I have a strange problem with this domain

[majedmz]

I have a strange problem with this domain
https://schools.madrasati.sa/
It is not on the blocked list, but it is blocked and I cannot access it at all
What do I do? Is there help here?

[amrmzr]

Add your blocked website in custom filtering like below given to unblock it
e.g
@@||www.schools.co^$important

[majedmz]

Thankyou
I added to allow list but not working
problem is still

[amrmzr]

I can't access it either.
can you confirm if it is geographically blocked or not using VPN?
and I tried to check if its Host is up using Nmap & its NOT, maybe wrong address.

thanks!