Extract URL domain root in Excel and Google Sheets
=LEFT(A2,(FIND(".com/",A2,1)+3))
=LEFT(A2,(FIND(".com/",A2,1)+3))
=LEFT(A2,(FIND(".com/",A2,1)+3))
=REGEXEXTRACT(A2,"^(?:https?://)?(?:[^@\n]+@)?(?:www\.)?[^:/\n?]+")
=LEFT(A2,(FIND(".com/",A2,1)+3))