How does Google search rank pages?
The three fundamental ranking factors explained simply
Three factors dominate how Google decides where a page ranks. Relevance: does the page's content actually cover what the searcher is looking for, and is that clear from the title, headings, and body text? Authority: does the site and page have credibility signals — links from other trusted websites, a history of being found useful by searchers, clear authorship — that suggest it's a reliable source on this topic? Experience: does the page load quickly, work on mobile, and deliver what it promises once a visitor arrives? All three must be reasonably strong for a page to rank well on competitive queries.
What Google cannot evaluate in rankings
It's worth understanding what Google's ranking systems deliberately don't measure, partly because this clears up some common misconceptions. Google has stated explicitly that it doesn't evaluate a page's political viewpoint or opinion — it can't and doesn't try to rank 'correct' opinions higher. It doesn't evaluate the price of the product being sold, who owns the website, or how much you've spent on advertising. Rankings are based on the signals above, not on a subjective assessment of the business behind the site.
How Google's ranking changes over time
Google makes thousands of algorithm adjustments each year — most are small and unnoticeable, but several times a year it releases 'core updates' that represent meaningful changes to how it weighs the factors above. Sites can gain or lose rankings significantly during a core update without doing anything themselves — what changes is Google's assessment of what qualifies as the most useful result for particular types of query. The practical implication is that SEO is never 'done': regularly reviewing whether your pages still represent the best available answer for what they're targeting is how you protect rankings over time.
Key Takeaways
- Google's three core ranking factors are relevance, authority, and experience.
- Rankings are based on measurable signals, not subjective assessments of quality.
- Thousands of small updates happen annually; 'core updates' periodically significantly shift rankings.