Archive-It
Internet Archive's web preservation crawler
About this crawler
Archive-It is a web crawler identified by the regular-expression pattern Archive-It in the User-Agent request header. It is categorised as archiver. Use the regex above to detect, log, allow, or block Archive-It traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.065%
Technical details
- Name
- Archive-It
- Pattern
Archive-It- Tags
- archiver
- Reference
- https://archive-it.org/files/site-owners-special.html
- Added
- 2026/04/26
- rDNS suffixes
.archive.org,.internetarchive.org- Instances
- 1 known sample(s)
rDNS verification (FCrDNS)
Verify a request is genuinely Archive-It with forward-confirmed reverse DNS: the client IP's PTR record must end in one of the suffixes below and a forward A/AAAA lookup of that hostname must return the same IP. UA strings alone are spoofable; FCrDNS is not.
.archive.org.internetarchive.org
Sample User-Agent strings
UM-Bentley-Archive-It
Block this crawler
robots.txt — disallow Archive-It:
User-agent: Archive-It
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Archive-It [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "Archive-It") {
return 403;
}
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