Specifying URLs in lists

When specifying URLs in lists, observe the following:

  • Omit the protocol (for example, HTTP://) and port number.
  • Entering a domain name covers all sub-domains.
  • Wildcards are not supported, but are assumed at both ends of the URL. For example, example.com is equivalent to entering .example.com/.
  • Query parameters are supported, but require exact matching. Only use query parameters if you want to specify a single specific URL (see example below).
  • URLs are normalized in the Control Center user interface, as follows:
    • Only the host, path, and query elements are retained. Remaining elements are discarded.
    • All characters are converted to lowercase.
    • IPv4/IPv6 host canonicalization.
    • Path canonicalization.
  • You may specify a maximum of 20 sub-domains.
  • The same URL can be specified in a maximum of 8 different lists.


Entry Description
example.com Includes the example domain and all subdomains, including:
  • example.com/a
  • example.com/a/b/c
  • example.com/a?x=123
marketing.example.com Specifies the marketing subdomain in example.com.
example.com/path/ Includes all URLs under /path.

When including query parameters, only exact matches are supported:

This entry does not match the following:

  • www.a.com/a?y=1;x=2
  • www.a.com/b?y=1