https://spyonweb.net

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    "title": "SpyOnWeb — Domain Intelligence & Reverse Lookup Tool",
    "excerpt": "Find domain relationships, shared Analytics & AdSense codes, IP addresses, nameservers and web technologies. Free reverse lookup tool.",
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    "siteName": "SpyOnWeb",
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          "description": "Find domain relationships, shared Analytics & AdSense codes, IP addresses, nameservers and web technologies. Free reverse lookup tool.",
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  "markdown": "## Map the digital footprint of any domain.\n\nSpyOnWeb cross-references domains, Analytics snippets, AdSense publishers, nameservers and IP addresses to surface relationships you would otherwise miss, in seconds.\n\n444,738 Domains\n\n223,637 Analytics\n\n53,152 AdSense\n\n96,905 Nameservers\n\n292,484 IPs\n\n25 Technologies\n\n387,800 SSL Active\n\n### Fast reconnaissance\n\nEnter a domain or identifier and get its related assets back in real time. Good for security assessments, competitor research or due diligence.\n\n### Context you can act on\n\nSee shared Analytics, AdSense, nameservers and historic IPs in one view, so you can spot reused infrastructure and see which domains are connected.\n\n### Monitor & get alerts\n\nSign up free and watch up to 3 domains or codes. We email you when the SSL, title or an identifier changes. Nothing to install, no card required.\n\n## Try a lookup\n\nClick any domain to see its relationships, IPs, technologies and certificates.\n\n[github.com](https://spyonweb.net/domain/github.com) [stripe.com](https://spyonweb.net/domain/stripe.com) [shopify.com](https://spyonweb.net/domain/shopify.com) [cloudflare.com](https://spyonweb.net/domain/cloudflare.com) [wordpress.org](https://spyonweb.net/domain/wordpress.org) [vercel.com](https://spyonweb.net/domain/vercel.com) [notion.so](https://spyonweb.net/domain/notion.so) [figma.com](https://spyonweb.net/domain/figma.com)\n\n[password.es](https://spyonweb.net/domain/password.es) [stackscale.com](https://spyonweb.net/domain/stackscale.com) [mboxviewer.net](https://spyonweb.net/domain/mboxviewer.net) [colorvivo.com](https://spyonweb.net/domain/colorvivo.com)\n\n## Start free today\n\nWatch up to 3 domains or codes and get email alerts the moment something changes. Nothing to install, no card required.\n\n[Sign up free](https://spyonweb.net/account/register)\n",
  "fullPageMarkdown": "SpyOnWeb — Domain Intelligence & Reverse Lookup Tool\n\n[SpyOnWeb](https://spyonweb.net/)\n\n[Log in](https://spyonweb.net/account/login) [Sign up](https://spyonweb.net/account/register) Language English Español\n\n[Log in](https://spyonweb.net/account/login) [Sign up](https://spyonweb.net/account/register)\n\n☾ Toggle color theme English Español\n\n# Map the digital footprint of any domain.\n\nSpyOnWeb cross-references domains, Analytics snippets, AdSense publishers, nameservers and IP addresses to surface relationships you would otherwise miss, in seconds.\n\nLookup query  Search\n\nExamples: stackscale.com, UA-123456-1, pub-1234567890123456, ns1.example.net\n\n[Sign up free](https://spyonweb.net/account/register) Watch 3 domains and get alerts when they change. No card.\n\n444,738 Domains\n\n223,637 Analytics\n\n53,152 AdSense\n\n96,905 Nameservers\n\n292,484 IPs\n\n25 Technologies\n\n387,800 SSL Active\n\n### Fast reconnaissance\n\nEnter a domain or identifier and get its related assets back in real time. Good for security assessments, competitor research or due diligence.\n\n### Context you can act on\n\nSee shared Analytics, AdSense, nameservers and historic IPs in one view, so you can spot reused infrastructure and see which domains are connected.