Pattern
/\b(?:[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?\.)+[a-z]{2,}\b/Sample text
Visit regexbench.ru or sub.example.co.uk not a domain localhostTest this pattern in the editor
Domain names
Simple FQDN matcher for hostnames in prose.
Related patterns
HTTP(S) URLs
Match protocol, host, and optional path/query.
URL slugs
kebab-case slugs for routes and CMS paths.
IPv4 addresses
Octet-bounded IPv4 matcher for log scraping.
IPv6 (simplified)
Common full and compressed IPv6 forms.
MAC addresses
Colon or hyphen separated IEEE MAC addresses.
Apache log line
Host, time, and request from a Combined log line.