AI Crawler Index · OpenAI · GPTBot
Which .org websites block GPTBot?
As of 2026-10-02, 58 of the 514 .org websites whose robots.txt we could read (11.3%) block GPTBot, OpenAI's AI training crawler, on the home page, compared with 12% of all sites; 6 more block it on some paths.
11.3%
of 514 .org websites block GPTBot
12%
of all sites
58
sites block it
All 58 .org websites that block GPTBot
| # | Site | Policy | Crawlers blocked |
|---|---|---|---|
| 275 | unesco.org | Blocks training only | 8 of 29 |
| 397 | hbr.org | Blocks training only | 3 of 29 |
| 479 | pbs.org | Blocks some AI search | 4 of 29 |
| 489 | archiveofourown.org | Blocks some AI search | 3 of 29 |
| 604 | themoviedb.org | Blocks some AI search | 20 of 29 |
| 632 | jstor.org | Blocks training only | 4 of 29 |
| 749 | tjk.org | Blocks some AI search | 28 of 29 |
| 929 | sciencemag.org | Blocks some AI search | 5 of 29 |
| 966 | pnas.org | Blocks training only | 1 of 29 |
| 1019 | science.org | Blocks some AI search | 5 of 29 |
| 1109 | openssl.org | Blocks all AI search | 29 of 29 |
| 1262 | nejm.org | Blocks some AI search | 5 of 29 |
| 1395 | tmdb.org | Blocks some AI search | 20 of 29 |
| 1743 | unep.org | Blocks some AI search | 11 of 29 |
| 1762 | worldcat.org | Blocks some AI search | 4 of 29 |
| 1850 | consumerreports.org | Blocks some AI search | 5 of 29 |
| 1964 | codeberg.org | Blocks some AI search | 12 of 29 |
| 2307 | ahajournals.org | Blocks training only | 1 of 29 |
| 2315 | emojipedia.org | Blocks training only | 7 of 29 |
| 2390 | tvtropes.org | Blocks some AI search | 11 of 29 |
| 2671 | biorxiv.org | Blocks some AI search | 8 of 29 |
| 3080 | wto.org | Blocks some AI search | 28 of 29 |
| 3131 | gentoo.org | Blocks some AI search | 20 of 29 |
| 3141 | bookshop.org | Blocks training only | 9 of 29 |
| 3868 | inkscape.org | Blocks training only | 3 of 29 |
| 3916 | poetryfoundation.org | Blocks some AI search | 11 of 29 |
| 3920 | britishmuseum.org | Blocks some AI search | 11 of 29 |
| 4260 | albumoftheyear.org | Blocks training only | 7 of 29 |
| 4715 | nypl.org | Blocks training only | 2 of 29 |
| 5193 | sciencenews.org | Blocks some AI search | 10 of 29 |
| 5530 | c-span.org | Blocks some AI search | 8 of 29 |
| 5793 | bangumi.org | Blocks some AI search | 6 of 29 |
| 5928 | wikicv.org | Blocks some AI search | 28 of 29 |
| 5937 | wbur.org | Blocks some AI search | 13 of 29 |
| 6516 | healthychildren.org | Blocks training only | 4 of 29 |
| 6690 | pbskids.org | Blocks training only | 8 of 29 |
| 6714 | psychiatryonline.org | Blocks training only | 1 of 29 |
| 6760 | helpguide.org | Blocks training only | 1 of 29 |
| 6861 | flathub.org | Blocks training only | 3 of 29 |
| 7110 | ebird.org | Blocks all AI search | 29 of 29 |
| 7263 | rsf.org | Blocks some AI search | 3 of 29 |
| 7313 | commonsensemedia.org | Blocks some AI search | 5 of 29 |
| 7315 | usgbc.org | Blocks some AI search | 28 of 29 |
| 7347 | gamblingtherapy.org | Blocks all AI search | 29 of 29 |
| 7474 | f-droid.org | Blocks some AI search | 11 of 29 |
| 7550 | leo.org | Blocks some AI search | 3 of 29 |
| 7569 | freesound.org | Blocks some AI search | 3 of 29 |
| 7775 | acog.org | Blocks some AI search | 4 of 29 |
| 8032 | alternet.org | Blocks some AI search | 4 of 29 |
| 8197 | healthaffairs.org | Blocks training only | 1 of 29 |
| 8294 | neurology.org | Blocks training only | 1 of 29 |
| 8405 | aeaweb.org | Blocks training only | 2 of 29 |
| 8635 | ascopubs.org | Blocks some AI search | 4 of 29 |
| 9189 | project-syndicate.org | Blocks some AI search | 10 of 29 |
| 9644 | hrc.org | Blocks some AI search | 3 of 29 |
| 9835 | dejure.org | Blocks some AI search | 5 of 29 |
| 9901 | adl.org | Blocks some AI search | 9 of 29 |
| 9967 | acpjournals.org | Blocks training only | 2 of 29 |
Popular .org websites that allow GPTBot
Other AI crawlers and .org websites
- ClaudeBot 6.2%
- PerplexityBot 4.1%
- Google-Extended 7.4%
- CCBot 9.3%
- Bytespider 8%
- Applebot-Extended 5.6%
- OAI-SearchBot 2.1%
GPTBot in other segments
- social websites 32.7%
- .fr (France) websites 31.8%
- news websites 31.5%
- reference websites 28.9%
- .au (Australia) websites 27.8%
- .it (Italy) websites 27.3%
- .nl (Netherlands) websites 27.1%
- .pl (Poland) websites 26.4%
- .de (Germany) websites 23.6%
- .es (Spain) websites 22.2%
- .uk (United Kingdom) websites 20%
- .app websites 16.7%
- .ch (Switzerland) websites 16.7%
- .net websites 13.4%
FAQ
- Which .org websites block GPTBot?
- unesco.org, hbr.org, pbs.org, archiveofourown.org, themoviedb.org, jstor.org, tjk.org, sciencemag.org, and 50 more (full list on this page).
- How many .org websites block GPTBot?
- As of 2026-10-02, 58 of the 514 .org websites whose robots.txt we could read (11.3%) block GPTBot, OpenAI's AI training crawler, on the home page, compared with 12% of all sites; 6 more block it on some paths.
- How do I block or allow GPTBot on my site?
- Add "User-agent: GPTBot" followed by "Disallow: /" to https://<your-site>/robots.txt to block it, or "Allow: /" to allow it. Check the result with the free AI crawler checker at tools.yukai.uk/free/ai-crawler-checker.