^ - This signifies the start of the expression.
https?:// - This matches either "http://" or "https://".
(www.)? - This makes the "www." subdomain optional.
[A-z0-9]+ - This matches one or more alphanumeric characters for the domain name.
. - This matches a literal period character.
[A-z0-9]+ - This matches one or more alphanumeric characters for the top-level domain.
$ - This signifies the end of the expression.
T眉rk莽e olarak:
^ - Bu, ifadenin ba艧lang谋c谋n谋 belirtir.
https?:// - Bu, "http://" veya "https://" 艧eklindeki ba臒lant谋lar谋 e艧le艧tirir.
(www.)? - Bu, "www." alt etki alan谋n谋n iste臒e ba臒l谋 oldu臒unu g枚sterir.
[A-z0-9]+ - Bu, etki alan谋 ad谋 i莽in alfasay谋sal karakterleri e艧le艧tirir.
. - Bu, literal nokta karakterini temsil eder.
[A-z0-9]+ - Bu, en 眉st d眉zey etki alan谋 i莽in alfasay谋sal karakterleri e艧le艧tirir.
$ - Bu, ifadenin sonunu belirtir.