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  "markdown": "🧾\n\n[手寫統一發票與 5% 營業稅計算機](https://accessibilityaaa.github.io/mybanddown/05-501-tax-invoice.html)\n\n自動計算未稅價、含稅價與 5% 營業稅，同步生成國字金額大寫（壹, 貳, 參...），開發票不再寫錯！\n\n[營業稅5%計算](https://accessibilityaaa.github.io/mybanddown/05-501-tax-invoice.html) [金額國字大寫](https://accessibilityaaa.github.io/mybanddown/05-501-tax-invoice.html) [公司統編反查](https://accessibilityaaa.github.io/mybanddown/05-504-hash-generator.html)\n\n📄\n\n[PDF 萬用工具箱 (列印/併頁/壓縮)](https://accessibilityaaa.github.io/mybanddown/03-301-pdf-print-layout.html)\n\n多頁併一頁列印、身分證正反面影本合併排版、PDF 極速壓縮與 JPG/PDF 雙向轉檔。免上傳！\n\n[多頁併一頁](https://accessibilityaaa.github.io/mybanddown/03-301-pdf-print-layout.html) [身分證影本](https://accessibilityaaa.github.io/mybanddown/03-301-pdf-print-layout.html) [PDF合併分割](https://accessibilityaaa.github.io/mybanddown/03-302-pdf-merge-split.html)\n\n🖼️\n\n[圖片隱私馬賽克與 HEIC/WebP 轉檔](https://accessibilityaaa.github.io/mybanddown/04-402-img-editor.html)\n\n人臉車牌馬賽克、EXIF 清除、iPhone HEIC 照片轉 JPG、證件照換底色與多圖拼貼。\n\n[▦ 馬賽克隱私](https://accessibilityaaa.github.io/mybanddown/04-401-img-privacy.html) [HEIC/WebP轉檔](https://accessibilityaaa.github.io/mybanddown/04-405-heic-webp-convert.html) [證件照換底色](https://accessibilityaaa.github.io/mybanddown/04-403-id-photo.html)\n\n📐\n\n[萬用單位換算器與線上螢幕實物尺](https://accessibilityaaa.github.io/mybanddown/05-503-unit-converter.html)\n\n坪數轉平方公尺、長度/重量/容量換算、螢幕實物 1:1 直尺量測與高強度密碼生成。\n\n[坪數/單位換算](https://accessibilityaaa.github.io/mybanddown/05-503-unit-converter.html) [📏 螢幕 1:1 直尺](https://accessibilityaaa.github.io/mybanddown/05-503-unit-converter.html) [隨機高強度密碼](https://accessibilityaaa.github.io/mybanddown/06-601-password-gen.html)\n\n🎓\n\n[全螢幕段考與目標倒數計時器](https://accessibilityaaa.github.io/mybanddown/06-604-exam-countdown.html)\n\n專為老師與學生打造！大字清晰倒數、自訂班級鼓勵標語、支援滿版投影幕模式。\n\n[🎓 段考倒數](https://accessibilityaaa.github.io/mybanddown/06-604-exam-countdown.html) [📺 滿版投影幕模式](https://accessibilityaaa.github.io/mybanddown/06-604-exam-countdown.html) [全螢幕數位時鐘](https://accessibilityaaa.github.io/mybanddown/06-603-digital-clock.html)\n\n🎲\n\n[課堂隨機點名抽籤與團隊公平分組](https://accessibilityaaa.github.io/mybanddown/01-102-random-picker.html)\n\n老師教學與團康必備！學生名單隨機抽卡、公平團隊分組與亂數號碼生成。\n\n[🎴 隨機點名抽卡](https://accessibilityaaa.github.io/mybanddown/01-102-random-picker.html) [👥 公平團隊分組](https://accessibilityaaa.github.io/mybanddown/01-103-random-group.html) [🔢 亂數號碼抽籤](https://accessibilityaaa.github.io/mybanddown/01-106-number-gen.html)\n\n🎡\n\n[午餐/下午茶決策轉盤與團購抽籤](https://accessibilityaaa.github.io/mybanddown/01-101-wheel.html)\n\n告別選擇困難！預載連鎖便當與熱門飲料菜單轉盤、派對懲罰，以及今天誰去拿外送抽籤。\n\n[🍱 便當菜單轉盤](https://accessibilityaaa.github.io/mybanddown/01-101-wheel.html) [🧋 飲料店轉盤](https://accessibilityaaa.github.io/mybanddown/01-101-wheel.html) [🏃 誰去拿外送抽籤](https://accessibilityaaa.github.io/mybanddown/01-101-wheel.html)\n\n🪵\n\n[微舒壓功德木魚、氣泡紙與一鍵偽裝](https://accessibilityaaa.github.io/mybanddown/01-105-coin-dice.html)\n\n敲擊電子木魚累積功德、指尖按壓爆破氣泡紙、3D 擲筊問事，附按下 Esc 0 毫秒極速偽裝鍵！\n\n[🪵 線上功德木魚](https://accessibilityaaa.github.io/mybanddown/01-105-coin-dice.html) [🫧 爆破氣泡紙](https://accessibilityaaa.github.io/mybanddown/01-105-coin-dice.html) [🧧 3D擲筊問事](https://accessibilityaaa.github.io/mybanddown/01-105-coin-dice.html) [⚡ BossKey偽裝鍵](https://accessibilityaaa.github.io/mybanddown/01-105-coin-dice.html)\n\n║▌\n\n[QR Code / 一維條碼與特殊符號大全](https://accessibilityaaa.github.io/mybanddown/02-204-qrcode-gen.html)\n\n網址/Wi-Fi/名片轉 QR Code、CODE128 商品條碼生成與千種特殊符號/顏文字一鍵複製。