Regex Tester & Validator

This regex matches everything that follows either 'https://' or 'http://' in a string, using a positive lookbehind to assert the protocol without including it. It is useful for extracting domains and paths from URLs, particularly when scanning text for web addresses. With the 'm' flag, it applies per line, capturing from each protocol occurrence to the end of the line, though it stops at newlines unless the 's' flag is also used.