Regex for website

Question

I am using the below regex of validating the website URL.

^(http(s?):\/\/)?(www\.)+[a-zA-Z0-9\.\-\_]+(\.[a-zA-Z]{2,3})+(\/[a-zA-Z0-9\_\-\s\.\/\?\%\#\&\=]*)?$

It work fine with the below website URL to match:

www.google.com

It also not math below URL

google.com

google.co

www.g@oogle.com

But it will fails to test the below URL:

www...google.com

Please give the suggestion for the same. I have already go through the below stack overflow URL but answer is not useful for me.

Of all the _strings_ you posted as examples only `http://www.google.com/` and `https://www.google.com/` are actually valid URLs. — arkascha, Nov 21 '16 at 10:53
url validation is a complex topic. This guy created a nice comparison, check it out: https://mathiasbynens.be/demo/url-regex — Martin Gottweis, Nov 21 '16 at 10:53
Please put your question in this format: 1. The strings? that you have. 2. The pattern you want to match in the given strings?. 3. What have you tried. — Mohammad Yusuf, Nov 21 '16 at 10:54

score 2 · Answer 1 · answered Nov 21 '16 at 11:11

2

To avoid the ... you can use a negative lookahead

For example :

^(?!.*\.\.)(https?:\/\/)?www\.[\w.\-]+(\.[a-zA-Z]{2,3})+(\/[\w.?%#&=\/\-]*)?$

The (?!.*\.\.) in that regex won't allow 2 dots in the string.

answered Nov 21 '16 at 11:11

LukStorms

1 Answers1