Well, type your regex in regexr, then use the test URL, and you'll see that it only partially matches the text, sicne your pattern doesn't have a $ at the end and doesn't accept slashes in URLs.
#regex validation
shadow crescent
modern sundial
aah ok, indeed, I need a regex that takes everything. actually regex is wrong mmmmmmm
modern sundial
i put a $ at end
^(http[s]?://){0,1}(www.){0,1}[a-zA-Z0-9.-]+.[a-zA-Z]{2,5}[.]{0,1}$
and --> "no match"
shadow crescent
Of course, since your regex still doesn't accept slashes and your URL has slashes.