Which sites block meta-externalagent?

Meta · declared purpose: model training · latest sealed date 2026-08-07.

On 2026-08-07, 7,784 of the 61,552 panel domains that served a parseable robots.txt name meta-externalagent explicitly. 6,743 of them (11.0% of parsed) disallow it from the entire site, 543 restrict it to part of the site, and 498 name it and allow it. The remaining 53,768 parsed domains do not mention it at all — their wildcard group governs it.

What the denominator is. On 2026-08-07 we attempted /robots.txt on 100,000 panel domains. 24,130 could not be reached at all (DNS failure, TLS failure, timeout, refused connection) and 14,318 answered with something other than a 200. Both of those groups have no observed AI-crawler policy, and neither is counted as allowing anything — an unreachable site is UNKNOWN, not permissive. Every crawler figure below is out of the 61,552 domains that returned a robots.txt we could parse on that date.

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.

Get told when meta-externalagent change their AI crawler rules

Sites publish today's robots.txt and overwrite it — no archive, no history, no notification. We keep a dated daily copy. Leave your email and we'll send you what moved for meta-externalagent: who started blocking, who stopped, and on which day.

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What moved: meta-externalagent verdict changes

Counted domains whose robots.txt changed what meta-externalagent may do, between one sealed date and the previous one. Aggregate only — we do not publish which site.

Across the whole archive: 2,133 meta-externalagent verdict transitions, of which 1,053 moved TO a full block and 500 moved AWAY from one.

Sealed date	Verdict moved	Domains
2026-08-07	not mentioned → blocked outright	34
2026-08-07	blocked outright → not mentioned	9
2026-08-07	not mentioned → named and allowed	4
2026-08-07	not mentioned → partly restricted	2
2026-08-07	named and allowed → blocked outright	2
2026-08-07	partly restricted → not mentioned	1
2026-08-07	blocked outright → partly restricted	1
2026-08-07	named and allowed → not mentioned	1
2026-08-06	not mentioned → blocked outright	17
2026-08-06	not mentioned → named and allowed	5
2026-08-06	blocked outright → not mentioned	5
2026-08-06	partly restricted → not mentioned	1
2026-08-06	named and allowed → blocked outright	1
2026-08-05	not mentioned → blocked outright	19
2026-08-05	blocked outright → not mentioned	9
2026-08-05	not mentioned → partly restricted	1
2026-08-05	not mentioned → named and allowed	1
2026-08-05	named and allowed → not mentioned	1
2026-08-05	named and allowed → partly restricted	1
2026-08-04	not mentioned → blocked outright	21
2026-08-04	blocked outright → not mentioned	12
2026-08-04	not mentioned → partly restricted	6
2026-08-04	named and allowed → partly restricted	3
2026-08-04	partly restricted → not mentioned	1
2026-08-04	blocked outright → partly restricted	1
2026-08-03	not mentioned → blocked outright	11
2026-08-03	blocked outright → not mentioned	3
2026-08-03	not mentioned → partly restricted	1
2026-08-03	not mentioned → named and allowed	1
2026-08-03	partly restricted → blocked outright	1
2026-08-03	blocked outright → named and allowed	1
2026-08-03	named and allowed → not mentioned	1
2026-08-02	not mentioned → blocked outright	12
2026-08-02	blocked outright → not mentioned	7
2026-08-02	not mentioned → partly restricted	1
2026-08-02	not mentioned → named and allowed	1
2026-08-01	not mentioned → blocked outright	15
2026-08-01	blocked outright → not mentioned	5
2026-08-01	not mentioned → partly restricted	2
2026-08-01	named and allowed → not mentioned	2

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.

Every sealed date

The denominator column is the number of panel domains that served a parseable robots.txt that day. It moves, so a raw count moves with it — compare the ratio, not the count.

Sealed date	Names it	Blocks outright	Partly restricts	Names & allows	Parsed that day
2026-08-07	7,784	6,743	543	498	61,552
2026-08-06	7,726	6,691	537	498	61,421
2026-08-05	7,735	6,699	540	496	61,527
2026-08-04	7,716	6,685	534	497	61,620
2026-08-03	7,708	6,679	528	501	61,533
2026-08-02	7,687	6,658	529	500	61,559
2026-08-01	7,655	6,632	526	497	61,326
2026-07-31	7,693	6,667	525	501	61,595
2026-07-30	7,696	6,677	521	498	61,444
2026-07-29	7,681	6,667	519	495	61,492
2026-07-28	7,669	6,658	516	495	61,562
2026-07-27	7,664	6,653	514	497	61,440
2026-07-26	7,654	6,647	513	494	61,573
2026-07-25	7,666	6,658	514	494	61,584
2026-07-24	7,632	6,627	513	492	61,576
2026-07-23	7,632	6,621	514	497	61,758
2026-07-22	7,612	6,606	511	495	61,744
2026-07-21	7,545	6,552	508	485	61,565
2026-07-20	7,583	6,589	506	488	61,665
2026-07-19	7,573	6,583	501	489	61,451
2026-07-18	7,582	6,588	506	488	61,782
2026-07-17	7,567	6,578	504	485	61,659
2026-07-16	7,518	6,537	501	480	61,526
2026-07-14	7,455	6,479	491	485	61,542
2026-07-13	7,418	6,450	485	483	61,448
2026-07-12	7,423	6,461	482	480	61,518
2026-07-11	7,421	6,454	484	483	61,526
2026-07-10	7,431	6,462	485	484	61,425
2026-07-09	7,409	6,444	480	485	61,495
2026-07-08	7,381	6,426	479	476	61,364
2026-07-07	7,349	6,397	476	476	61,491
2026-07-06	7,351	6,401	475	475	61,455
2026-07-05	7,353	6,405	471	477	61,562
2026-07-03	7,341	6,391	472	478	61,535
2026-07-02	7,319	6,373	471	475	61,553
2026-07-01	7,370	6,333	470	567	61,599
2026-06-30	7,371	6,335	471	565	61,590
2026-06-29	7,389	6,358	474	557	61,814
2026-06-28	7,392	6,356	474	562	61,835
2026-06-27	7,367	6,338	469	560	61,848
2026-06-26	7,371	6,338	473	560	61,851
2026-06-25	7,340	6,317	472	551	61,867
2026-06-24	7,274	6,316	463	495	61,660
2026-06-23	7,263	6,310	461	492	61,877
2026-06-22	7,246	6,291	464	491	61,911
2026-06-21	7,222	6,269	462	491	61,905
2026-06-20	7,223	6,273	459	491	61,754
2026-06-18	7,228	6,279	458	491	61,805
2026-06-17	7,281	6,264	461	556	61,952
2026-06-16	7,193	6,198	447	548	61,645
2026-06-15	7,194	6,191	451	552	61,715
2026-06-14	7,173	6,172	451	550	61,697
2026-06-13	7,150	6,150	453	547	61,648
2026-06-10	7,082	6,093	445	544	61,489
2026-06-09	7,075	6,088	445	542	61,599

Why you will not find a robots.txt file here. These pages render mechanical verdicts and aggregate diffs, never a fetched body. Site operators leave contact addresses in robots.txt comments — on the 2026-08-06 snapshot 2,200 of the distinct bodies we fetched contain an email-shaped string — and republishing bodies would republish those. Nothing on this surface identifies an individual site, either: every figure is a count.

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.