One-Page SEO Audit
Paste a page's HTML source and get a real technical SEO check — title, meta description, headings, alt text, schema, and canonical tags. Nothing leaves your browser.
We fetch the page on seosorted's servers (no CORS problems) and run the full on-page checklist against the live HTML. Sign in free to run it.
What a one-page SEO audit actually checks
A free SEO audit tool like this one runs through the same on-page SEO checklist an experienced consultant would use for a quick manual review: is there one clear title tag in a reasonable length range, does the meta description exist and fit within the display limit, is there exactly one H1, do subheadings break the content into scannable sections, does every meaningful image have alt text, is there a canonical tag preventing duplicate-content confusion, and is there any structured data (schema) that could help the page qualify for rich results or get cited by AI engines.
None of this replaces a full technical SEO audit — it doesn't touch page speed, Core Web Vitals, mobile rendering, or backlink profile, all of which need different tools. But the checklist here catches the most common, most fixable mistakes: missing meta descriptions, duplicate or absent H1s, unlabeled images, and pages with no structured data at all.
Why an on-page SEO checklist still matters in an AI search era
As AI Overviews and chat-based answer engines pull directly from web pages, the same structural signals that helped Google parse a page cleanly now also determine whether an AI engine can extract and cite it accurately. A page with a missing H1, no schema, and unlabeled images isn't just weaker for classic SEO — it's harder for a language model to summarize correctly too. The checklist hasn't changed much; the stakes for skipping it have gone up.
How to use this SEO audit tool
- Try the URL fetch first — it works for pages that allow cross-origin requests, though most sites block this by default.
- If fetch fails, view-source on the page (Ctrl/Cmd+U), select all, copy, and paste the raw HTML into the box instead.
- Fix "bad" (red) items first — these are the checks with the clearest, most direct SEO impact.
- Re-run the audit after making changes to confirm the fix actually landed in the rendered HTML.
Frequently asked questions
What should be on an on-page SEO checklist?
At minimum: a unique title tag (15-60 characters), a meta description (140-155 characters), exactly one H1, a logical H2 structure, alt text on every meaningful image, a self-referencing canonical tag, valid schema markup where relevant, a viewport meta tag, and enough substantive text to actually cover the topic.
Why can't this free SEO audit tool just fetch my URL directly?
Most websites block cross-origin requests from browser-based tools as a security measure (CORS policy) — this isn't a limitation of this tool specifically, it applies to any client-side auditor. View-source on the page and paste the raw HTML instead; the audit runs the same either way.
Does this SEO audit tool check page speed or mobile usability?
No. This checks structural, crawlable HTML — title, meta tags, headings, schema, and similar. Page speed and real rendering behavior need actual browser-based testing tools like Google's PageSpeed Insights or Lighthouse, which this can't replicate from static HTML alone.
Is a 100% score on this audit the same as being guaranteed to rank #1?
No. This score reflects on-page technical fundamentals only. Rankings also depend on backlinks, content quality and depth, search intent match, site authority, and dozens of other factors this tool doesn't measure. Treat a high score as 'the basics are covered,' not a ranking guarantee.
Start building your content library in under 8 minutes.
Your competitors are publishing every week. Every week you don't is a week of organic traffic going to them.
No Credit Card Required.