AlgorithmsHow Baidu’s named algorithms work
Baidu is unusual among search engines in naming its algorithms, publishing what each one targets, and maintaining a single consolidated…
Algorithms
AlgorithmsQingfeng: title spam and download traps
Qingfeng (清风) began as an algorithm against title deception and, from version 2.0, targets deceptive downloads. Baidu’s definition of a…
AlgorithmsFenghuo: hijacking and back-button abuse
Fenghuo (烽火) targets hijacking of the user’s journey — specifically, interference with the back button and unexpected redirection on mobile.…
Lantian: sold directories and news-source trading
Lantian (蓝天) targets a specific commercial abuse: news portals and authoritative sites selling their directories or their news-source status to…
AlgorithmsJinglei: click manipulation
Jinglei (惊雷) targets click manipulation — artificially inflating click-through and behavioural signals to lift ranking. It sits in Baidu’s “fair…
AlgorithmsXiyu: B2B low-quality content
Xiyu (细雨) governs B2B and supply-and-demand directory sites. It targets two things: misleading titles, and contact details smuggled into content.…
AlgorithmsJinfeng: aggregation page spam
Jinfeng (劲风), launched February 2020, targets abusive aggregation pages. Baidu defines an aggregation page precisely: a page with no main…
AlgorithmsJuifeng: scraped and collected content
Hurricane (飓风) is Baidu’s algorithm against scraped and collected content. Version 2.0 defines four distinct offences, and the distinctions matter…
AlgorithmsBingtong: intrusive mobile advertising
Bingtong (冰桶) is Baidu’s mobile landing-page experience algorithm, and it is the one with the most published detail behind it:…
AlgorithmsLvluo: bought links and link trading
Lvluo (绿萝) is Baidu’s link-trading algorithm, launched in 2013 and upgraded to 2.0 the same year. It targets bought and…
AlgorithmsShiliu and Tianwang: ad-heavy pages and data security
Two older algorithms that established principles Baidu still enforces through their successors. Shiliu (石榴) — the low-quality page algorithm Launched…