[Cthoma]

It's designed quite badly to be honest.

9.9.9.9 is allegedly with security features. 9.9.9.10 does not have any security features.

People will put 9.9.9.9 in the Primary DNS, 10 in the secondary in many of OSes.

Also What is Quad9 resolves to a video rather than a quick explanation. There is almost no information that this is a DNS server service on landing.

>It's easy to setup Quad9 on your Mac or PC. Watch the video for your operating system.

Where is Linux? I doubt people who are using those OSes will bother changing their dns.

[_jal]

I have a new rule: if I have to watch a video to understand the 'value proposition' or even what something does, I will close the browser tab and keep looking.

Video is not documentation.

[blfr]

Product presentations aren't even the worst offenders. The absolute worst are providers doing "webcasts" in lieu of writing actual user documentation.