Technitium DNS Server is an open source authoritative as well as recursive DNS server that can be used for self hosting a DNS server for privacy & security. It works out-of-the-box with no or minimal configuration and provides a user friendly web console accessible using any modern web browser.

Nobody really bothers about domain name resolution since it works automatically behind the scenes and is complex to understand. Most computer software use the operating system's DNS resolver that usually query the configured ISP's DNS server using UDP protocol. This way works well for most people but, your ISP can see and control what website you can visit even when the website employ HTTPS security. Not only that, some ISPs can redirect, block or inject content into websites you visit even when you use a different DNS provider like Google DNS or Cloudflare DNS. Having Technitium DNS Server configured to use DNS-over-TLS, DNS-over-HTTPS, or DNS-over-QUIC encrypted DNS protocols with forwarders, these privacy & security issues can be mitigated very effectively.

Be it a home network or an organization's network, having a locally running DNS server gives you more insights into your network and helps to understand it better using the DNS logs and stats. It improves overall performance since most queries are served from the DNS cache making web sites load faster by not having to wait for frequent DNS resolutions. It also gives you an additional control over your network allowing you to block domain names network wide and also allows you to route your DNS traffic securely using encrypted DNS protocols.

A browser extension to display the page's server flag in the toolbar area indicating the current webserver's physical location.

This is done by comparing the IP range with an offline database from MaxMind's GeoLite (there is no server interaction to get the info).

Knowing the server location adds an extra layer of awareness to your browsing and is useful to indicate the native languages and legal jurisdictions that may apply.

Additional information about Geolocation or Whois info can be obtained via the left- and right-click on the action icon.

Also has a selection of other tools, ping, traceroute, SSL checker, DNS, server status and more.

Free DNS Hosting, Dynamic DNS Hosting, Static DNS Hosting, subdomain and domain hosting.