This post is about IDN (International Domain Names) and browser support in 2019, 5 years after the previous one. And hopefully, I’ll publish this one faster than the previous one.
Android
In 2019, Android has a lot of browser, but I only looked at a few of them:
Chrome
Perfect

Firefox
Perfect

Edge
Perfect

DuckDuckGo
Not properly displayed (Yes, they have a browser)

It’s even worse, if you type only ‘tpî.eu’, you get redirected to the search engine, not the famous site. You need to type the full https://
But I get it, for a privacy oriented browser, it’s probably more important to prevent phishing than to play nice with IDN
iOS
Tests were done on an iPad.
Safari
Perfect

Chrome
Perfect

Firefox
Not properly displayed

It’s working on Android but not on iOS… Why?
Edge
Not properly displayed

It’s working on Android but not on iOS… Why?
DuckDuckGo
Not properly displayed

PC
Windows 10, fully patched, all is perfect
Chrome
Perfect

Firefox
Perfect

Edge
Perfect

Internet Explorer
Perfect

Mac
All browsers work fine
Safari
Perfect

Chrome
Perfect

Firefox
Perfect
