You ran your site through an SEO tool and saw the big number: 47. Or 82. So what exactly does an SEO score measure, who calculates it, and what should you do if it's low? This article explains the logic behind the score and the most efficient path to raising it. If you don't know your own score yet, start with the free SEO test — it takes a few seconds.
What is an SEO score?
An SEO score is a numeric summary from 0 to 100 of how healthy a website is in terms of search engine optimization. The tool scans your site technically and content-wise, assigns each check a weight, and the weighted sum of the checks you pass becomes your score.
One important distinction: an SEO score is not a Google score. Google doesn't hand out grades; the score is a health indicator computed against the tool's own checklist. But because a well-designed checklist overlaps heavily with the signals Google cares about, a low score almost certainly means your visibility is suffering too.
How is the score calculated?
In our tool, the score is the weighted result of 24 checks in 4 categories:
- Meta tags (30 points): Title, meta description, canonical, indexability — the tags that form the page's identity.
- Content (28 points): H1 structure, image alt texts, word count, internal links.
- Technical (32 points): HTTPS, sitemap, robots.txt, speed, compression.
- Social & structured (10 points): Open Graph, JSON-LD structured data, Twitter Card.
Critical checks (like title or H1) carry more weight; partially-correct items count as "warnings" worth half points. Checks that don't apply to your site (like alt text on a page with no images) are excluded so they can't unfairly drag the score down.
What does each range mean?
- 90–100 (Excellent): The technical base is ready. Put your energy into content production and authority (backlink) building.
- 70–89 (Good): A few gaps; usually one or two days of work gets you into the 90s.
- 50–69 (Average): Gaps that concretely limit your visibility. Close the high-weight "failed" items first.
- 0–49 (Poor): The site was likely built on old infrastructure or with no SEO thought at all. Often the most economical fix is building an SEO-friendly site from scratch.
The most efficient order for raising your score
- Indexability: One wrong
noindexzeroes out everything — verify this first. - Title and meta description: Unique, keyword-bearing titles and descriptions on every page. Highest impact-to-effort ratio.
- H1 and heading hierarchy: One H1 per page, logical H2/H3 structure.
- HTTPS and redirects: Install SSL, move http traffic to https with 301s.
- Sitemap + robots.txt: Create them, reference the sitemap from robots.txt, submit to Search Console.
- Speed: Compress images, enable caching; site speed is both ranking and conversion.
- Content depth: Merge or expand thin pages; sub-300-word pages struggle to rank.
After each fix, re-run the test and watch the score climb — that's how you see exactly which step worked. To run the full audit yourself, see How to Do an SEO Analysis.
Frequently asked questions
Different tools give different scores — which is right? All of them, by their own checklist. What matters is sticking to one tool and tracking progress against the same yardstick.
If I hit 100, will I rank first? No — 100 means "the technical ground is flawless." Rankings are decided by the content you build on that ground and the authority you earn.
How often should I check the score? After every structural change, and monthly as a routine. If you see a drop, a recent change is usually the culprit.
Learn your score and see the gaps: free SEO test. If you'd rather not close the list yourself, let the Lumic team handle every item — from technical SEO to content structure.