Regular expression ^(?:https?:)?(?:\/\/)?(?:+@)?(?:www\.)?(+) used below extracts domain with subdomains out of a full url. It skips protocol (ex: https:), "//", "@", www subdomain and then captures everything (ex: domain) before ":" or "/" or end of line.

Useful for validating services in TF

Get every word ending with dot using Regex/VBA

IPv4 Address Validation Regex

VLAN ID Validation Regex Please use first segment or second depending on the Extended VLAN usage such as "1-256" or "1-4096" : Non-extended VLAN IDs (1-256), check v2 of the regex entry ...

Date String ISO Pattern matcher

To get