anyteamnames dot com slas blog slash
how-to-tell-if-a-last-name-is-jewish/
https://anyteamnames.com/blog/how-to-tell-if-a-last-name-is-jewish/
How to tell if a last name is Jewish
Last names only existed recently in Jewish history when political rulers made them mandatory for tax purposes one such ruler being Napolean
That means a last name of Levi or Cohen does not prove ancestry from a priestly line
However one might adopt a last name of Levi or Cohen in modern history if one wanted people to believe they came from a priestly line
1787 Austria
https://anyteamnames.com/blog/how-to-tell-if-a-last-name-is-jewish/