LastModBot
Web crawler detecting page freshness by analyzing last modified headers
About this crawler
LastModBot is a web crawler identified by the regular-expression pattern LastModBot\/ in the User-Agent request header. It is categorised as seo. Use the regex above to detect, log, allow, or block LastModBot 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
- LastModBot
- Pattern
LastModBot\/- Tags
- seo
- Reference
- https://last-modified.com/
- Added
- 2026/04/17
- Instances
- 1 known sample(s)
Sample User-Agent strings
Mozilla/5.0 (compatible; LastModBot/0.1; +https://last-modified.com/en)
Block this crawler
robots.txt — disallow LastModBot:
User-agent: LastModBot
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} LastModBot\/ [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "LastModBot\\/") {
return 403;
}
← back to all crawlers