\n\n### Monitor & get alerts\n\nSign up free and watch up to 3 domains or codes. We email you when the SSL, title or an identifier changes. Nothing to install, no card required.\n\n## Try a lookup\n\nClick any domain to see its relationships, IPs, technologies and certificates.\n\n[github.com](https://spyonweb.net/domain/github.com) [stripe.com](https://spyonweb.net/domain/stripe.com) [shopify.com](https://spyonweb.net/domain/shopify.com) [cloudflare.com](https://spyonweb.net/domain/cloudflare.com) [wordpress.org](https://spyonweb.net/domain/wordpress.org) [vercel.com](https://spyonweb.net/domain/vercel.com) [notion.so](https://spyonweb.net/domain/notion.so) [figma.com](https://spyonweb.net/domain/figma.com)\n\n[password.es](https://spyonweb.net/domain/password.es) [stackscale.com](https://spyonweb.net/domain/stackscale.com) [mboxviewer.net](https://spyonweb.net/domain/mboxviewer.net) [colorvivo.com](https://spyonweb.net/domain/colorvivo.com)\n\n## Start free today\n\nWatch up to 3 domains or codes and get email alerts the moment something changes. Nothing to install, no card required.\n\n[Sign up free](https://spyonweb.net/account/register)\n",
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  "llmsTxtPreview": "# SpyOnWeb\n\n> Find domain relationships, shared Analytics & AdSense codes, IP addresses, nameservers and web technologies. Free reverse lookup tool.\n\n## Documentation\n- [FAQ](https://spyonweb.net/faq)\n\n## Main\n- [SpyOnWeb — Domain Intelligence & Reverse Lookup Tool](https://spyonweb.net): Find domain relationships, shared Analytics & AdSense codes, IP addresses, nameservers and web technologies. Free rever…\n- [About Us](https://spyonweb.net/about)\n- [Pricing](https://spyonweb.net/pricing)\n- [SpyOnWeb](https://spyonweb.net/)\n- [Top Lists](https://spyonweb.net/top)\n- [Log in](https://spyonweb.net/account/login)\n- [Sign up](https://spyonweb.net/account/register)\n\n## Legal\n- [Privacy](https://spyonweb.net/privacy)\n- [Terms](https://spyonweb.net/terms)\n\n## Support\n- [FAQ](https://spyonweb.net/faq)\n\n",
  "llmsTxtExisting": "# SpyOnWeb — Domain Intelligence Platform\n\n> SpyOnWeb is a domain intelligence tool that reveals relationships between websites through shared Analytics codes, AdSense publishers, IP addresses, nameservers, SSL certificates and web technologies.\n\n## Main Pages\n\n- [Home](https://spyonweb.net/): Search any domain, IP, or identifier\n- [About](https://spyonweb.net/about): Platform overview and capabilities\n- [FAQ](https://spyonweb.net/faq): Common questions answered\n- [Top Rankings](https://spyonweb.net/top): Most prevalent technologies, SSL issuers, analytics codes\n\n## Lookup Types\n\n- Domain profile: `/domain/{name}` — Full domain report with IP, technologies, associations\n- IP lookup: `/ip/{address}` — All domains hosted on an IP address\n- Analytics: `/analytics/{code}` — Domains sharing a Google Analytics code\n- AdSense: `/adsense/{code}` — Domains from the same AdSense publisher\n- Nameserver: `/nameserver/{ns}` — Domains delegated to a DNS nameserver\n- Technology: `/technology/{name}` — Domains using a specific technology\n- SSL Issuer: `/ssl/{issuer}` — Domains with certificates from an issuer\n\n## API\n\nJSON API available at `/api/v1/` for programmatic access. API keys generated from user dashboard.",
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    "controlStatus": 200,
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    "discriminates": false,
    "refusedAsBot": false,
    "edge": "Cloudflare",
    "verifiable": false,
    "detail": "This origin answers OAI-SearchBot exactly as it answers any other client (200). No edge-level filtering of AI crawlers observed."
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  "snippets": [
    {
      "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\">"
        }
      ]
    }
  ]
}

Use our API to get this programmatically (coming soon)