Ranking factors
Ranking factors are the things a search engine weighs when it decides which pages to show first. Google explains them in its guide to ranking systems. It says automated systems look at many factors and signals across hundreds of billions of pages to find the most relevant, useful results, and it describes its systems instead of listing factors.
Source: Google Search Central, A guide to Google Search ranking systems, checked October 29, 2026
What Ranking factors means for your business
Google's guide covers what it calls some of its more notable ranking systems. It isn't complete, but it's what Google stands behind, and it's what we work from instead of the long lists passed around online.
The guide names systems for different jobs. BERT, RankBrain and neural matching help Google understand words and meaning. PageRank and link analysis look at how pages link to each other. Others handle freshness, original reporting, reviews, reliable information, removing near-duplicate results, keeping one site from filling a page, local news and spam. The guide also lists retired systems, like Panda and Penguin, whose work moved into Google's core systems.
Google says its systems are built to rank pages one by one, and that site-wide signals are used too. So a page is judged mostly on its own, with some signals that look at your whole site.
For a business, that points to plain work: a page that fully answers the buyer's question, written for people, and other sites that link to it. If someone handed you a checklist of ranking factors and your rankings haven't moved, an SEO plan built on what Google publishes is a better place to start.
Last reviewed October 29, 2026. All terms
How AI answers it today
On October 29, 2026, Google's AI Overview opened with Google's own wording, then listed top factors drawn from SEO blogs and agencies, with Google's guide as its only Google source. ChatGPT gave a top-ten list with no sources and never mentioned Google's guide.
Our run through ChatGPT and Google's AI Overview, October 29, 2026. A sample, not what every buyer sees.
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