Websites blocking GPTBot

OpenAI's web crawler for collecting training data for its foundation models, including the GPT series. Announced in August 2023, it quickly became the most widely blocked AI crawler token.

Operated by OpenAI · Training crawler · operator documentation

6.04% block GPTBot 1.49 million of 24.63 million domains with a known robots.txt policy 2.49% block it by name 614K domains, the rest inherit a blanket * block 2.89% restrict it by name 712K domains name it and close some of its paths 6.30% name it in robots.txt 1.55 million domains give it rules of their own

Data for Sep 2026. All four percentages divide by the same 24.63 million domains. Blocked counts both explicit User-agent: GPTBot blocks and blanket * blocks the crawler inherits.

Blocking trend

Share of domains with a known robots.txt policy blocking GPTBot in each monthly crawl. The denominator moves with each crawl and is defined in the methodology.

Historical mentions, HTTP Archive

Share of sites in each month's HTTP Archive crawl whose robots.txt named GPTBot. This series counts mentions only (the archive keeps no rule text), comes from a different population than our own crawl above, and the two are never merged.

High-authority sites blocking GPTBot by name

Domain OPROpen Page Rank Blocking since
linkedin.com 9.82/10 Aug 2026
vimeo.com 9.54/10 Oct 2026
whatsapp.com 9.52/10 Oct 2026
cloudfront.net 9.47/10 Oct 2026
fbcdn.net 9.40/10 Aug 2026
nytimes.com 9.28/10 Aug 2026
yahoo.com 9.27/10 Oct 2026
line.me 9.23/10 Oct 2026
amazon.co.jp 9.16/10 Sep 2026
hbr.org 9.14/10 Oct 2026
substack.com 9.13/10 Oct 2026
cookielaw.org 9.10/10 Aug 2026
bandcamp.com 9.06/10 Aug 2026
tandfonline.com 9.05/10 Aug 2026
lnkd.in 9.05/10 Aug 2026
ed.gov 9.05/10 Sep 2026
pexels.com 9.03/10 Aug 2026
pixabay.com 9.02/10 Oct 2026
apnews.com 9.02/10 Sep 2026
cbsnews.com 9.02/10 Aug 2026
naver.com 8.99/10 Oct 2026
amazon.fr 8.99/10 Sep 2026
healthline.com 8.98/10 Aug 2026
nhk.or.jp 8.98/10 Aug 2026
media-amazon.com 8.95/10 Aug 2026
science.org 8.95/10 Oct 2026
mastodon.social 8.93/10 Sep 2026
wa.gov 8.93/10 Oct 2026
quora.com 8.92/10 Aug 2026
autoriteitpersoonsgegevens.nl 8.92/10 Oct 2026

Sites whose robots.txt names GPTBot (or a legacy alias) with a full block, ranked by Open Page Rank. Sites blocking every crawler with a blanket * rule are counted above but not listed here. Since dates start at our first observation of the rule.

Restricting some paths

Crawler first seen in the wild around Aug 2023. How to block it and what each state means is on the methodology page.

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