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Block IP Range -Fake whatsapp website

Dear all,

There are a large number of fake "whatsapp web" pages at the top of Google search currently.

I saw that the IP range is:  104.21.x.x  or  the URL is    https://uaa.xxxxxxxx   / https://wh9.xxxxxxxx

Is there a more effective to block the IP range  104.21.0.1 - 104.21.255.255   or https://uaa.xxxxxxxx   / https://wh9.xxxxxxxx

Thx



Added tags
[edited by: Gladys at 6:26 AM (GMT -7) on 27 Oct 2023]