Ah well, in fact nothing at all (*).
And no, this link did not lead you to the "soft porn" site https://www.victoriassecret.com/ (I'm kidding, it's a bra well known and reputed e-commerce site). But the next one will (I was just double-checking).
(*) We could be discussing the design of the site, the overall architecture and its quality attributes (of the site, I mean), for instance, performance, scalability, maintainability, supportability, etc, but... No really.
(2016-07-28: Updated to include this very well designed site: https://womensecret.com/pt/en/homepage; no links, we don't want to be indexed for the wrong reasons)