How Does Google Rank Search Results?

The most common online answer to "how many factors does Google look at" is "200+" — but that figure has never actually traced back to Google itself. Instead, we went to Google's own How Search Works site and its official ranking systems guide.

The five signals Google says it uses

Per Google's own page, ranking results relies on five broad signal categories. The meaning of your query — Google first tries to establish what you're looking for, accounting for spelling and synonyms. Relevance of content — whether a page contains information that matches the query. Quality of content — signals of expertise, authoritativeness, and trustworthiness; one example Google gives is whether other prominent sites link to or reference the content. Usability — when other signals are roughly equal, page-experience factors like mobile-friendliness and fast loading can tip the balance. Context and settings — information like location, search history, and search settings, used to determine what's most relevant "in the moment."

The "200+ factors" myth and where it actually comes from

This figure circulates across dozens of SEO blogs, but none of them trace back to an official Google statement. Neither Google's How Search Works page nor its ranking systems guide gives a specific number — instead they describe the five signal categories above and the named systems covered next. This follows the same pattern we noted in our What Is SEO? guide: Google's own list of myths it explicitly rejects. Unverified numbers shouldn't stand in for what Google actually confirms.

The ranking systems Google actually names

In 2022, Google published an official guide to centralize information about its ranking systems in one place. The systems it names there: the page experience system, the helpful content system, the product reviews system, core ranking systems, and spam detection systems. What stands out: names commonly heard in SEO circles, like PageRank or RankBrain, don't appear on this official list. Google says it built the guide to clarify terminology and avoid confusing an "update" to a system with the system itself.

What is a core update, and what should you do about one?

Per Google's own definition, a core update is a "significant, broad change" to its search algorithms and systems, meant to strengthen its goal of delivering helpful, reliable results. These happen several times a year and don't target specific sites. Google's advice is clear: don't rely on quick technical fixes, improve content meaningfully, assess the site as a whole, don't needlessly change pages that are already performing well, treat deletion as a last resort, and wait at least a week after an update finishes before analyzing Search Console data. This framework is also a good starting point for understanding why your site isn't showing up on Google.

Conclusion

Google's ranking mechanism is far more concrete than the mysterious "200 factors" narrative in SEO folklore: five broad signal categories and a handful of named systems. This general organic-ranking framework is a different mechanism from local ranking on Google Maps, and both are separate from visibility in AI search tools (GEO). If you'd like us to assess whether your site holds up across all three surfaces, take a look at our SEO + GEO Strategy service or book a call.