On-Page SEO Audit Tool
Run a free on-page SEO audit of any pasted HTML or content: checks title, meta description, headings, image alt text, word count, links and more — with a prioritised, actionable checklist.
✓ Professional standard Follows current Google and Bing guidance, the schema.org vocabulary and the Open Graph protocol.
On-Page SEO Audit Tool is a free online seo tool from Toolinza. Run a free on-page SEO audit of any pasted HTML or content: checks title, meta description, headings, image alt text, word count, links and more — with a prioritised, actionable checklist. It runs entirely in your browser — your data is never uploaded — needs no signup, and works on any device. Toolinza offers 320+ free tools used by people across the UK, USA, Canada, Australia, the EU, India, Pakistan, the Middle East and worldwide.
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About the On-Page SEO Audit Tool
Most on-page SEO problems are invisible until someone checks — a missing meta description, two H1 tags, images with no alt text, content that is too thin. Individually small, together they hold a page back.
This On-Page SEO Audit Tool scans any HTML or content you paste and returns a prioritised checklist: title and description length, heading structure, image alt text, word count, links, canonical, viewport, Open Graph and structured data — with a clear pass score and specific fixes.
How to use the On-Page SEO Audit Tool
- Paste your page's HTML (or just its visible content).
- Optionally enter your target keyword to check its placement.
- Run the audit.
- Work through the flagged items, fixing the warnings first.
Key features of the On-Page SEO Audit Tool
- Checks title, meta description, headings, alt text, word count and links
- Flags missing canonical, viewport, Open Graph and JSON-LD schema
- Optional keyword-placement check in the title and content
- Clear pass score with a prioritised, actionable checklist
- Runs in your browser — your content is never uploaded
How the On-Page SEO Audit Tool works
This tool is built around the specifications search engines and social platforms actually use: current Google and Bing best-practice guidance for titles and descriptions, the schema.org vocabulary for structured data, and the Open Graph protocol for social sharing. Recommended character limits and tag structures reflect how results are displayed in search and in social feeds.
Everything is generated in your browser, and you can copy the output straight into your site.
Tips & best practices
- Paste the full HTML rather than just the text so tag-based checks (title, canonical, schema) can run.
- Fix the red warnings first — a missing title or duplicate H1 has more impact than a borderline word count.
- Re-run the audit after your edits to confirm every check passes before you hit publish.
Standards & accuracy
Follows current Google and Bing guidance, the schema.org vocabulary and the Open Graph protocol.
Search engines ultimately decide how to display and rank pages, so treat generated tags and previews as best-practice starting points. Pair them with genuinely helpful content, which remains the most important ranking factor.
Who uses the On-Page SEO Audit Tool?
- A quick on-page health check before publishing
- Auditing existing pages that underperform
- Teaching and learning on-page SEO fundamentals
- Agencies producing page-level audit deliverables
Privacy & security
The On-Page SEO Audit Tool runs entirely inside your web browser. Your data — whether that is a file, figures or text — is processed on your own device and is never uploaded to a server, stored or shared. There is no signup and no account, so you can use it as often as you like while keeping full control of your information. This makes it a safe choice even for confidential and sensitive work.
Why choose Toolinza?
- 100% free — no hidden charges, watermarks or usage caps.
- Private & secure — your data stays on your device.
- Standards-compliant — accurate results suitable for the UK, USA, Canada, Australia, EU, India, Pakistan, the Middle East and worldwide.
- Works everywhere — desktop, tablet and mobile.
Frequently asked questions
It reviews the core on-page factors: title tag, meta description, a single H1, subheadings, content length, image alt text, links, canonical tag, mobile viewport, Open Graph tags and structured data — plus keyword placement if you provide one.
For a full audit, paste the page's HTML so the tool can read the tags. You can paste plain content too, but tag-based checks will show as missing.
No. The entire audit runs locally in your browser, so whatever you paste stays on your device.
Yes. The On-Page SEO Audit Tool is completely free with no signup, no watermarks and no usage limits. Toolinza is supported by unobtrusive advertising so every tool stays free.
Absolutely. This tool runs entirely in your browser — your data and files are never uploaded to any server, so everything stays private on your own device.
No. The On-Page SEO Audit Tool works instantly in any modern web browser on desktop, tablet and mobile — Windows, macOS, Linux, Android and iOS.