I had configured my website (adotar.com.br) on Cloudflare DNS, all looked ok.
But I started receiving some complains from users, because they wasn`t able to navigate.
So I noticed: when users tried to access from IPv6, it was ok… but when we used IPv4 connections, the website didn`t work.
Currently not using Cloudflare nameservers.
However, I wonder how much time passed after you changed your nameservers at your domain registrar?
If you recently changed your domain nameservers, regular DNS propagation time usually takes up to 24-48 hours to complete.
Furthermore, might be either due to some temporary cache at visitor’s Web browser/device. Otherwise, maybe something with the ISP over mobile provider(s) at the moment?
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