I use who.is a lot and the only "history" I know of is essentially cached records, which are updated as soon as you visit the page if they are older than a day or two.I think who.is either does or used to have whois history.
There's a History button right in between "Website Info" and "DNS Records":I use who.is a lot and the only "history" I know of is essentially cached records, which are updated as soon as you visit the page if they are older than a day or two.