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.
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.
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.
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.
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.
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.
| 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 |
No signup. Works on any public page — yours or a competitor’s.
240+ checks run in parallel and roll up into a score for each pillar of SEO health.
Your weakest pillars surface first, each issue ranked by impact with the fix attached.
An SEO checker analyses a web page and scores how well it’s optimised for search. SlapMyWeb’s checker runs 240+ checks and returns a 0–100 score for each of 11 pillars — on-page, technical, content, speed, mobile, schema, links, international, authority, AI-search and crawl/indexation — so you can see exactly where a page is strong and where it’s bleeding rankings.
Each pillar is scored from the checks inside it, then weighted by how much it influences rankings (content 17%, crawl/indexation 14%, on-page 14%, mobile & UX 11%, performance 10%, links 10%, and so on) into a single 0–100 headline score. Core Web Vitals use Google PageSpeed v5 lab data plus real-user CrUX field data.
Yes — enter a URL and see the full score and every issue with no signup. Free accounts add 30-day history. Pro ($9) unlocks the copy-paste fix code, unlimited checks and clean PDF exports.
Any public website. The checker needs no verification, so you can score a competitor, a client, or a prospect’s site as easily as your own.
As a rule of thumb: 80–100 is strong and mostly needs fine-tuning, 60–79 has clear wins to capture, and below 60 means structural issues are actively holding the page back. The checker always shows the fastest points to recover first, so the number is actionable rather than just a grade.
Yes. Mobile usability, viewport and tap-target checks run on every scan, and Core Web Vitals (LCP, CLS, INP) are measured against Google’s pass/fail thresholds using both lab and real-user field data.
Enter a URL. 30 seconds. A pillar-by-pillar score and the fixes to climb it — free, no signup.