[cbr]

    your password manager's url comparison?

Better than manual url comparision! A surprising number of humans think things like www.goodcompany.evil.com are urls for "Good Company", and anyone can screw up and make mistakes checking urls (www.goodcomany.com).

[ksenzee]

Add Unicode and it gets worse. I don't trust my eyes to differentiate between Cyrillic а and Latin a. https://en.wikipedia.org/wiki/IDN_homograph_attack

[cbr]

Browsers only display unicode in domain names if the TLD has restrictions on character sets that prevent homograph attacks.

See https://en.wikipedia.org/wiki/IDN_homograph_attack#Defending...