\n\n[QR Code產生器](https://accessibilityaaa.github.io/mybanddown/02-204-qrcode-gen.html) [一維條碼生成](https://accessibilityaaa.github.io/mybanddown/02-205-barcode-gen.html) [特殊符號顏文字](https://accessibilityaaa.github.io/mybanddown/02-202-symbols.html)\n\n📊\n\n[線上字數統計、IG 酷文字與特效轉換](https://accessibilityaaa.github.io/mybanddown/02-201-char-count.html)\n\n實時計算中英文字數、IG 草書/泡泡字體生成、全半形/繁簡轉換與社群空白清理。\n\n[字數/中英文統計](https://accessibilityaaa.github.io/mybanddown/02-201-char-count.html) [🔤 IG藝術字體](https://accessibilityaaa.github.io/mybanddown/02-203-fancy-text.html) [全半形/繁簡轉換](https://accessibilityaaa.github.io/mybanddown/02-206-full-half-width.html)\n",
  "fullPageMarkdown": "買便當 mybanddown - 專為上班族與師生打造的免費線上工具箱            [跳過導覽選單，直接進入主要內容區](https://accessibilityaaa.github.io/mybanddown/index.html#main-content)\n\n🔥 精選工具總覽 💼 辦公與商務發票 👨‍🏫 課堂點名與倒數 🍱 午餐與團購決策 📝 文案排版與符號 😮‍💨 舒壓與偷閒小遊戲\n\n🔍 查無相關工具，請嘗試換個關鍵字搜尋！\n\n🧾\n\n[手寫統一發票與 5% 營業稅計算機](https://accessibilityaaa.github.io/mybanddown/05-501-tax-invoice.html)\n\n自動計算未稅價、含稅價與 5% 營業稅，同步生成國字金額大寫（壹, 貳, 參...），開發票不再寫錯！\n\n[營業稅5%計算](https://accessibilityaaa.github.io/mybanddown/05-501-tax-invoice.html) [金額國字大寫](https://accessibilityaaa.github.io/mybanddown/05-501-tax-invoice.html) [公司統編反查](https://accessibilityaaa.github.io/mybanddown/05-504-hash-generator.html)\n\n📄\n\n[PDF 萬用工具箱 (列印/併頁/壓縮)](https://accessibilityaaa.github.io/mybanddown/03-301-pdf-print-layout.html)\n\n多頁併一頁列印、身分證正反面影本合併排版、PDF 極速壓縮與 JPG/PDF 雙向轉檔。免上傳！\n\n[多頁併一頁](https://accessibilityaaa.github.io/mybanddown/03-301-pdf-print-layout.html) [身分證影本](https://accessibilityaaa.github.io/mybanddown/03-301-pdf-print-layout.html) [PDF合併分割](https://accessibilityaaa.github.io/mybanddown/03-302-pdf-merge-split.html)\n\n🖼️\n\n[圖片隱私馬賽克與 HEIC/WebP 轉檔](https://accessibilityaaa.github.io/mybanddown/04-402-img-editor.html)\n\n人臉車牌馬賽克、EXIF 清除、iPhone HEIC 照片轉 JPG、證件照換底色與多圖拼貼。\n\n[▦ 馬賽克隱私](https://accessibilityaaa.github.io/mybanddown/04-401-img-privacy.html) [HEIC/WebP轉檔](https://accessibilityaaa.github.io/mybanddown/04-405-heic-webp-convert.html) [證件照換底色](https://accessibilityaaa.github.io/mybanddown/04-403-id-photo.html)\n\n📐\n\n[萬用單位換算器與線上螢幕實物尺](https://accessibilityaaa.github.io/mybanddown/05-503-unit-converter.html)\n\n坪數轉平方公尺、長度/重量/容量換算、螢幕實物 1:1 直尺量測與高強度密碼生成。\n\n[坪數/單位換算](https://accessibilityaaa.github.io/mybanddown/05-503-unit-converter.html) [📏 螢幕 1:1 直尺](https://accessibilityaaa.github.io/mybanddown/05-503-unit-converter.html) [隨機高強度密碼](https://accessibilityaaa.github.io/mybanddown/06-601-password-gen.html)\n\n🎓\n\n[全螢幕段考與目標倒數計時器](https://accessibilityaaa.github.io/mybanddown/06-604-exam-countdown.html)\n\n專為老師與學生打造！大字清晰倒數、自訂班級鼓勵標語、支援滿版投影幕模式。\n\n[🎓 段考倒數](https://accessibilityaaa.github.io/mybanddown/06-604-exam-countdown.html) [📺 滿版投影幕模式](https://accessibilityaaa.github.io/mybanddown/06-604-exam-countdown.html) [全螢幕數位時鐘](https://accessibilityaaa.github.io/mybanddown/06-603-digital-clock.html)\n\n🎲\n\n[課堂隨機點名抽籤與團隊公平分組](https://accessibilityaaa.github.io/mybanddown/01-102-random-picker.html)\n\n老師教學與團康必備！學生名單隨機抽卡、公平團隊分組與亂數號碼生成。\n\n[🎴 隨機點名抽卡](https://accessibilityaaa.github.io/mybanddown/01-102-random-picker.html) [👥 公平團隊分組](https://accessibilityaaa.github.io/mybanddown/01-103-random-group.html) [🔢 亂數號碼抽籤](https://accessibilityaaa.github.io/mybanddown/01-106-number-gen.html)\n\n🎡\n\n[午餐/下午茶決策轉盤與團購抽籤](https://accessibilityaaa.github.io/mybanddown/01-101-wheel.html)\n\n告別選擇困難！預載連鎖便當與熱門飲料菜單轉盤、派對懲罰，以及今天誰去拿外送抽籤。