Legacy Referrer Checking

This behavior limits allowed requests to a set of domains you specify.

Features and options


What it does



Enables or disables the referer checking behavior.

Include Child Domains

Includes child domains among the allowed referrers. For example, if the Domain is example.com, referrers that have a domain names that match the *.example.com pattern (like site1.example.com or www.example.com) are allowed. This is equivalent to prefixing each item in Domain with *..


  • Yes
  • No

Strict Referrer Checking

When enabled, excludes requests whose Referer header include a relative path, or that are missing a Referer. When disabled, only excludes requests whose referer hostname is not part of the domains set.


  • On
  • Off


Specifies the set of allowed domains. With Include Child Domains disabled, prefixing values with *. specifies domains for which subdomains are allowed.

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