{ "@context": "https://schema.org", "@type": "Article", "schema_version": "1.1", "content_item_id": "guide-technical-access-for-crawlers.en", "translation_group_id": "guide-technical-access-for-crawlers", "locale": "en", "type": "guide", "section": "knowledge", "slug": "technical-access-for-crawlers", "title": "Technical accessibility for search and AI crawlers", "description": "HTML, HTTP, robots, sitemaps, and locales as a testable technical contract.", "direct_answer": "Core material should be available in server HTML, URLs should return truthful status codes, and canonical, hreflang, sitemaps, and robots should match the real site structure. This removes barriers for compliant crawlers. It does not guarantee crawling, indexing, retrieval, or citation; private data must be protected with access control, not robots.txt.", "sections": [ { "heading": "1. Source HTML", "paragraphs": [ "The heading, direct answer, date, navigation, and core text should be in server HTML. JavaScript may add Pagefind or filters, but the page must not disappear when scripts are disabled. Check with curl on the final URL, view source, and open with JavaScript disabled." ], "source_ids": [ "google-crawl" ] }, { "heading": "2. Status codes and redirects", "paragraphs": [ "A live URL returns 200. A permanent move returns 301 and leads to a real equivalent; a removed document must not become an empty 200. Check the chain with -I and a final GET because a redirect header alone says nothing about the quality of final HTML." ], "source_ids": [ "google-crawl" ] }, { "heading": "3. Robots is not a lock", "paragraphs": [ "robots.txt is a public hint to a cooperative bot. A client may ignore it, and URLs or data may be discovered elsewhere. Protect ops panels, logs, and drafts with Basic Auth, VPN, or application auth. Record policies separately for search crawlers, training crawlers, and user-triggered fetchers." ], "source_ids": [ "google-crawl" ] }, { "heading": "4. Sitemap and internal graph", "paragraphs": [ "A sitemap helps discovery but does not replace links between articles. Include only canonical public pages; exclude search, JSON sidecars, quarantine, and ops. Verify that every sitemap URL exists, has one canonical, and is not a soft 404." ], "source_ids": [ "google-crawl" ] }, { "heading": "5. Language versions", "paragraphs": [ "RU and EN use separate URLs and self-canonicals. Each head contains reciprocal hreflang and x-default to an explicit language chooser. Translation must not change numbers, period, strength of conclusion, or source list. Check parity automatically using claim IDs and dataThrough." ], "source_ids": [ "google-crawl" ] }, { "heading": "6. Release-check scenario", "paragraphs": [ "After build, curl apex and www, check HTTPS and redirect chain, then robots, all sitemaps, RSS, JSON-LD, and sidecars. Open a representative guide with JavaScript disabled and at 320px width. Save results as release artifacts so rollback is verifiable rather than a manual memory." ], "source_ids": [ "google-crawl" ] }, { "heading": "7. Bot identity", "paragraphs": [ "A User-Agent is a client assertion. Analytics should mark a bot confirmed only when it matches official IP or DNS verification where the operator publishes it. OAI-SearchBot, GPTBot, and ChatGPT-User must not be collapsed into one category. A visit proves a request, not a citation." ], "source_ids": [ "google-crawl" ] }, { "heading": "8. What success means", "paragraphs": [ "A successful technical release means accessible HTML, correct statuses, working canonical/hreflang/sitemaps, and no ops leakage. It does not mean a search engine must crawl the URL or an answer engine must display it. Actual visibility is measured with a separate panel of saved answers." ], "source_ids": [ "google-crawl" ] }, { "heading": "9. A pre-publication check table", "paragraphs": [ "Run checks in sequence. First confirm that the URL returns 200 and serves the core text in HTML. Compare canonical with the actual address, put only the public canonical in the sitemap, and verify an internal link from an already reachable page. For bilingual material compare claim IDs, numbers, dataThrough period, and strength of conclusion. Finally open the page without JavaScript and verify that operational routes are protected by authentication. Record pass, fail, or not applicable rather than a simple green tick. This log supports rollback and explains why a URL was or was not released." ], "source_ids": [ "google-crawl", "google-ai-search" ] }, { "heading": "10. Common failures and recovery", "paragraphs": [ "If a soft 404 appears after release, do not fix it by adding empty text: restore an equivalent document or return a correct 410. If the sitemap contains an old address, update the index and check final URLs, not only the file. If RU and EN diverge on a number or source, quarantine both versions until corrected, even if one is technically reachable. If a bot requests a protected path, check authentication and logs rather than exposing the route through robots. Every failure should retain its cause, affected URL, fix version, and repeat check." ], "source_ids": [ "google-crawl" ] }, { "heading": "11. The boundary of technical readiness", "paragraphs": [ "Accessible HTML, permitted crawling, and a correct sitemap make a document discoverable, but do not make it a required source. Indexing, retrieval, citation, and referral are separate events. A readiness report should therefore end with the next observation, not a promise: which URLs will be checked, with which question, in which locale, and