Computer Configuration > Administrative Templates > Microsoft Edge
Both
HKLM\Software\Policies\Microsoft\Edge
Define a list of sites, based on URL patterns, that are blocked (your users can't load them). Format the URL pattern according to https://go.microsoft.com/fwlink/?linkid=2095322. You can define exceptions in the 'URLAllowlist' (Define a list of allowed URLs) policy. These policies are limited to 1000 entries; subsequent entries are ignored. Note that blocking internal 'edge://*' URLs isn't recommended - this may lead to unexpected errors. This policy doesn't prevent the page from updating dynamically through JavaScript. For example, if you block 'contoso.com/abc', users might still be able to visit 'contoso.com' and click on a link to visit 'contoso.com/abc', as long as the page doesn't refresh. If you don't configure this policy, no URLs are blocked. This policy does not work as expected with file://* wildcards. Example value: contoso.com https://ssl.server.com hosting.com/bad_path https://server:8080/path .exact.hostname.com custom_scheme:* *