This list contains AI-related crawlers of all types, regardless of purpose. We encourage you to contribute to and implement this list on your own site. See [information about the listed crawlers](./table-of-bot-metrics.md) and the [FAQ](https://github.com/ai-robots-txt/ai.robots.txt/blob/main/FAQ.md).
A number of these crawlers have been sourced from [Known Agents](https://knownagents.com) and we appreciate the ongoing effort they put in to track these crawlers.
`.htaccess` may be used to configure web servers such as [Apache httpd](https://httpd.apache.org/) to return an error page when one of the listed AI crawlers sends a request to the web server.
Note that, as stated in the [httpd documentation](https://httpd.apache.org/docs/current/howto/htaccess.html), more performant methods than an `.htaccess` file exist.
`nginx-block-ai-bots.conf` implements a Nginx configuration snippet that can be included in any virtual host `server {}` block via the `include` directive.
`Caddyfile` includes a Header Regex matcher group you can copy or import into your Caddyfile, the rejection can then be handled as followed `abort @aibots`
`lighttpd-block-ai-bots.conf` can be included with `include "fragments/lighttpd-block-ai-bots.conf"` in your lighttpd configuration either globally or in any conditional section.
[Bing uses the data it crawls for AI and training, you may opt out by adding a `meta` tag to the `head` of your site.](./docs/additional-steps/bing.md)
- [Bot Ledger](https://farrelldan.github.io/ai-bot-directory/): free, static directory of verified AI crawlers with a one-click `robots.txt` and `llms.txt` generator. No signup required.
- [KI-Zugangsindex](https://peppe1337.github.io/ki-zugangsindex/): open dataset on how widely this kind of blocking is actually deployed in the German (`.de`) web, measured on a fixed panel of 600 domains so the same sites can be re-checked over time.
- [AI Crawler Census](https://ai-visibility.lastminutedealshq.com/data): open dataset measuring which of these crawlers the Tranco top 5,000 sites allow or block, with per-domain results published for each run so the same sites can be compared over time. Raw JSON, CC BY 4.0.
- [AI Discovery Radar](https://github.com/flober81/ai-discovery-radar): monthly measurement of how many websites actually publish the files that tell AI systems what they may read or use (`robots.txt`, `llms.txt`, `ai.txt`, `tdmrep.json` and similar), and whether those files can be fetched at all. Open data, CC BY 4.0.
A note about contributing: updates should be added/made to `robots.json`. A GitHub action will then generate the updated `robots.txt`, `table-of-bot-metrics.md`, `.htaccess` and `nginx-block-ai-bots.conf`.
You can subscribe with [Feedly](https://feedly.com/i/subscription/feed/https://github.com/ai-robots-txt/ai.robots.txt/releases.atom), [Inoreader](https://www.inoreader.com/?add_feed=https://github.com/ai-robots-txt/ai.robots.txt/releases.atom), [The Old Reader](https://theoldreader.com/feeds/subscribe?url=https://github.com/ai-robots-txt/ai.robots.txt/releases.atom), [Feedbin](https://feedbin.me/?subscribe=https://github.com/ai-robots-txt/ai.robots.txt/releases.atom), or any other reader app.
Alternatively, you can also subscribe to new releases with your GitHub account by clicking the ⬇️ on "Watch" button at the top of this page, clicking "Custom" and selecting "Releases".
If you use [Cloudflare's hard block](https://blog.cloudflare.com/declaring-your-aindependence-block-ai-bots-scrapers-and-crawlers-with-a-single-click) alongside this list, you can report abusive crawlers that don't respect `robots.txt` [here](https://docs.google.com/forms/d/e/1FAIpQLScbUZ2vlNSdcsb8LyTeSF7uLzQI96s0BKGoJ6wQ6ocUFNOKEg/viewform).
But even if you don't use Cloudflare's hard block, their list of [verified bots](https://radar.cloudflare.com/traffic/verified-bots) may come in handy.
