Quad9 - Quad9 is a free, recursive, anycast DNS platform that provides end users robust security protections, high-performance, and privacy.
Gotty - GoTTY is a simple command line tool that turns your CLI tools into web applications.
NextDNS - Block ads, trackers and malicious websites on all your devices.
Pagekite - Bring your localhost servers on-line.
OpenDNS - OpenDNS provides faster and safer Internet access for your home or Business.
tmate - Tmate is a instant terminal sharing based on ssh.