\n\n[🍱 便當菜單轉盤](https://accessibilityaaa.github.io/mybanddown/01-101-wheel.html) [🧋 飲料店轉盤](https://accessibilityaaa.github.io/mybanddown/01-101-wheel.html) [🏃 誰去拿外送抽籤](https://accessibilityaaa.github.io/mybanddown/01-101-wheel.html)\n\n🪵\n\n[微舒壓功德木魚、氣泡紙與一鍵偽裝](https://accessibilityaaa.github.io/mybanddown/01-105-coin-dice.html)\n\n敲擊電子木魚累積功德、指尖按壓爆破氣泡紙、3D 擲筊問事，附按下 Esc 0 毫秒極速偽裝鍵！\n\n[🪵 線上功德木魚](https://accessibilityaaa.github.io/mybanddown/01-105-coin-dice.html) [🫧 爆破氣泡紙](https://accessibilityaaa.github.io/mybanddown/01-105-coin-dice.html) [🧧 3D擲筊問事](https://accessibilityaaa.github.io/mybanddown/01-105-coin-dice.html) [⚡ BossKey偽裝鍵](https://accessibilityaaa.github.io/mybanddown/01-105-coin-dice.html)\n\n║▌\n\n[QR Code / 一維條碼與特殊符號大全](https://accessibilityaaa.github.io/mybanddown/02-204-qrcode-gen.html)\n\n網址/Wi-Fi/名片轉 QR Code、CODE128 商品條碼生成與千種特殊符號/顏文字一鍵複製。\n\n[QR Code產生器](https://accessibilityaaa.github.io/mybanddown/02-204-qrcode-gen.html) [一維條碼生成](https://accessibilityaaa.github.io/mybanddown/02-205-barcode-gen.html) [特殊符號顏文字](https://accessibilityaaa.github.io/mybanddown/02-202-symbols.html)\n\n📊\n\n[線上字數統計、IG 酷文字與特效轉換](https://accessibilityaaa.github.io/mybanddown/02-201-char-count.html)\n\n實時計算中英文字數、IG 草書/泡泡字體生成、全半形/繁簡轉換與社群空白清理。\n\n[字數/中英文統計](https://accessibilityaaa.github.io/mybanddown/02-201-char-count.html) [🔤 IG藝術字體](https://accessibilityaaa.github.io/mybanddown/02-203-fancy-text.html) [全半形/繁簡轉換](https://accessibilityaaa.github.io/mybanddown/02-206-full-half-width.html)\n\n📦 展開更多輔助工具 (農民曆、假文、網速測速、語音錄音) ▼ 點擊展開\n\n📅\n\n[農民曆與國農曆對照](https://accessibilityaaa.github.io/mybanddown/06-607-lunar-calendar.html)\n\n每日黃歷宜忌、二十四節氣與國農曆精準對照。\n\n📑\n\n[Lorem Ipsum 假文字產生器](https://accessibilityaaa.github.io/mybanddown/02-210-lorem-ipsum.html)\n\n提供排版測試用的亂數假字生成。\n\n🎬\n\n[線上影片剪輯與螢幕/鏡頭錄影](https://accessibilityaaa.github.io/mybanddown/04-406-video-tools.html)\n\n純前端影片分割、轉 GIF 與螢幕錄影工具。\n\n🚀\n\n[純網頁網路測速與運動計分板](https://accessibilityaaa.github.io/mybanddown/06-608-scoreboard.html)\n\n即時測試網路速度與比賽比分記錄。\n\n### 🚇 常用交通路線圖與生活參考 (官方直達連結)\n\n[🚇 台北捷運路線圖 🔗](https://www.metro.taipei/) [🚊 高雄捷運與輕軌 🔗](https://www.krtc.com.tw/) [🚆 台中捷運路線圖 🔗](https://www.tmrt.com.tw/) [✈️ 桃園機場捷運 🔗](https://www.tymetro.com.tw/) [🛣️ 國道計程與交流道 🔗](https://freeway.thb.gov.tw/) [🍃 台灣空氣品質 (AQI) 🔗](https://airtw.moenv.gov.tw/)\n",
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          "meaningful_alt_texts": {
            "score": 100,
            "weight": 15,
            "evidence": "plausible",
            "details": "No images found"
          },
          "low_div_nesting": {
            "score": 100,
            "weight": 10,
            "evidence": "speculative",
            "details": "Avg div depth: 2.3, max: 5"
          }
        }
      },
      "contentEfficiency": {
        "score": 67,
        "weight": 10,
        "grade": "C",
        "checks": {
          "token_reduction_ratio": {
            "score": 80,
            "weight": 40,
            "evidence": "speculative",
            "details": "70% token reduction (HTML→Markdown)"
          },
          "content_to_noise_ratio": {
            "score": 50,
            "weight": 30,
            "evidence": "speculative",
            "details": "Content ratio: 13.7% (3141 content chars / 22958 HTML bytes)"
          },
          "reasonable_page_weight": {
            "score": 100,
            "weight": 20,
            "evidence": "speculative",
            "details": "HTML size: 22KB"
