AI crawler policy › domain suffix

AI crawler blocking on .biz sites

Latest sealed date 2026-08-07.

The panel contains 216 .biz domains. On 2026-08-07, 70 of them served a robots.txt we could parse; 117 could not be reached at all and have no observed policy. Of the parsed ones, 12 (17.1%) name at least one tracked AI crawler and 12 (17.1%) block at least one site-wide. 4 block every crawler via the wildcard group, counted separately.

In the latest sealed reading for .biz on 2026-08-07, 29 tracked crawler tokens were named by at least one observed file: GPTBot: 12 named, 12 blocked site-wide; Amazonbot: 11 named, 11 blocked site-wide; ClaudeBot: 11 named, 11 blocked site-wide; Bytespider: 10 named, 10 blocked site-wide; CCBot: 10 named, 10 blocked site-wide; Applebot-Extended: 9 named, 9 blocked site-wide; Google-Extended: 9 named, 9 blocked site-wide; meta-externalagent: 8 named, 8 blocked site-wide; ChatGPT-User: 4 named, 4 blocked site-wide; anthropic-ai: 3 named, 3 blocked site-wide; ImagesiftBot: 3 named, 3 blocked site-wide; omgili: 3 named, 3 blocked site-wide; PerplexityBot: 3 named, 3 blocked site-wide; AI2Bot: 2 named, 2 blocked site-wide; Claude-SearchBot: 2 named, 1 blocked site-wide; Claude-Web: 2 named, 2 blocked site-wide; cohere-ai: 2 named, 2 blocked site-wide; cohere-training-data-crawler: 2 named, 2 blocked site-wide; Diffbot: 2 named, 2 blocked site-wide; FacebookBot: 2 named, 2 blocked site-wide; omgilibot: 2 named, 2 blocked site-wide; Timpibot: 2 named, 2 blocked site-wide; Claude-User: 1 named, 1 blocked site-wide; DuckAssistBot: 1 named, 1 blocked site-wide; meta-externalfetcher: 1 named, 1 blocked site-wide; MistralAI-User: 1 named, 1 blocked site-wide; OAI-SearchBot: 1 named, 1 blocked site-wide; PanguBot: 1 named, 1 blocked site-wide; Perplexity-User: 1 named, 1 blocked site-wide. Each entry keeps the named count before the fully-blocked count. A tracked token absent from the list had zero observed mentions; the counts describe file declarations, not crawler behavior.

What "suffix" means here. The final DNS label, not the effective top-level domain. A .co.uk site is counted under .uk. Computing a true effective TLD needs the Public Suffix List, which this surface does not ship, and approximating one would put a wrong denominator under every figure on this page.

Every tracked crawler on .biz

CrawlerOperatorNames itBlocks outright% of parsed
GPTBotOpenAI121217.1%
AmazonbotAmazon111115.7%
ClaudeBotAnthropic111115.7%
BytespiderByteDance101014.3%
CCBotCommon Crawl101014.3%
Applebot-ExtendedApple9912.9%
Google-ExtendedGoogle9912.9%
meta-externalagentMeta8811.4%
ChatGPT-UserOpenAI445.7%
anthropic-aiAnthropic334.3%
ImagesiftBotImageSift334.3%
omgiliWebz.io334.3%
PerplexityBotPerplexity334.3%
AI2BotAi2222.9%
Claude-SearchBotAnthropic211.4%
Claude-WebAnthropic222.9%
cohere-aiCohere222.9%
cohere-training-data-crawlerCohere222.9%
DiffbotDiffbot222.9%
FacebookBotMeta222.9%
omgilibotWebz.io222.9%
TimpibotTimpi222.9%
Claude-UserAnthropic111.4%
DuckAssistBotDuckDuckGo111.4%
meta-externalfetcherMeta111.4%
MistralAI-UserMistral111.4%
OAI-SearchBotOpenAI111.4%
PanguBotHuawei111.4%
Perplexity-UserPerplexity111.4%

Blocks outright — the file has a group for that exact product token containing Disallow: / with no overriding allow. Partly restricts — a group exists with at least one non-empty Disallow, but not the whole site. Names & allows — a group exists with no effective Disallow. Everything else is not mentioned: the wildcard * group governs it, and wildcard effects are counted separately rather than folded in, because a site that blocks everything has not made a decision about any AI crawler in particular. Matching is exact and case-insensitive per RFC 9309 — never substring.

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14 newest sealed readings for .biz

For each date, the table keeps the panel count beside the parseable robots.txt denominator, the sites naming or blocking a tracked AI crawler, and wildcard blocks. Unreachable or unusable responses are excluded rather than treated as permissive. These are aggregate observations of published files, not crawler behavior or the intent behind a declaration.

