DomainCheck.io Crawler
Domain availability checker
About this crawler
DomainCheck.io Crawler is a web crawler identified by the regular-expression pattern DomainCheck\.io Crawler in the User-Agent request header. It is categorised as monitoring. Use the regex above to detect, log, allow, or block DomainCheck.io Crawler 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
- DomainCheck.io Crawler
- Pattern
DomainCheck\.io Crawler- Tags
- monitoring
- Reference
- https://domaincheck.io
- Added
- 2026/05/03
- Instances
- 1 known sample(s)
Sample User-Agent strings
DomainCheck.io Crawler/1.3 (https://domaincheck.io)
Block this crawler
robots.txt — disallow DomainCheck.io Crawler:
User-agent: DomainCheck.io Crawler
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} DomainCheck\.io Crawler [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "DomainCheck\\.io Crawler") {
return 403;
}
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