Google does not rank with one algorithm. It documents a set of systems, covering things like helpful content, reviews, page experience, freshness and spam detection, that work together and are updated over time.
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How to use the list
Google's ranking systems guide names the current systems and whether each is live or retired. Use it to understand what a given update targeted rather than guessing from traffic charts.
What it tells you
The list reinforces a practical point: there is no single lever. Quality, relevance, technical health and trust all feed different systems.
Common mistakes
Chasing one factor
Treating a single signal as the key tends to waste effort.
Frequently Asked Questions
Related but different. Systems are the mechanisms, and factors are the signals those mechanisms use.
Keep reading
- Ranking Factors: Ranking factors are the signals a search engine weighs when ordering results, such as relevance, content quality, links, usability and context.
- Search Algorithm: A search algorithm is the set of systems a search engine uses to decide which indexed pages answer a query and in what order to show them.
- Google Core Update: A Google core update is a broad change to Google's main ranking systems, announced several times a year, that can shift rankings across many sites.
- Helpful Content: Helpful content is Google's term for people-first content made to serve readers, not to rank. The idea now lives inside Google's core ranking systems.
- Algorithmic Penalty: An algorithmic penalty is a ranking loss caused by Google's automated systems, with no notice in Search Console and no reconsideration request.
- Baidu: Baidu is the leading search engine in mainland China. Ranking there requires Simplified Chinese content and usually local hosting and licensing.
- BERT: BERT is a language model Google applied to Search in 2019 to understand how word order and small words change the meaning of a query.
- Dwell Time: Dwell time is how long a searcher stays on a page after clicking a result before returning to the results. Pogo-sticking is bouncing straight back and clicking another result.
