Recently I've logged into my Webmaster Tools and noticed that I still got verifications on some of the sites that I do not own anymore, for like several years already. It suddenly brought multitude of questions to my mind, for example there were sites that I did together with some ex-partners, that I do not communicate with anymore, because of personal reasons. Does this mean that they still own some rights to my sites from Googles point of view? Shouldn't verification auto expire at some point in time?
Does verification that owner of domain undergo on Google ever expire?
google apps;domain