That’s somewhat debatable. A site which uses https and requires TLS 1.2 or later, as is common/good practice today, will not work with a 13 year old device. (TLS 1.2 RFC was published Aug 2008.)
Unfortunately, those are few and far between.
Re:We Fix: A DIY Manifesto (2014)
by forgotmypw17 on Wednesday November 25, 2020 @01:05PM
(#25212177)
It's true, we're currently in a valley of compatibility. I think it's only up from here. More and more people talk about making the Web accessible again.
This is why I love the Web so much.
A properly designed site will still work with a 20-year-old device.