true This is a Bing search, we will use a redirect rule to redirect it to Safe Search .*\.bing\..* \/search 1,31 0,23 0,59 absolutetime BING_SEARCH,UNSAFE_BING_SEARCH true This is a Bing search, we will use a redirect rule to redirect it to Safe Search BING_SEARCH &adlt=strict$ 1,31 0,23 0,59 absolutetime UNSAFE_BING_SEARCH true true Redirect unsafe Bing search to SafeSearch UNSAFE_BING_SEARCH (.*) $1&adlt=strict 0 true both