": "SoftwareApplication",
+      "name": "TexPixel",
+      "applicationCategory": "BusinessApplication",
+      "operatingSystem": "Web",
+      "url": "https://texpixel.com/",
+      "offers": {
+        "@type": "Offer",
+        "price": "0",
+        "priceCurrency": "USD"
+      },
+      "description": "Online OCR and formula recognition for printed and handwritten mathematical expressions."
+    }
+  </script>
+
   <!-- Language Detection Script -->
   <script>
     // Update HTML lang attribute based on user preference or browser language
@@ -64,4 +91,4 @@
   <script type="module" src="/src/main.tsx"></script>
 </body>
 
-</html>
+</html>

public/en/index.html

@@ -0,0 +1,167 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <title>TexPixel - Formula Recognition Tool for LaTeX, MathML, and Markdown</title>
+  <meta name="description" content="TexPixel converts printed and handwritten math formulas from images and PDFs into LaTeX, MathML, and Markdown." />
+  <meta name="robots" content="index, follow" />
+  <meta name="author" content="TexPixel Team" />
+  <link rel="canonical" href="https://texpixel.com/en/" />
+  <link rel="alternate" hreflang="zh-CN" href="https://texpixel.com/" />
+  <link rel="alternate" hreflang="en" href="https://texpixel.com/en/" />
+  <link rel="alternate" hreflang="x-default" href="https://texpixel.com/" />
+
+  <meta property="og:type" content="website" />
+  <meta property="og:site_name" content="TexPixel" />
+  <meta property="og:locale" content="en_US" />
+  <meta property="og:locale:alternate" content="zh_CN" />
+  <meta property="og:url" content="https://texpixel.com/en/" />
+  <meta property="og:title" content="TexPixel - Formula Recognition Tool" />
+  <meta property="og:description" content="Extract formulas from images and PDFs to editable LaTeX, MathML, and Markdown." />
+  <meta property="og:image" content="https://cdn.texpixel.com/public/logo.png?x-oss-process=image/resize,w_600" />
+
+  <meta name="twitter:card" content="summary_large_image" />
+  <meta name="twitter:site" content="@TexPixel" />
+  <meta name="twitter:title" content="TexPixel - Formula Recognition Tool" />
+  <meta name="twitter:description" content="Convert mathematical content from images and PDFs into LaTeX, MathML, and Markdown." />
+  <meta name="twitter:image" content="https://cdn.texpixel.com/public/logo.png?x-oss-process=image/resize,w_600" />
+
+  <script type="application/ld+json">
+    {
+      "@context": "https://schema.org",
+      "@type": "WebPage",
+      "name": "TexPixel English",
+      "url": "https://texpixel.com/en/",
+      "inLanguage": "en",
+      "description": "Formula recognition landing page in English."
+    }
+  </script>
+  <script type="application/ld+json">
+    {
+      "@context": "https://schema.org",
+      "@type": "FAQPage",
+      "mainEntity": [
+        {
+          "@type": "Question",
+          "name": "What can TexPixel recognize?",
+          "acceptedAnswer": {
+            "@type": "Answer",
+            "text": "TexPixel recognizes printed and handwritten mathematical formulas from images and PDF pages."
+          }
+        },
+        {
+          "@type": "Question",
+          "name": "Which output formats are supported?",
+          "acceptedAnswer": {
+            "@type": "Answer",
+            "text": "TexPixel supports LaTeX, MathML, and Markdown outputs for downstream editing and publishing."
+          }
+        },
+        {
+          "@type": "Question",
+          "name": "Do I need to install software?",
+          "acceptedAnswer": {
+            "@type": "Answer",
+            "text": "No installation is required. TexPixel works as a web application."
+          }
+        }
+      ]
+    }
+  </script>
+  <style>
+    :root {
+      --bg: #f7f8fc;
+      --text: #111827;
+      --muted: #4b5563;
+      --accent: #0f766e;
+      --accent-hover: #0d5f59;
+      --card: #ffffff;
+    }
+    * { box-sizing: border-box; }
