www.bar.com is a portal (about bars.)
www.sample.com is a travel agent.
It used to be that email@example.com was actually some guy's email address, and he used to post the wacky accidental test mails he would get. He was also the owner of sample.com and a few others, and he use to post porn on them just to fuck with people who didn't change the default URLs in their "home page builder" software.
The Wayback Machine doesn't know about these old pages.
Bummer that it's all gone!