I have activated weblocker for adult categories, it works for sites. but if I do a search on google images no, any ideas? I have already activated "Enforce search" strict
Google images is a bit of a gray area, it loads the images after the page loads. Safesearch is a google option (the proxy is just forcing it -- having it on doesn't guarantee that google won't show anything they don't consider safe.)
I'd suggest using webblocker categories to block sites and categories that you don't want to allow, and ensure that inspection is enabled for the https proxy.
WatchGuard Customer Support
The "Safe Search" doesn't really do much for Google Images. Works great for Bing though.
You will need to edit your DNS servers in order to force Safe Search for google.
This should point you in the right direction.https://support.google.com/websearch/answer/186669?hl=en
It's usually something simple.
thanks for the suggestions, of course I have already activated weblocker rimne only the change of DNS.