Problem with safesearch

[DevilX23]

hi
i'm newby. i read many link for this problem
i have this problem with pfsense , i can't block safesearch the problem are the policy of google

https://support.google.com/websearch/answer/186669?hl=en

i can resolve this problem on pfsense,  i've installed 2.1 release, squid3 e squidguard, also  i tried with dansguardian
but without solution

i hope someone help me , and explain me the solution tnx a lot