Cron job to blacklist site

[yubiuser]

I'm not sure why it doesn't work via cron.

You could try another approach: create a group with the desired domains and clients and activate/deactivate based on cron. Others used this successfully

Activate group with cron

Hello, I'm looking for a way to activate a group from 9 a.m. to 6 p.m. and have it deactivated from 6:01 p.m. to 8:59 a.m. with school at home I want to block social media during school hours. Thank you in advance for your help.