          },
          "minimal_inline_styles": {
            "score": 0,
            "weight": 10,
            "evidence": "speculative",
            "details": "9/169 elements with inline styles (5.3%)"
          }
        }
      }
    }
  },
  "recommendations": [
    {
      "id": "add_schema_org",
      "priority": "critical",
      "category": "structuredData",
      "titleKey": "rec.add_schema_org.title",
      "descriptionKey": "rec.add_schema_org.description",
      "howToKey": "rec.add_schema_org.howto",
      "howToStepKeys": null,
      "effort": "moderate",
      "estimatedImpact": 7,
      "maxImpact": 7,
      "evidence": "proven",
      "checkScore": 0,
      "checkDetails": "No JSON-LD / Schema.org found"
    },
    {
      "id": "add_markdown_negotiation",
      "priority": "critical",
      "category": "aiDiscoverability",
      "titleKey": "rec.add_markdown_negotiation.title",
      "descriptionKey": "rec.add_markdown_negotiation.description",
      "howToKey": "rec.add_markdown_negotiation.howto",
      "howToStepKeys": null,
      "effort": "significant",
      "estimatedImpact": 5,
      "maxImpact": 5,
      "evidence": "plausible",
      "checkScore": 0,
      "checkDetails": "No Markdown for Agents support detected"
    },
    {
      "id": "add_open_graph",
      "priority": "high",
      "category": "structuredData",
      "titleKey": "rec.add_open_graph.title",
      "descriptionKey": "rec.add_open_graph.description",
      "howToKey": "rec.add_open_graph.howto",
      "howToStepKeys": null,
      "effort": "quick-win",
      "estimatedImpact": 4,
      "maxImpact": 4,
      "evidence": "plausible",
      "checkScore": 0,
      "checkDetails": "0/3 OG tags present"
    },
    {
      "id": "add_sitemap",
      "priority": "high",
      "category": "aiDiscoverability",
      "titleKey": "rec.add_sitemap.title",
      "descriptionKey": "rec.add_sitemap.description",
      "howToKey": "rec.add_sitemap.howto",
      "howToStepKeys": null,
      "effort": "quick-win",
      "estimatedImpact": 3.8,
      "maxImpact": 3.8,
      "evidence": "plausible",
      "checkScore": 0,
      "checkDetails": "No sitemap found"
    },
    {
      "id": "add_semantic_elements",
      "priority": "high",
      "category": "semanticHtml",
      "titleKey": "rec.add_semantic_elements.title",
      "descriptionKey": "rec.add_semantic_elements.description",
      "howToKey": "rec.add_semantic_elements.howto",
      "howToStepKeys": null,
      "effort": "moderate",
      "estimatedImpact": 2.8,
      "maxImpact": 3,
      "evidence": "plausible",
      "checkScore": 8,
      "checkDetails": "2 semantic elements, 77 divs (ratio: 3%)"
    },
    {
      "id": "add_llms_txt",
      "priority": "high",
      "category": "aiDiscoverability",
      "titleKey": "rec.add_llms_txt.title",
      "descriptionKey": "rec.add_llms_txt.description",
      "howToKey": "rec.add_llms_txt.howto",
      "howToStepKeys": null,
      "effort": "quick-win",
      "estimatedImpact": 2.5,
      "maxImpact": 2.5,
      "evidence": "speculative",
      "checkScore": 0,
      "checkDetails": "No llms.txt found"
    },
    {
      "id": "add_robots_txt",
      "priority": "high",
      "category": "aiDiscoverability",
      "titleKey": "rec.add_robots_txt.title",
      "descriptionKey": "rec.add_robots_txt.description",
      "howToKey": "rec.add_robots_txt.howto",
      "howToStepKeys": null,
