Which websites block cohere-ai?

31 of 244 popular sites we measured block cohere-ai (12.7%), checked 2026-10-01.

cohere-ai is Cohere’s crawler for search and training fetch (Cohere). It fetches pages so an answer can cite them, so blocking it removes a site from those answers as a live source. More about cohere-ai.

The robots.txt rule

To block it:

User-agent: cohere-ai
Disallow: /

To allow it explicitly:

User-agent: cohere-ai
Allow: /

A server or CDN can still refuse the crawler when robots.txt allows it. That is why the checker fetches as the crawler as well as reading the file.

Sites that block cohere-ai

Check your own site

The free checker runs the same probe on any URL: robots.txt resolved for every AI crawler, then a live fetch as each one, so a CDN or firewall block shows up even when robots.txt looks fine.

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