Across the 14 sealed readings shown for .biz, the newest recorded 70 domains publishing a parseable robots.txt, against an observed low of 68 on 2026-08-01 and a high of 71 on 2026-07-30. In the newest reading, 12 named at least one tracked AI crawler (range 11 on 2026-08-01 to 13 on 2026-07-31), while 12 blocked at least one (range 10 on 2026-08-01 to 12 on 2026-08-07). These are aggregate observations of published files. A movement can reflect changed fetch coverage as well as a changed file; it does not describe motive or crawler behavior.

Sealed datePanel domainsParsedNames anyBlocks anyWildcard block
2026-08-072167012124
2026-08-062166911114
2026-08-052166911114
2026-08-042166911114
2026-08-032167012114
2026-08-022167012114
2026-08-012166811104
2026-07-312167013124
2026-07-302167113124
2026-07-292167113124
2026-07-282167113124
2026-07-272167113124
2026-07-262167113124
2026-07-252167113124
Read this before quoting a trend. We hold 55 sealed daily snapshots between 2026-06-09 and 2026-08-07, out of 60 calendar days. 5 calendar day(s) inside that span have no collection run at all: 2026-06-11, 2026-06-12, 2026-06-19, 2026-07-04, 2026-07-15. Consecutive rows in every table below are consecutive SEALED dates, not consecutive days — where a gap falls, that row's diff covers more than 24 hours, and the span is printed with it. We do not interpolate across a day we did not collect.

Observed AI-crawler verdict changes on .biz

Across the sealed archive, 66 crawler-verdict transitions were attributed to .biz domains on 9 sealed change dates. The newest aggregate movements are listed below; no domain name or fetched file body is published.

Sealed dateCrawlerVerdict movedDomains
2026-07-30Applebot-Extendednot mentioned → blocked outright1
2026-07-30Bytespidernot mentioned → blocked outright1
2026-07-30CCBotnot mentioned → blocked outright1
2026-07-30ClaudeBotnot mentioned → blocked outright1
2026-07-30Google-Extendednot mentioned → blocked outright1
2026-07-30GPTBotnot mentioned → blocked outright1
2026-07-30meta-externalagentnot mentioned → blocked outright1
2026-07-21Amazonbotblocked outright → not mentioned1
2026-07-21Applebot-Extendedblocked outright → not mentioned1
2026-07-21Bytespiderblocked outright → not mentioned1
2026-07-21CCBotblocked outright → not mentioned1
2026-07-21ClaudeBotblocked outright → not mentioned1
2026-07-21Google-Extendedblocked outright → not mentioned1
2026-07-21GPTBotblocked outright → not mentioned1
2026-07-21meta-externalagentblocked outright → not mentioned1
2026-07-20Amazonbotnot mentioned → blocked outright1
2026-07-20Applebot-Extendednot mentioned → blocked outright1
2026-07-20Bytespidernot mentioned → blocked outright1
2026-07-20CCBotnot mentioned → blocked outright1
2026-07-20ClaudeBotnot mentioned → blocked outright1
2026-07-20Google-Extendednot mentioned → blocked outright1
2026-07-20GPTBotnot mentioned → blocked outright1
2026-07-20meta-externalagentnot mentioned → blocked outright1
2026-07-11Claude-SearchBotnot mentioned → named and allowed1
2026-07-05AI2Botblocked outright → not mentioned1
2026-07-05Diffbotblocked outright → not mentioned1
2026-07-05DuckAssistBotblocked outright → not mentioned1
2026-07-05FacebookBotblocked outright → not mentioned1
2026-07-05Timpibotblocked outright → not mentioned1
2026-07-03Amazonbotnamed and allowed → blocked outright1
2026-07-03Applebot-Extendednamed and allowed → blocked outright1
2026-07-03Bytespidernamed and allowed → blocked outright1
2026-07-03Google-Extendednamed and allowed → blocked outright1
2026-07-02AI2Botnot mentioned → blocked outright1
2026-07-02Amazonbotblocked outright → named and allowed1
2026-07-02Applebot-Extendedblocked outright → named and allowed1
2026-07-02Bytespiderblocked outright → named and allowed1
2026-07-02Diffbotnot mentioned → blocked outright1
2026-07-02DuckAssistBotnot mentioned → blocked outright1
2026-07-02FacebookBotnot mentioned → blocked outright1

Compiled from each site's own published /robots.txt, /ai.txt, /llms.txt and /.well-known/tdmrep.json, fetched daily over a frozen 100,000-domain research panel (source list: Tranco; no Tranco rank is republished here). Verdicts are mechanical readings of what those files say under RFC 9309 grouping with exact product-token matching — they are not legal advice, not a statement about any site's intentions, and not a claim about what any crawler actually did. A robots.txt is a request, not an access control. Figures are provided for informational purposes only and carry no warranty of accuracy or completeness.

AI crawler policy home · What changed · How this is collected · US Tech Automations.