Learn

Where to start

If you are not sure which of these applies to you, work in dependency order — the order the problems actually stack in, rather than the order they are easiest to fix.

1. Can Google reach the page? Nothing else matters until this is yes. Why a site is not showing up on Google covers the nine causes in order of how often they turn out to be it.
2. Has it reached the page and declined to index it? A different problem with a different fix — crawled, currently not indexed, and what each Search Console status actually means.
3. Is it indexed but not ranking? Now the on-page work is worth doing. Start with how to check whether a site is SEO optimized.
4. Is it ranking but slow? Speed is a tiebreaker, not a foundation, which is why it comes fourth — diagnosing slow page speed.

Most of the guides end with the free tool that checks the thing they describe. You can also go straight to the tools index and pick by symptom, or run a full site check first and let the report tell you which guide you need.

How these guides are written

Every claim here is either something the checker measures directly or something documented by Google, Bing or the browser vendors — and where the honest answer is “nobody outside Google knows,” the guide says that rather than filling the gap with a confident guess. Retired tools and deprecated advice get marked as retired instead of quietly left in, because stale SEO advice is the most common kind.

There are no publication dates on these pages on purpose. They are reference material, updated when the underlying facts change rather than on a content calendar, and a visible dateline on “what is a good SEO score” only ages in the search results. The blog is where dated, of-the-moment writing lives, and about explains who is behind the tool and how it makes money.