What an SEO score measures
An SEO score is a rollup of on-page signals — whether your title and meta description are present and well-formed, whether headings are structured, whether you have canonical tags, structured data and are indexable. It's a snapshot of how well a single page follows on-page best practices.
It does not directly measure your rankings, backlinks or authority — those are off-page factors a page-level scan can't see. Treat the score as a checklist of what you control on the page.
What counts as good
On a 0–100 scale, 90+ is excellent and 70+ is solid. But the number depends entirely on the checks behind it — a lenient tool that only looks at a title tag will hand out 90s freely, while a strict one that also weights indexability and structured data is harder to satisfy.
That's why a 75 on a demanding scorer can mean more than a 95 on a shallow one. Look at what's actually being checked, not just the digit.
Why tools disagree
Different SEO checkers weight different things, so scores vary. One may punish a missing meta description heavily; another may ignore it and focus on speed. None of them can see the off-page authority that ultimately drives rankings.
The practical takeaway: don't chase a specific number across tools. Pick one checker, fix the concrete issues it surfaces, and use the score as a relative before-and-after gauge.
How to raise your score
Start with fundamentals that are often missing: a unique, well-sized title and meta description, a single clear H1, a logical heading outline, a canonical tag, and structured data. Then confirm nothing is blocking indexing.
WebAnalizer's free SEO checker shows exactly which of these you're missing and scores them alongside performance, accessibility, security and AI readiness — so you fix the real problems instead of guessing.