      "effort": "quick-win",
      "estimatedImpact": 2.5,
      "maxImpact": 2.5,
      "evidence": "plausible",
      "checkScore": 0,
      "checkDetails": "No robots.txt found"
    },
    {
      "id": "add_content_signals",
      "priority": "high",
      "category": "aiDiscoverability",
      "titleKey": "rec.add_content_signals.title",
      "descriptionKey": "rec.add_content_signals.description",
      "howToKey": "rec.add_content_signals.howto",
      "howToStepKeys": null,
      "effort": "quick-win",
      "estimatedImpact": 2.5,
      "maxImpact": 2.5,
      "evidence": "speculative",
      "checkScore": 0,
      "checkDetails": "No Content-Signal found (robots.txt or HTTP headers)"
    },
    {
      "id": "fix_heading_hierarchy",
      "priority": "medium",
      "category": "semanticHtml",
      "titleKey": "rec.fix_heading_hierarchy.title",
      "descriptionKey": "rec.fix_heading_hierarchy.description",
      "howToKey": "rec.fix_heading_hierarchy.howto",
      "howToStepKeys": null,
      "effort": "quick-win",
      "estimatedImpact": 1.3,
      "maxImpact": 4.5,
      "evidence": "plausible",
      "checkScore": 70,
      "checkDetails": "no <h1>"
    },
    {
      "id": "remove_inline_styles",
      "priority": "medium",
      "category": "contentEfficiency",
      "titleKey": "rec.remove_inline_styles.title",
      "descriptionKey": "rec.remove_inline_styles.description",
      "howToKey": "rec.remove_inline_styles.howto",
      "howToStepKeys": null,
      "effort": "moderate",
      "estimatedImpact": 1,
      "maxImpact": 1,
      "evidence": "speculative",
      "checkScore": 0,
      "checkDetails": "9/169 elements with inline styles (5.3%)"
    }
  ],
  "llmsTxtPreview": "# accessibilityaaa.github.io\n\n> 買便當 mybanddown 提供免費純前端線上工具箱。收錄手寫發票營業稅計算、段考倒數計時、電子功德木魚、午餐決策轉盤、PDF 列印排版、圖片馬賽克與隨機點名分組。100% 本機處理不上傳。\n\n## Main\n- [買便當 mybanddown - 專為上班族與師生打造的免費線上工具箱](https://accessibilityaaa.github.io/mybanddown/index.html): 買便當 mybanddown 提供免費純前端線上工具箱。收錄手寫發票營業稅計算、段考倒數計時、電子功德木魚、午餐決策轉盤、PDF 列印排版、圖片馬賽克與隨機點名分組。100% 本機處理不上傳。\n- [首頁](https://accessibilityaaa.github.io/index.html)\n\n",
  "llmsTxtExisting": null,
  "emergingProtocols": {
    "oauthProtectedResource": {
      "exists": false,
      "url": "https://accessibilityaaa.github.io/.well-known/oauth-protected-resource"
    },
    "oauthDiscovery": {
      "exists": false,
      "url": "https://accessibilityaaa.github.io/.well-known/oauth-authorization-server"
    },
    "mcpServerCard": {
      "exists": false,
      "url": "https://accessibilityaaa.github.io/.well-known/mcp/server-card.json",
      "draft": true
    },
    "a2aAgentCard": {
      "exists": false,
      "url": "https://accessibilityaaa.github.io/.well-known/agent-card.json"
    },
    "apiCatalog": {
      "exists": false,
      "url": "https://accessibilityaaa.github.io/.well-known/api-catalog"
    },
    "agentSkills": {
      "exists": false,
      "url": "https://accessibilityaaa.github.io/.well-known/agent-skills/index.json",
      "draft": true
    },
    "count": 0,
    "total": 6
  },
  "botAccess": {
    "probed": true,
    "bot": "OAI-SearchBot",
    "controlStatus": 200,
    "botStatus": 200,
    "discriminates": false,
    "refusedAsBot": false,
    "edge": "Fastly",
    "verifiable": false,
    "detail": "This origin answers OAI-SearchBot exactly as it answers any other client (200). No edge-level filtering of AI crawlers observed."
