I was surprised today to find out that Firefox was using my ISP’s DNS server — even though I had a local Pi-hole set up to use Cloudflare’s 1.1.1.1. It was my mistake. When I set up Pi-hole in my router’s DHCP settings, I forgot about DHCPv6. Once I added the local IPv6 address of my Pi-hole as the DNS server for DHCPv6, my ISP’s DNS server stopped showing up in the test. ...
Let’s say you have a Samsung phone. You connect to a Wi-Fi network and get a notification saying: [Wi-Fi name] has no internet access This could happen because your phone isn’t getting DNS responses for certain domains, such as: www.google.com google.com connectivitycheck.gstatic.com play.googleapis.com www.goooooooooooooooooooooooooooooooooooooooooooooooooooooooooogle.com (not a joke) …and a few others. You can find the full list by capturing the DNS queries your phone makes when connecting to Wi-Fi. ...