21CTO

Nov 19, 2017 · Fundamentals

Demystifying PageRank: How Google Ranks Web Pages and Fights Spam

This article explains the core challenges of search engines, the origins and mechanics of the PageRank algorithm, its handling of dead ends and spider traps, extensions like Topic‑Sensitive PageRank, and the various link‑spam attacks and countermeasures such as Spam Farms and TrustRank.