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Home/ Questions/Q 8731729
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Editorial Team
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Editorial Team
Asked: June 13, 20262026-06-13T09:18:14+00:00 2026-06-13T09:18:14+00:00

I want to match a specific subdomain but any domain using regex. Exemple :

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I want to match a specific subdomain but any domain using regex.

Exemple :

  • http://webmail.domain1.com => MATCH
  • http://webmail.domain2.net => MATCH
  • http://webmail.domain3.de => MATCH
  • http://www.domain1.com => DON’T MATCH
  • http://some.domain2.be => DON’T MATCH
  • http://another.domain3.com => DON’T MATCH

I also need in that regex match to get a matching group with the rest of the querystring :

http://webmail.domain1.com/default.aspx?q=1&p=2

  • Group 1 : http://webmail.domain1.com => this MUST match
  • Group 2 : default.aspx?q=1&p=2
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  1. Editorial Team
    Editorial Team
    2026-06-13T09:18:16+00:00Added an answer on June 13, 2026 at 9:18 am

    Here you go:

    ^(http:\/\/webmail\..+?\.com)(.*)
    

    Test here: http://rubular.com/r/rVu8zYHCE7

    Here is one that isn’t specific to .com:

    ^(http:\/\/webmail\..+?(?:\/|$))(.*)
    
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