To provide extreme scaling for a worldwide audience, the idea was to cache Web page data in memory after it was generated; this is the familiar data-in-memory pattern.

为了给全世界的观众提供最大的可扩展性，它采取网页数据生成后在内存中缓存的方法；这就是熟悉的内存数据模式。

youdao

That technology gives them user and Web-page data to sell in the auction.

WSJ: Online Tracking Increases, Fueled by Ad Auctions

The Web page where the data was dumped was offline for much of Thursday morning.

CNN: Yahoo hacked, 450,000 passwords posted online

Thus, even a low and slow attack that intends to exhaust system resources by continuously loading a data intensive web page can be countered automatically.

FORBES: DDoS: coming to a network near you