Check your SEO score instantly
Free SEO checker — enter any URL and get a 0–100 score broken down pillar by pillar, with every issue ranked by impact and the exact fix beside it. Instant. No signup.
An SEO checker is a tool that fetches a page, measures it against the signals search engines use, and reports what is wrong. SlapMyWeb scores eight weighted pillars — speed 20%, SEO 18%, security 15%, mobile 12%, design 10%, accessibility 10%, best practices 8% and content 7% — so you can see exactly which part of the score you are losing.
Every signal Google grades, scored in one pass.
The checker doesn’t just say "your SEO is bad." It scores each pillar 0–100 so you know exactly where you’re losing points — and what to fix first.
On-page SEO score
The checker reads your title, meta description, headings, URL structure and keyword targeting and grades how well each page is optimised for the term it’s trying to rank for.
- On-page SEO74
- Performance48
- AI search31
- Title & meta: length, uniqueness, keyword match
- Heading hierarchy and H1 presence
- Keyword density and cannibalisation
Technical & speed score
A live crawl grades crawlability, indexation and real Core Web Vitals from Google PageSpeed + CrUX, so you see the technical health score the way Googlebot experiences it.
- Core Web Vitals (LCP, CLS, INP) vs thresholds
- Indexation, canonical and robots checks
- Redirect chains and broken-link count
- HTTPS, HSTS and mixed-content flags
Mobile, schema & structured data
Mobile usability, tap targets, viewport and every JSON-LD block are validated against rich-result eligibility — the structured-data score that decides your rich snippets.
- Mobile-friendliness and tap-target sizing
- Schema.org validation per @type
- Rich-result eligibility (FAQ, Product, Article)
- Breadcrumb and Organization markup
AI search & authority score
The checker also grades whether AI engines can cite you and how strong your off-page authority signals are — the two scores most SEO checkers never show you.
- AI crawler access (GPTBot, PerplexityBot, ClaudeBot)
- Citable content structure for AI Overviews
- EEAT: author, freshness, outbound citations
- Entity and brand-mention signals
vs other SEO checkers
| Feature | SlapMyWeb | SeOptimer | Free grader tools |
|---|---|---|---|
| 0–100 score | Yes — per pillar | Yes — A–F grade | Single grade |
| Checks run | 240+ | 100+ | ~30 |
| Real Core Web Vitals (field data) | Yes — CrUX | Lab only | Rarely |
| AI search score | Yes | Partial | No |
| Fix code included | Yes | No | No |
| Signup to see result | No | Email gate | Usually |
From URL to SEO score in one click
- 1
Enter your URL
No signup. Works on any public page — yours or a competitor’s.
- 2
We score 8 pillars
240+ checks run in parallel and roll up into a 0–100 score for each of the eight scored pillars.
- 3
See where you lose points
Your weakest pillars surface first, each issue ranked by impact with the fix attached.
Questions, answered straight
See your
SEO score.
Enter a URL. 30 seconds. A pillar-by-pillar score and the fixes to climb it — free, no signup.
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