unitsukraine.blogspot.com/2021/09/nitter-twitter.html was not found in the database.
However, blogspot.com was found.
This domain is in the Safety Table
The safety table process is designed to protect domains from accidental recategorization. The category for domains like google.com, amazon.com, and paypal.com are hard coded into the safety table. All manual or automatic categorization changes on the master database are checked against the safety table prior to the update being released, changes for domains that conflict with the safety table are discarded. The safety table is only changed by a manual process after careful review and consideration.