20 Url Domain Name Regex Update

Python regular expressions regular expression in python for beginners python regex cheat sheet python 3 regex python regex tester python re findall python regex multiple patterns python regex replace python regex replace all extracting domain name in python python get domain name extract the domain name from a url python codewars python regex to get domain name how to check domain.

Url domain name regex. Match a word chracter w. One good library is gnu libidn. Both the last and second last matches will only match 2 3 characters so that it doesn t confuse it with a second level domain name.

Nicoting if u use iswellformeduristring and type script script alert 9 script it will tell you that it is not valid this is the same to the classic api in c. You can add additional valid tlds by appending the pipe character and the desired tld to the list in the parens. The output will be as follows for the url s listed.

Regex testing from dan s tools. Regular expression to a simple and powerful regular expression to match most legal urls. This regular expression tests the validity of a domain or hostname.

As you can see the domain name and the domain name without the extension are consistently extracted whatever the url that is presented to the function. Match a non word character d. Last tld must be at least two characters and a maximum of 6 characters.

I think you d better use some other ways combined with the class you showed to check the url. So some related threads like this one shows the same thing. Here s my idea match anything that isn t a dot three times from the end of the line using the anchor.

Match any character w. The domain name should not start or end with hyphen e g. Match any non digit character.