LAC_IAHarvester
Canadian library web archiving bot preserving government websites
About this crawler
LAC_IAHarvester is a web crawler identified by the regular-expression pattern LAC_IAHarvester in the User-Agent request header. It is categorised as archiver. Use the regex above to detect, log, allow, or block LAC_IAHarvester 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
- LAC_IAHarvester
- Pattern
LAC_IAHarvester- Tags
- archiver
- Reference
- https://www.canada.ca/en/library-archives/services/government/web-social-media-preservation-program.html
- Added
- 2026/04/17
- Instances
- 1 known sample(s)
Sample User-Agent strings
Mozilla/5.0 (compatible; LAC_IAHarvester/3.3.0; +https://library-archives.canada.ca/eng/services/government-canada/web-social-media-preservation-program/Pages/web-archive.aspx)
Block this crawler
robots.txt — disallow LAC_IAHarvester:
User-agent: LAC_IAHarvester
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} LAC_IAHarvester [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "LAC_IAHarvester") {
return 403;
}
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