Stripe Checkout now supports embedding

Is it really Stripe? If so, WHY not using the Stripe domain name and make us triple check that the website is legit? :(

It seems to be an example website, but with my payment information… Could someone have made this website just to get payments from people thinking it’s a legit example page from Stripe?

"copyright 2010 /dev/finance inc", the company name before they became Stripe. So this is historic?