NextDNS can also do logging, of both allowed and blocked DNS requests. These customized profiles can have their own block/allow lists. NextDNS allows you to create customized DNS profiles for a group of your devices, for a single device or even just for a single browser on one device. You do not need an account to use NextDNS but there are advantages to creating one such as using Secure DNS and configuring block/allow lists. My personal preference is NextDNS which blocks ads and trackers.In April 2020, Cloudflare introduced two filtering DNS services. Cloudflare offers three different DNS services.The main Quad9 service offers malware protection.To test which DNS system/servers your computer is using, see the many available tester pages on the Test Your DNS page. That said, the two secure DNS flavors use different TCP ports, so they could both be available on a single server. Typically a company offers one server for DoH and another for DoT.

New Secure DNS is specified with a server name. Old insecure DNS is specified with IP addresses (normally two of them). DNS can be a great way to get ad blocking, tracker blocking and/or malware blocking without having to install software. Some options are below, the list is far from complete. There are many choices for DNS providers and the default, using DNS servers from an ISP, is the worst option.

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