Google officially uses over 200 ranking factors, with thousands of variations layered on top. You don't need to chase every one. You need to know the four big buckets they fall into, which ones actually move the needle, and which ones are myths that waste your time. This page walks you through both, with a priority order you can use starting tomorrow.
The phrase "ranking factors" makes people think there's a secret checklist, and if you just tick every box you'll rank. There isn't. Google's ranking system is a weighted score, not a pass-fail test.
Different queries weight the factors differently. "How to tie a tie" weights helpful content and dwell time heavily. "Best mortgage rates" weights authority and trust heavily because it's a money-or-your-life topic. "Plumber near me" weights local signals heavily. You can't just optimize "for SEO." You optimize for the type of query you're trying to win.
Think of ranking factors as ingredients. Some queries want a lot of one, some queries want a balance, and a few are allergic to whole categories. Your job is to figure out the recipe for your specific query.
Every one of Google's hundreds of signals falls into one of four buckets. Master the buckets, then zoom in where you need to.
Is the page about the thing the user searched for. Early Google answered this with keyword matching. Today it uses entity understanding and semantic analysis, which is a fancy way of saying "it knows what you mean, not just what you typed."
If someone searches "coffee maker replacement parts," relevance signals check whether the page mentions coffee makers, replacement parts, brands, the specific parts, related topics like descaling, and the natural vocabulary an expert would use. Stuffing "coffee maker replacement parts" into a paragraph sixteen times used to help. Today it hurts.
How you move it: write for humans on the actual topic, cover subtopics naturally, match the intent of the query (informational, navigational, or transactional).
Does the rest of the web treat this site as credible. The single biggest authority signal is backlinks, when other sites link to yours. A link from a well-regarded site in your industry is a vote. More votes from better sites equals more authority.
Authority also includes E-E-A-T: experience, expertise, authoritativeness, trustworthiness. Google wants to know a human with credentials wrote the page, especially for health, finance, and legal topics. Author bios, credentials, citations to original sources, and a site that clearly shows who runs it all feed this.
How you move it: earn backlinks with content worth linking to, build a recognizable brand, publish under named authors, cite sources.
Is the page actually pleasant to land on. Google uses Core Web Vitals to measure three things: how fast it loads, how quickly it becomes interactive, and whether it jumps around while loading. It also checks mobile-friendliness, HTTPS, and whether you bury the content behind pop-ups.
Experience on its own won't rank a bad page. But a great page with a broken experience loses to an equally-great page with a smooth one. Think of it as a tiebreaker that becomes a dealbreaker at the extremes.
How you move it: optimize images, remove render-blocking scripts, pick a fast host, test your page on a real phone on a slow connection.
What do past searchers do with this result. Google doesn't publicly admit to weighting clicks and dwell time directly, but every SEO with a data set says they matter. If people click your result and immediately bounce back to Google to click the next one, that's a pogo-stick. It tells Google your page didn't satisfy them.
The other side: if people click, read, take their time, and don't come back to search for alternatives, that's satisfaction. Google notices.
How you move it: write titles and descriptions that match the page (so clicks don't feel bait-and-switch), answer the query completely (so people don't bounce), format for easy scanning.
After years of Google shifting what it weights, here's what the current machine cares about most. Ranked roughly by leverage, based on what correlational studies and Google's own patents confirm.
If you're running SEO on a site, here's the order to spend your attention in. Each layer depends on the ones below it.
This order surprises people because they want to start at the bottom, where the tactics are concrete. But fixing speed on a page that doesn't match intent is like sharpening a pencil to lift a car. Intent first. Then quality. Then everything else.
Pick one page on your site that you wish ranked higher. Run it through the priority order above, top to bottom, and stop at the first one that's broken. Fix that. Only that. Then come back a month later and check if it rises. That's how real SEO work is done. One page, one bottleneck, one fix, one observation, repeat.
Next: SEO vs SEM vs SMO, because knowing what SEO is not is just as important as knowing what it is.