hey dude , it seems that it can not block the https website ,

You can block using these sites using the app control rather than the URL filter. See how you get on

Hi

The built-in app control has limited app selection. We hope TP-Link can soon adjust the list of all app that needs to be blocked.
Also, some countries have different requirement for blocking app.

We hope TP-Link can survey the requirements from their customer all over the world and come up with an updated app database
because there are so many apps that needs to be added and blocked to give more control to the admin and limit users in order
to emphasize productivity in the office using the app control blocking feature of the TP-Link load balancers.

This gives additional value to the product without added cost.