  },
  "snippets": [
    {
      "id": "add_llms_txt",
      "title": "Create /llms.txt",
      "description": "Upload this file to your web root. It tells AI agents what your site is about and which pages matter.",
      "language": "markdown",
      "code": "# accessibilityaaa.github.io\n\n> 買便當 mybanddown 提供免費純前端線上工具箱。收錄手寫發票營業稅計算、段考倒數計時、電子功德木魚、午餐決策轉盤、PDF 列印排版、圖片馬賽克與隨機點名分組。100% 本機處理不上傳。\n\n## Main\n- [買便當 mybanddown - 專為上班族與師生打造的免費線上工具箱](https://accessibilityaaa.github.io/mybanddown/index.html): 買便當 mybanddown 提供免費純前端線上工具箱。收錄手寫發票營業稅計算、段考倒數計時、電子功德木魚、午餐決策轉盤、PDF 列印排版、圖片馬賽克與隨機點名分組。100% 本機處理不上傳。\n- [首頁](https://accessibilityaaa.github.io/index.html)\n\n",
      "filename": "/llms.txt"
    },
    {
      "id": "fix_heading_hierarchy",
      "title": "Fix heading hierarchy",
      "description": "Your page has no <h1>. Every page needs exactly one <h1> as the main heading. Add it inside your <main> or <article>.",
      "language": "html",
      "code": "<h1>買便當 mybanddown - 專為上班族與師生打造的免費線上工具箱</h1>",
      "filename": "<main> or <article>"
    },
    {
      "id": "add_open_graph",
      "title": "Add missing Open Graph tags",
      "description": "Open Graph tags control how your page looks when shared on social media and how AI platforms preview your URL in answers.",
      "language": "html",
      "code": "<meta property=\"og:title\" content=\"買便當 mybanddown - 專為上班族與師生打造的免費線上工具箱\">\n<meta property=\"og:description\" content=\"買便當 mybanddown 提供免費純前端線上工具箱。收錄手寫發票營業稅計算、段考倒數計時、電子功德木魚、午餐決策轉盤、PDF 列印排版、圖片馬賽克與隨機點名分組。100% 本機處理不上傳。\">\n<meta property=\"og:image\" content=\"https://yoursite.com/og-image.jpg\">\n<meta property=\"og:url\" content=\"https://accessibilityaaa.github.io/mybanddown/index.html\">\n<meta property=\"og:type\" content=\"website\">",
      "filename": "<head>",
      "stacks": [
        {
          "id": "html",
          "label": "HTML <head>",
          "language": "html",
          "filename": "<head>",
          "code": "<meta property=\"og:title\" content=\"買便當 mybanddown - 專為上班族與師生打造的免費線上工具箱\">\n<meta property=\"og:description\" content=\"買便當 mybanddown 提供免費純前端線上工具箱。收錄手寫發票營業稅計算、段考倒數計時、電子功德木魚、午餐決策轉盤、PDF 列印排版、圖片馬賽克與隨機點名分組。100% 本機處理不上傳。\">\n<meta property=\"og:image\" content=\"https://yoursite.com/og-image.jpg\">\n<meta property=\"og:url\" content=\"https://accessibilityaaa.github.io/mybanddown/index.html\">\n<meta property=\"og:type\" content=\"website\">"
        },
        {
          "id": "wordpress",
          "label": "WordPress",
          "language": "php",
          "filename": "functions.php",
          "code": "<?php\n// Quick Open Graph tags without a plugin (skip if Yoast / Rank Math is active)\nadd_action('wp_head', function () {\n    if (!is_singular()) return;\n    $post = get_queried_object();\n    $title = get_the_title($post);\n    $desc  = get_the_excerpt($post) ?: wp_trim_words(strip_tags($post->post_content), 30);\n    $image = get_the_post_thumbnail_url($post, 'large') ?: 'https://yoursite.com/og-image.jpg';\n    $url   = get_permalink($post);\n    printf('<meta property=\"og:title\" content=\"%s\">' . \"\\n\", esc_attr($title));\n    printf('<meta property=\"og:description\" content=\"%s\">' . \"\\n\", esc_attr($desc));\n    printf('<meta property=\"og:image\" content=\"%s\">' . \"\\n\", esc_url($image));\n    printf('<meta property=\"og:url\" content=\"%s\">' . \"\\n\", esc_url($url));\n    echo '<meta property=\"og:type\" content=\"article\">' . \"\\n\";\n}, 5);"
        },
        {
          "id": "nextjs",
          "label": "Next.js",
          "language": "typescript",
          "filename": "app/page.tsx",
          "code": "// Next.js App Router — Metadata API\nimport type { Metadata } from 'next';\n\nexport const metadata: Metadata = {\n  title: \"買便當 mybanddown - 專為上班族與師生打造的免費線上工具箱\",\n  description: \"買便當 mybanddown 提供免費純前端線上工具箱。收錄手寫發票營業稅計算、段考倒數計時、電子功德木魚、午餐決策轉盤、PDF 列印排版、圖片馬賽克與隨機點名分組。100% 本機處理不上傳。\",\n  openGraph: {\n    title: \"買便當 mybanddown - 專為上班族與師生打造的免費線上工具箱\",\n    description: \"買便當 mybanddown 提供免費純前端線上工具箱。收錄手寫發票營業稅計算、段考倒數計時、電子功德木魚、午餐決策轉盤、PDF 列印排版、圖片馬賽克與隨機點名分組。100% 本機處理不上傳。\",\n    url: \"https://accessibilityaaa.github.io/mybanddown/index.html\",\n    images: [\"https://yoursite.com/og-image.jpg\"],\n    type: 'website',\n  },\n};"
        }
      ]
    },
    {
      "id": "add_schema_org",
      "title": "Add Schema.org JSON-LD",