+    body {
+      margin: 0;
+      font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
+      color: var(--text);
+      background: radial-gradient(circle at 20% 20%, #eefbf8 0%, var(--bg) 40%, #f6f8ff 100%);
+      line-height: 1.6;
+    }
+    .wrap {
+      max-width: 980px;
+      margin: 0 auto;
+      padding: 48px 20px 64px;
+    }
+    .hero, .section {
+      background: var(--card);
+      border-radius: 14px;
+      padding: 28px;
+      box-shadow: 0 10px 30px rgba(17, 24, 39, 0.06);
+      margin-bottom: 20px;
+    }
+    h1 {
+      margin: 0 0 8px;
+      font-size: clamp(28px, 4vw, 42px);
+      line-height: 1.2;
+    }
+    h2 {
+      margin: 0 0 12px;
+      font-size: 24px;
+    }
+    p { margin: 0 0 14px; color: var(--muted); }
+    ul { margin: 0; padding-left: 20px; color: var(--muted); }
+    li { margin-bottom: 8px; }
+    .cta {
+      display: inline-block;
+      margin-top: 10px;
+      background: var(--accent);
+      color: #fff;
+      text-decoration: none;
+      font-weight: 600;
+      padding: 12px 18px;
+      border-radius: 10px;
+    }
+    .cta:hover { background: var(--accent-hover); }
+    .small { font-size: 14px; }
+  </style>
+</head>
+<body>
+  <main class="wrap">
+    <section class="hero">
+      <h1>Formula Recognition for Real Math Workflows</h1>
+      <p>TexPixel converts formulas from screenshots, photos, and PDF pages into editable text formats for researchers, students, and engineering teams.</p>
+      <a class="cta" id="open-app" href="/">Open TexPixel App</a>
+      <p class="small">The app opens at the main product URL and defaults to English for this entry point.</p>
+    </section>
+
+    <section class="section">
+      <h2>Core Capabilities</h2>
+      <ul>
+        <li>Recognize printed and handwritten formulas from image or PDF input.</li>
+        <li>Export to LaTeX for papers, MathML for web workflows, and Markdown for docs.</li>
+        <li>Use the browser-based workflow without local software installation.</li>
+      </ul>
+    </section>
+
+    <section class="section">
+      <h2>FAQ</h2>
+      <p><strong>Is TexPixel browser-based?</strong><br />Yes. You can upload files and get output directly in the web app.</p>
+      <p><strong>What content type works best?</strong><br />Clean scans and high-contrast screenshots improve recognition quality.</p>
+      <p><strong>Can I reuse output in technical documents?</strong><br />Yes. LaTeX and Markdown outputs are intended for editing and reuse.</p>
+    </section>
+  </main>
+
+  <script>
+    (function () {
+      var openApp = document.getElementById('open-app');
+      if (!openApp) return;
+      openApp.addEventListener('click', function () {
+        try {
+          localStorage.setItem('language', 'en');
+        } catch (err) {
+          // Keep navigation working even if storage is unavailable.
+        }
+      });
+    })();
+  </script>
+</body>
+</html>

public/llms.txt

@@ -0,0 +1,14 @@
+# TexPixel
+
+TexPixel is a web tool for converting images and PDFs into editable mathematical formats such as LaTeX, MathML, and Markdown.
+
+Canonical URL: https://texpixel.com/
+Primary languages: zh-CN, en
+
+## Preferred page for citation
+- https://texpixel.com/
+- https://texpixel.com/en/
+
+## Crawl guidance
+- Public product content is allowed for indexing.
+- Avoid API and authenticated/private areas.

public/robots.txt

@@ -0,0 +1,7 @@
+User-agent: *
+Allow: /
+Disallow: /api/
+Disallow: /auth/
+Disallow: /admin/
+
+Sitemap: https://texpixel.com/sitemap.xml

public/sitemap.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <url>
+    <loc>https://texpixel.com/</loc>
+    <lastmod>2026-02-25</lastmod>
+    <changefreq>weekly</changefreq>
+    <priority>1.0</priority>
+  </url>
+  <url>
+    <loc>https://texpixel.com/en/</loc>
+    <lastmod>2026-02-25</lastmod>
+    <changefreq>weekly</changefreq>
+    <priority>0.9</priority>
+  </url>
+</urlset>