Free SEO Score Checker
Ten checks, one score, zero guesswork. NToolHub's free SEO Score Checker grades your pasted HTML against the ten on-page fundamentals — title, description, headings, alt text, canonical, viewport, lang, Open Graph and content depth — with prioritized, actionable fixes. It's the fastest technical audit you'll run all week.
How to Use the SEO Score Checker
- Paste the page HTML and click Analyze.
- Review your score out of 100 and the per-check breakdown.
- Fix red items first — they carry the most weight.
- Re-run after changes to watch the score climb.
Features
Paste any page's HTML for a 0–100 score across ten weighted checks, each with pass/warn/fail verdicts and specific fix instructions: title length (with pixel measurement), description, H1 uniqueness, subheading structure, image alt coverage, canonical, viewport, lang attribute, OG tags and word count.
Benefits & Use Cases
A single prioritized scorecard turns vague 'optimize this page' tasks into a concrete fix list ordered by impact. Teams use it as a pre-publish gate so no page ships with missing titles, duplicate H1s or empty descriptions.
Tips
Fix red (failed) checks first — they carry the most weight — then amber warnings. Re-run after each round of fixes; aim for 90+ before publishing, and re-audit quarterly as templates change.
Frequently Asked Questions
What does the SEO score measure?
Ten on-page fundamentals: title, meta description, H1 usage, subheadings, image alt coverage, canonical, viewport, HTML lang, Open Graph tags and content length — weighted into a 0–100 score.
Is a perfect 100 required to rank?
No. The score measures on-page hygiene, not authority or content quality. But pages scoring under 50 almost always have fixable issues holding them back.
How often should I check pages?
Audit templates whenever they change, new pages before publishing, and your top-traffic pages quarterly.
Does this check off-page SEO?
No — backlinks, authority and technical crawl factors need separate tools. This covers what you can fix directly in the page HTML.
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