Verified.Issued by Regex Hunter Academy to SebastianSteffen on 15 October 2026. It can't be edited.
Regex Hunter · Academy CompletedCertificate of completion
TRACK 6
Lookarounds
Peek without consuming — lookahead and lookbehind are zero-width assertions that check what comes before or after a spot, then step back and let the real match continue.
Awarded to
SebastianSteffen
Lookahead Negative lookahead Lookbehind Negative lookbehind Password rules
10 / 10
hunts cleared
5
concepts
15 Oct 2026
issued
Verify at regexhunter.com/verifyRH-LOOK-2BD97E