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Vercel
vercel.comAllows AI
Its robots.txt (the public rules file for bots) has no rules for any AI bot we track. They are covered by its catch-all rule (User-agent: *), which lets them into the site.
Last checked 19 Oct 2026. Rules file read today. Everything we checked · History
Bots that train AI Allowed
0 of 9 blocked
Blocking these keeps the site out of future AI training. It does not stop AI from reading the site to answer questions.
Bots for AI search Allowed
0 of 8 blocked
Blocking these usually means the site stops showing up as a source in AI answers.
AI assistants Allowed
0 of 7 blocked
5 of these 7 companies say their assistants may ignore robots.txt.
Bot by bot
| AI bot | Allowed? | Where the rule is | Company says it follows robots.txt? |
|---|---|---|---|
| Bots that train AI · Allowed | |||
| GPTBotOpenAI | Allowed | Not named; the catch-all rule applies | Says yes |
| ClaudeBotAnthropic | Allowed | Not named; the catch-all rule applies | Says yes |
| Google-ExtendedGoogle · opt-out name, not a bot | Allowed | Not named; the catch-all rule applies | Says yes |
| Applebot-ExtendedApple · opt-out name, not a bot | Allowed | Not named; the catch-all rule applies | Says yes |
| CCBotCommon Crawl | Allowed | Not named; the catch-all rule applies | Says yes |
| Meta-ExternalAgentMeta | Allowed | Not named; the catch-all rule applies | Suggests yes |
| BytespiderByteDance | Allowed | Not named; the catch-all rule applies | No statement found |
| MistralAI-TrainingMistral AI | Allowed | Not named; the catch-all rule applies | Says yes |
| AI2BotAllen Institute for AI | Allowed | Not named; the catch-all rule applies | Does not say |
| anthropic-aiAnthropic (legacy) · old name | Allowed | Not named; the catch-all rule applies | Unknown |
| Bots for AI search · Allowed | |||
| OAI-SearchBotOpenAI | Allowed | Not named; the catch-all rule applies | Says yes |
| Claude-SearchBotAnthropic | Allowed | Not named; the catch-all rule applies | Says yes |
| PerplexityBotPerplexity | Allowed | Not named; the catch-all rule applies | Suggests yes |
| AmazonbotAmazon | Allowed | Not named; the catch-all rule applies | Says yes |
| Amzn-SearchBotAmazon | Allowed | Not named; the catch-all rule applies | Says yes |
| DuckAssistBotDuckDuckGo | Allowed | Not named; the catch-all rule applies | Says yes |
| MistralAI-IndexMistral AI | Allowed | Not named; the catch-all rule applies | Suggests yes |
| Meta-WebIndexerMeta | Allowed | Not named; the catch-all rule applies | Suggests yes |
| AI assistants · Allowed | |||
| ChatGPT-UserOpenAI | Allowed | Not named; the catch-all rule applies | Says not always |
| Claude-UserAnthropic | Allowed | Not named; the catch-all rule applies | Says yes |
| Perplexity-UserPerplexity | Allowed | Not named; the catch-all rule applies | Says it mostly ignores it |
| Google-AgentGoogle | Allowed | Not named; the catch-all rule applies | Says it mostly ignores it |
| Meta-ExternalFetcherMeta | Allowed | Not named; the catch-all rule applies | Says not always |
| Amzn-UserAmazon | Allowed | Not named; the catch-all rule applies | Says not always |
| MistralAI-UserMistral AI | Allowed | Not named; the catch-all rule applies | Suggests yes |
| For comparison | |||
| GooglebotRegular search engine, for comparison | Allowed | Not named; the catch-all rule applies | |
| BingbotRegular search engine, for comparison | Allowed | Not named; the catch-all rule applies | |
We test two pages: the homepage, and a made-up page that stands in for the rest of the site. "Blocked" means both are off limits. "Some pages blocked" means only one is. Rules for search results, carts, checkout and accounts don't change these labels, because almost every site keeps all bots out of those pages.
The rules file (robots.txt)
User-Agent: *Content-Signal: search=yes, ai-input=yes, ai-train=no # Allow robots to be able to crawl the OG Image API route and all the subpathsAllow: /api/og/*Allow: /api/docs-og*Allow: /api/product-og*Allow: /api/dynamic-og*Allow: /api/model-og*Allow: /api/www/avatar/* Disallow:Disallow: /api/Disallow: /oauthDisallow: /confirmDisallow: /notificationsDisallow: /old-browser.htmlDisallow: /preauthorizeDisallow: /signup?*Disallow: /invites/# No-index author pages (direct URL only, also marked noindex/nofollow)Disallow: /blog/authorsDisallow: /changelog/authors Sitemap: https://vercel.com/sitemap.xml
Everything else we checked
| Front door | Let in The homepage loaded normally for our bot, which says who it is (HTTP 200).GET https://vercel.com/ as WalledWebBot, from a residential connection in the United States |
|---|---|
| llms.txt | Present · 5.1 KB · "Vercel" · 27 linkshttps://vercel.com/llms.txt |
| Content signals | Content-Signal: search=yes, ai-input=yes, ai-train=no line 2Content-Signal is Cloudflare's CC0 policy (search, ai-input, ai-train). Content-Usage is the IETF AI-preferences draft. Both state preferences; neither blocks anything by itself. |
| Anti-bot software | No sign of anti-bot software in the response.From response headers and cookie names only. A cookie shows the product is there, not how it is set up. |
| Readable by AI | No schema.org structured data on the homepage. Readable text is present in the HTML.Homepage only. Useful for site owners; not part of the result. |
| Terms of Service | No Terms of Service page found. |
| Not found | No ai.txt, tdmrep.json, licensing signals (RSL License, HTTP 402) or robots meta tags. |
History
44 versions on record since 1 Jan 2023
One square per month, from Internet Archive copies and our own daily checks. Dark: blocked. Gray: some blocked. Light: allowed. Striped: no copy that month.
- May 2026Signals Added
Content-Signal: search=yes, ai-input=yes, ai-train=no.Found in the Internet Archive's copies: changed between 1 Apr 2026 and 1 May 2026. Evidence: before · afterShow exactly what changed
User-Agent: *+ Content-Signal: search=yes, ai-input=yes, ai-train=no++ # Allow robots to be able to crawl the OG Image API route and all the subpaths+ Allow: /api/og/*+ Allow: /api/docs-og*+ Allow: /api/product-og*+ Allow: /api/dynamic-og*+ Allow: /api/www/avatar/*+Disallow:- Disallow: /api+ Disallow: /api/Disallow: /oauth…Disallow: /old-browser.html- Disallow: /docs/concepts/payments-and-billing/usage-based-pro-plan+ Disallow: /preauthorize+ Disallow: /signup?*+ Disallow: /invites/- Sitemap: https://vercel.com/crawled-sitemap.xml+ Sitemap: https://vercel.com/sitemap.xml+
Reports from readers
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