URL wildcard Pattern

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URL wildcard Pattern

L2 Linker

Hello everyone, I need to block URLs that have a word pattern/string, It is possible to restrict certain strings inside the name of a URL?? for example the word "good" inside the website "www.goodwill.com" to be blocked ? I already try with Wildcards, any ideas on how to achive this ? block keywords for web browsing is this possible and how to do it?


Cyber Elite
Cyber Elite

I don't believe this is possible; you might want to look into the service k9 which is primarly based for schools but can actually block by keywords. Most vendors don't allow for this because the risk for false positives are to high (just like small regex entries). If you blocked every website that has the word good in it you would need to scan the entire URL; so search results, page titles, and many other things would inadvertibly be picked up and blocked. 

Community Team Member

Hi @oscaringosv,


I'm afraid @BPry is correct.


Custom URL category won't allow regex.  It only allows wildcards.


There are some considerations to take when you want to use wildcards in custom URL categories.  Allow me to explain using "good" as an example :


The following characters are considered separators:
Every substring that is separated by the characters listed above is considered a token. A token can be any number of ASCII characters that does not contain any separator character or *. For example, the following patterns are valid :
*.good.com (Tokens are: "*", "good" and "com")
www.*.com (Tokens are: "www", "*" and "com")
www.good.com/search=* (Tokens are: "www", "good", "com", "search", "*")
The following patterns are invalid because the character “*” is not the only character in the token.
Cheers !
LIVEcommunity team member, CISSP
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So based on this we are looking for block subdomains from all countries (i.e *.domain.us, *.domain.mx) is below a good entry:




I am trying to implement this on URL Category


Best Regards

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