      "description": "Structured data helps AI agents understand the type, author, and purpose of your content.",
      "language": "html",
      "code": "<script type=\"application/ld+json\">\n{\n  \"@context\": \"https://schema.org\",\n  \"@type\": \"WebPage\",\n  \"name\": \"買便當 mybanddown - 專為上班族與師生打造的免費線上工具箱\",\n  \"description\": \"買便當 mybanddown 提供免費純前端線上工具箱。收錄手寫發票營業稅計算、段考倒數計時、電子功德木魚、午餐決策轉盤、PDF 列印排版、圖片馬賽克與隨機點名分組。100% 本機處理不上傳。\",\n  \"url\": \"https://accessibilityaaa.github.io/mybanddown/index.html\",\n  \"inLanguage\": \"zh-TW\",\n  \"author\": {\n    \"@type\": \"Person\",\n    \"name\": \"買便當 mybanddown\"\n  }\n}\n</script>",
      "filename": "<head>"
    },
    {
      "id": "add_robots_txt",
      "title": "Create /robots.txt",
      "description": "A robots.txt file tells crawlers (including AI bots) what they can and cannot access.",
      "language": "txt",
      "code": "User-agent: *\nAllow: /\n\nSitemap: https://accessibilityaaa.github.io/sitemap.xml",
      "filename": "/robots.txt"
    },
    {
      "id": "add_sitemap",
      "title": "Create /sitemap.xml",
      "description": "A sitemap helps AI agents discover all your pages. Most CMS platforms generate one automatically.",
      "language": "xml",
      "code": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<urlset xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\">\n  <url>\n    <loc>https://accessibilityaaa.github.io/mybanddown/index.html</loc>\n    <lastmod>2026-09-03</lastmod>\n  </url>\n</urlset>",
      "filename": "/sitemap.xml"
    },
    {
      "id": "add_content_signals",
      "title": "Add Content-Signal directives",
      "description": "Content-Signal tells AI agents how they may use your content. The canonical location is robots.txt, but you can also expose it as an HTTP header from any stack.",
      "language": "txt",
      "code": "User-agent: *\nContent-Signal: search=yes, ai-input=yes, ai-train=no",
      "filename": "/robots.txt",
      "stacks": [
        {
          "id": "robots",
          "label": "robots.txt",
          "language": "txt",
          "filename": "/robots.txt",
          "code": "User-agent: *\nContent-Signal: search=yes, ai-input=yes, ai-train=no"
        },
        {
          "id": "nginx",
          "label": "Nginx",
          "language": "nginx",
          "filename": "server block",
          "code": "# Inside your server { } block:\nadd_header Content-Signal \"search=yes, ai-input=yes, ai-train=no\" always;"
        },
        {
          "id": "apache",
          "label": "Apache",
          "language": "apache",
          "filename": ".htaccess",
          "code": "# In .htaccess (or VirtualHost):\nHeader set Content-Signal \"search=yes, ai-input=yes, ai-train=no\""
        },
        {
          "id": "wordpress",
          "label": "WordPress",
          "language": "php",
          "filename": "functions.php",
          "code": "<?php\n// In your theme's functions.php or a small mu-plugin\nadd_action('send_headers', function () {\n    header('Content-Signal: search=yes, ai-input=yes, ai-train=no');\n});\n\n// Optional: also append the directive to the dynamic robots.txt\nadd_filter('robots_txt', function ($output) {\n    return $output . \"\\nContent-Signal: search=yes, ai-input=yes, ai-train=no\\n\";\n}, 10, 1);"
        },
        {
          "id": "nextjs",
          "label": "Next.js",
          "language": "typescript",
          "filename": "middleware.ts",
          "code": "// middleware.ts (Next.js 13+ App Router or Pages Router)\nimport { NextResponse } from 'next/server';\nexport function middleware() {\n  const res = NextResponse.next();\n  res.headers.set(\n    'Content-Signal',\n    'search=yes, ai-input=yes, ai-train=no'\n  );\n  return res;\n}\nexport const config = { matcher: '/:path*' };"
        },
        {
          "id": "cloudflare",
          "label": "Cloudflare Workers",
          "language": "javascript",
          "filename": "worker.js",
          "code": "// Cloudflare Worker that proxies your origin and adds the header\nexport default {\n  async fetch(request, env, ctx) {\n    const res = await fetch(request);\n    const newRes = new Response(res.body, res);\n    newRes.headers.set(\n      'Content-Signal',\n      'search=yes, ai-input=yes, ai-train=no'\n    );\n    return newRes;\n  },\n};"
        },
        {
          "id": "express",
