Free SEO Checker
Paste your page HTML and get an instant SEO score with 10+ on-page checks. Fix title, meta, headings, and more β right in your browser, completely private.
Paste your HTML and click Analyze SEO
Checks title, meta description, headings, canonical, robots, images, word count & more
π‘ Note: Analysis runs 100% in your browser β your HTML is never uploaded. Right-click any page, choose View Page Source, copy the code, and paste it here.
How to Use the SEO Checker
Copy Page Source
Open any webpage, right-click and choose "View Page Source" (Ctrl+U), then copy the entire HTML code.
Paste & Analyze
Paste the HTML and click "Analyze SEO". The tool checks 10+ on-page factors and gives you a 0-100 score.
Fix & Re-check
Apply the fix tips for each failed check, then re-analyze to watch your score climb. Aim for 80+.
π‘ What Gets Checked
β Title tag length & presence
β Meta description presence & length
β Exactly one H1 with keyword
β Heading hierarchy (H2βH6)
β Canonical URL tag
β Robots directives (noindex/nofollow)
β Mobile viewport meta
β Open Graph social tags
β Image alt attributes
β Word count & content depth
β Internal link health
β Overall SEO score (0β100)
Frequently Asked Questions
How often should I run an SEO check?βΌ
Run a full check after every content update and at least once a month for active pages. Rankings change constantly, and a quick re-audit catches new issues before they cost you traffic.
Can I check my competitor's pages?βΌ
Yes. Paste any page's source (view-source works on any public site) and see what on-page factors your competitors are doing right β then copy their strengths and fix their weaknesses.
Is this the same as Google Search Console?βΌ
Not exactly. Search Console shows how Google sees your site and what pages are indexed. This checker audits your page's on-page HTML quality, which GSC does not analyze in detail.
What should my target SEO score be?βΌ
Aim for 80+. Pages scoring 80+ typically have all foundational on-page elements in place. For competitive keywords, also build authority with quality backlinks and consistent content.
Why is my site's score different in other tools?βΌ
Each tool weighs factors differently β some prioritize Core Web Vitals, others link profiles. This tool focuses purely on on-page HTML factors, which is the most actionable layer to fix yourself.