when. If an operator changes its interface or crawl rules, the baseline becomes a historical slice and should be labeled as such." ], "source_ids": [ "google-crawl", "openai-bots" ] }, { "heading": "12. A diagnostic order", "paragraphs": [ "Diagnose from cheap checks to expensive ones. Request the final URL first and inspect HTML, status, and canonical. Then inspect robots and the sitemap, followed by internal links and language alternates. Only after the technical layer is sound should you ask questions on an AI surface and assess visible sources. Starting with an answer observation can make a technical defect look editorial. Link every defect to its URL, expected behavior, actual response, and fix version." ], "source_ids": [ "google-crawl", "google-ai-search" ] } ], "published_at": "2026-09-11", "modified_at": "2026-09-11", "data_through": "2026-09-11", "next_review_at": "2026-10-11", "author": "GeoAeoAle Editorial", "origin": "editorial", "publisher": "GeoAeoAle Editorial", "license": "https://creativecommons.org/licenses/by/4.0/", "canonical_url": "https://geoaeoale.com/en/knowledge/technical-access-for-crawlers/", "claims": [ { "claim_id": "access-robots-boundary", "text": "robots.txt gives instructions to compliant crawlers but does not protect private data.", "status": "observed", "confidence": "high", "source_ids": [ "google-robots" ], "publication_status": "public", "confidentiality": "public" }, { "claim_id": "access-html-first", "text": "Meaningful content available without mandatory JavaScript reduces a processing barrier.", "status": "inference", "confidence": "medium", "source_ids": [ "google-crawl", "google-ai-optimization" ], "publication_status": "public", "confidentiality": "public" } ], "sources": [ { "source_id": "google-crawl", "canonical_url": "https://developers.google.com/search/docs/essentials/technical", "title": "Google Search technical requirements", "publisher": "Google Search Central", "source_type": "official", "locale": "en", "published_at": null, "checked_at": "2026-09-11", "sha256": "5fff9bd0dd8ef5fe14fdbc1b7debbf79ef3b8b6b507b21b87ac5e62b2ba25b30", "license": "Source terms apply", "visibility": "public" }, { "source_id": "google-robots", "canonical_url": "https://developers.google.com/search/docs/crawling-indexing/robots/intro", "title": "Introduction to robots.txt", "publisher": "Google Search Central", "source_type": "official", "locale": "en", "published_at": null, "checked_at": "2026-09-11", "sha256": "549549689880625483238eea25463220d4ca54d96bfde30360343966cb4ac6ea", "license": "Source terms apply", "visibility": "public" }, { "source_id": "google-sitemap", "canonical_url": "https://developers.google.com/search/docs/crawling-indexing/sitemaps/build-sitemap", "title": "Build and submit a sitemap", "publisher": "Google Search Central", "source_type": "official", "locale": "en", "published_at": null, "checked_at": "2026-09-11", "sha256": "afdfdcbe03e599926c59df17e2e5dfd48cdc40f84bac24e0f1e8b7f8308c543f", "license": "Source terms apply", "visibility": "public" }, { "source_id": "google-multilingual", "canonical_url": "https://developers.google.com/search/docs/specialty/international/managing-multi-regional-sites", "title": "Managing multi-regional and multilingual sites", "publisher": "Google Search Central", "source_type": "official", "locale": "en", "published_at": null, "checked_at": "2026-09-11", "sha256": "3ba02c21b18b4ed5ec4ff4869db6a2713ce9a1c05294bb78e7c49c3e786c8918", "license": "Source terms apply", "visibility": "public" }, { "source_id": "google-ai-search", "canonical_url": "https://developers.google.com/search/docs/appearance/ai-features", "title": "Top ways to ensure your content performs well in Google's AI experiences", "publisher": "Google Search Central", "source_type": "official", "locale": "en", "published_at": null, "checked_at": "2026-09-11", "sha256": "c6b267ed42c26ee63151c87d27de45d8882a5b7dc77c3d3dece510b21d63c300", "license": "Source terms apply", "visibility": "public" }, { "source_id": "openai-bots", "canonical_url": "https://developers.openai.com/api/docs/bots", "title": "Overview of OpenAI crawlers", "publisher": "OpenAI Developers", "source_type": "official", "locale": "en", "published_at": null, "checked_at": "2026-09-11", "sha256": "ccbdef3018bd08dceaacb7fe0ea07a2020d25e201ab84aa44625827aac925440", "license": "Source terms apply", "visibility": "public" }, { "source_id": "perplexity-bots", "canonical_url": "https://docs.perplexity.ai/docs/resources/perplexity-crawlers", "title": "Perplexity crawlers", "publisher": "Perplexity Docs", "source_type": "official", "locale": "en", "published_at": null, "checked_at": "2026-09-11", "sha256": "75930d803650ae046c37ed3529840f7cbf1a6599c1bf2e41cc70bf83cc5b6470", "license": "Source terms apply", "visibility": "public" } ], "related_slugs": [ "crawler", "indexability", "robots-txt", "sitemap", "structured-data" ], "limitations": [ "HTTP 200 and permitted robots show access, not guaranteed indexing, retrieval, or citation.", "Before release, check the page as an ordinary client: curl with a normal User-Agent and a browser with JavaScript disabled. The title, main text, date, links, and tables must be in HTML. Also test trailing slash, www, and an invalid URL so redirects and 404 behavior are predictable.", "Public reachability must not expose private material. Protect secrets, logs, queues, and drafts with authentication; robots.txt is insufficient. After deployment, compare public URLs with the sitemap and sidecar registry and check HTML for accidental internal paths." ], "corrections": [] }