          "label": "Express / Fastify",
          "language": "javascript",
          "filename": "server.js",
          "code": "// Express\napp.use((req, res, next) => {\n  res.setHeader('Content-Signal', 'search=yes, ai-input=yes, ai-train=no');\n  next();\n});\n\n// Fastify\nfastify.addHook('onSend', (request, reply, payload, done) => {\n  reply.header('Content-Signal', 'search=yes, ai-input=yes, ai-train=no');\n  done();\n});"
        }
      ]
    },
    {
      "id": "add_markdown_negotiation",
      "title": "Support Markdown for Agents",
      "description": "Let AI agents request a clean Markdown version of any page via content negotiation, .md alternate URLs, link tags or Link headers.",
      "language": "html",
      "code": "<!-- Mechanism 3: link tag advertising the .md alternate -->\n<link rel=\"alternate\" type=\"text/markdown\" href=\"/page.md\">",
      "filename": "<head>",
      "stacks": [
        {
          "id": "html",
          "label": "HTML <head>",
          "language": "html",
          "filename": "<head>",
          "code": "<!-- Mechanism 3: link tag advertising the .md alternate -->\n<link rel=\"alternate\" type=\"text/markdown\" href=\"/page.md\">"
        },
        {
          "id": "express",
          "label": "Express",
          "language": "javascript",
          "filename": "server.js",
          "code": "// Mechanisms 1 + 4: content negotiation + Link header\napp.get('/page', (req, res) => {\n  res.setHeader('Vary', 'Accept');\n  res.setHeader('Link', '</page.md>; rel=\"alternate\"; type=\"text/markdown\"');\n  if ((req.headers.accept || '').includes('text/markdown')) {\n    res.type('text/markdown; charset=utf-8');\n    return res.send(renderMarkdown('page'));\n  }\n  res.render('page');\n});"
        },
        {
          "id": "fastify",
          "label": "Fastify",
          "language": "javascript",
          "filename": "server.js",
          "code": "// Mechanisms 1 + 4: content negotiation + Link header\nfastify.get('/page', async (req, reply) => {\n  reply.header('Vary', 'Accept');\n  reply.header('Link', '</page.md>; rel=\"alternate\"; type=\"text/markdown\"');\n  if ((req.headers.accept || '').includes('text/markdown')) {\n    return reply.type('text/markdown; charset=utf-8').send(renderMarkdown('page'));\n  }\n  return reply.view('/page.ejs');\n});"
        },
        {
          "id": "nextjs",
          "label": "Next.js",
          "language": "typescript",
          "filename": "app/page/route.ts",
          "code": "// Next.js App Router — Route Handler returning Markdown\nimport { NextRequest } from 'next/server';\nimport { renderMarkdown } from '@/lib/md';\nexport async function GET(req: NextRequest) {\n  const accept = req.headers.get('accept') || '';\n  if (accept.includes('text/markdown')) {\n    return new Response(await renderMarkdown('page'), {\n      headers: {\n        'Content-Type': 'text/markdown; charset=utf-8',\n        'Vary': 'Accept',\n      },\n    });\n  }\n  // Fall through to the page component\n  return new Response(null, { status: 404 });\n}"
        },
        {
          "id": "wordpress",
          "label": "WordPress",
          "language": "php",
          "filename": "functions.php",
          "code": "<?php\n// Mechanism 1: respond to Accept: text/markdown on the same URL\nadd_action('template_redirect', function () {\n    if (!is_singular()) return;\n    $accept = $_SERVER['HTTP_ACCEPT'] ?? '';\n    if (strpos($accept, 'text/markdown') === false) return;\n    header('Content-Type: text/markdown; charset=utf-8');\n    header('Vary: Accept');\n    $post = get_queried_object();\n    echo \"# \" . get_the_title($post) . \"\\n\\n\";\n    echo wp_strip_all_tags(apply_filters('the_content', $post->post_content));\n    exit;\n});"
        },
        {
          "id": "static",
          "label": "Hugo / Jekyll / Astro",
          "language": "txt",
          "filename": "static/page.md",
          "code": "# Mechanism 2: serve .md alongside .html\n# Hugo: place page.md in /static/ — built unchanged\n# Jekyll: drop page.md in /assets/ — copied as-is\n# Astro: src/pages/page.md.ts that exports a GET returning markdown\n\n# Then advertise with mechanism 3 in <head>:\n#   <link rel=\"alternate\" type=\"text/markdown\" href=\"/page.md\">"
        }
      ]
    }
  ]
}

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