Readability
Readability content extraction service
About this crawler
Readability is a web crawler identified by the regular-expression pattern Readability in the User-Agent request header. It is categorised as ai-fetcher. Use the regex above to detect, log, allow, or block Readability traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
No block-rate data for this crawler.
Technical details
- Name
- Readability
- Pattern
Readability- Tags
- ai-fetcher
- Reference
- http://readability.com/about/
- Added
- 2026/05/09
- Instances
- 3 known sample(s)
Sample User-Agent strings
Readability/1900e6 - http://readability.com/about/
Readability/6a54d4 - http://readability.com/about/
Readability/740ec9 - http://readability.com/about/
Block this crawler
robots.txt — disallow Readability:
User-agent: Readability
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Readability [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "Readability") {
return 403;
}
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