RAX45 issues

Thanks for responding.  I have been unable to block ANY site I configure.  Examples: https://paid.outbrain.com  http://paid.outbrain.com  paid.outbrain.com  All entered per instructions page 44 of the manual (below).  None are blocked.  Web browsers can connect, ping responds.  I should mention that I'm a retired IT tech, have configured many routers for many remote users over the years.  I'm hoping someone has successfully used this function and can let me know what I'm missing in configuring.  I'm not above making a stupid mistake with a new model router... 🙄  Maybe users here could set it up to test and see if they can make it work.  I suspect no one can.  Any feedback welcome.  Thanks!

   4. Select ADVANCED > Security > Block Sites.
The Block Sites page displays.
5. Select a keyword blocking option:
• Per Schedule. Turn on keyword blocking according to a schedule that you set.
For more information, see Schedule when to block Internet sites and services on
page 49.
• Always. Turn on keyword blocking all the time, independent of the Schedule
page.
6. In the Type keyword or domain name here field, enter a keyword or domain that
you want to block.
Control Access to the Internet 44 User Manual
Nighthawk AX6 6-Stream AX4300 WiFi Router
For example:
• Specify XXX to block http://www.badstuff.com/xxx.html.
• Specify the domain suffix (for example, .com) if you want to block only sites with
a domain suffix such as .com. In such a situation, sites with domain suffixes such
as .edu and .gov are still allowed.
• Enter a period (.) to block all Internet browsing access.
7. Click the Add Keyword button.
The keyword is added to the keyword list. The keyword list supports up to 32 entries.
8. Click the Apply button.
Keyword blocking takes effect.