Regex Editor & Tester

Matches an 'ETag' HTTP header label followed by one or more whitespace characters, a colon, and a single space, then captures the tag value consisting of lowercase letters, digits, and hyphens. Commonly used to extract ETag identifiers from HTTP response headers, such as those in Minecraft server status/ping responses. The global and multiline flags allow finding all ETag occurrences across multiple lines of input.