Free technical SEO audit · no signup
Technical SEO audit & onpage SEO audit
Run a free technical SEO audit and onpage SEO audit on any URL. It checks the page-level faults rankings leak through — a canonical pointing nowhere, a three-hop redirect chain, a missing hreflang return tag, a sitemap that will not parse — and returns a verdict with a fix for each. For a free local SEO audit, these page checks are the starting layer; listings and citations sit outside this scan.
Included in the free full scan — run this category alone when you only need these checks.
Need tags? Generate hreflang tags.
Page checks run on this exact URL; site-wide files are read from the domain root. This is not a full-site crawl.
One free scan of this category · anonymous preview · sign in to save the full report
What a free SEO audit report looks like
Three rows from a report: the verdict, the summary the scan produces, the values it found and the fix. The domain is example.com; verdicts, keys and fix wording follow the scanner.
- pass
Canonical self-references
canonical: https://example.com/guides/seo · canonicalTags: 1
Fix: No change needed — one canonical that self-references the final URL.
- fail
Redirect chain is 3 hops (>2), crawl budget wasted
hops: 3 · finalUrl: https://example.com/guides/seo/
Fix: Collapse the chain to one 301 straight to the final URL.
- na
Sitemap missing (404), no entries to check
sitemap: /sitemap.xml
Fix: Publish a sitemap and point robots.txt at it — a missing sitemap is na, not a violation.
What one scan checks here
Included in the scan above — open any check for the full criteria, evidence and fix notes.
- Canonical checker — See whether your canonical survives redirects and still points at the page itself.
- Redirect checker — Trace every redirect hop and see where crawl budget goes before it lands.
- SERP preview & title tag preview — Preview your title and description in a live result before Google rewrites them.
- Favicon checker — See whether your icon link resolves to a real image, not HTML wearing a 200.
- Hreflang checker — See which side of your hreflang cluster is missing — self-reference, x-default or reciprocity.
- Sitemap validator — See whether your sitemap is structurally valid and inside the 50,000-URL limit.
- H1 heading checker — See whether your page states exactly one main headline — and what it says.
- Meta viewport checker — See whether phones render your layout as designed, not as a zoomed-out desktop.
- Meta charset checker — See whether your text renders as written instead of mojibake.
- HTML lang attribute checker — See whether screen readers and search engines know which language your page serves.
- HTTPS & HSTS checker — See whether your page is served over TLS and stays protected on the second visit.
- Compression checker — See whether text responses are compressed or paying the full byte bill.
- Image alt attribute checker — See which images say nothing to image search or screen readers.
- Word count checker — See whether your main content clears the thin-content line — and by how much.
Frequently asked questions
What does a technical SEO audit cover?
The page-level faults search engines see first: canonical self-reference, redirect chains, the title and description snippet, favicon presence, hreflang reciprocity, sitemap validity, and onpage basics such as H1, viewport, charset, lang, HTTPS, compression, image alt text and word count.
Why do redirect chains hurt rankings?
Each hop spends crawl budget and dilutes the ranking signal passed forward. Two or more hops between the indexed URL and the final page is worth flattening.
Is this SEO audit free?
Yes — every check on this page runs free without an account, with an anonymous preview. Sign in to save the full report and keep the evidence per URL.
Can I use this as a free local SEO audit?
Use it for the page layer: the URL, its markup and its crawl signals are the same whether the business is local or not. Local rankings also depend on your Business Profile, name, address and phone consistency, and citations, which this scan does not check.
How often should I re-run the check?
After every deploy that touches routing, templates or international targeting — and after each Google core update, to confirm nothing regressed.
Is this an AI SEO audit?
The verdicts are deterministic rule checks, not an LLM judgement, so the same page produces the same result. AI enters at the edges: an MCP server exposes findings to an agent, and the radar tracks Google updates that change what the rules mean.
Can I automate SEO audits?
Sign in to re-run audits per site, keep each run and compare added, fixed and regressed findings. Account alerts can notify you when a monitored rule regresses; the free scan stays a one-off page check.
How do I do an onpage SEO audit?
Start with one URL: run the free scan, fix failures in the order the report lists them, then re-run to confirm. For a site-wide view, sign in, verify the site and run the full audit so the same rules apply across every page.
Does this audit check backlinks?
No. This scan checks the page, its markup and its crawl signals; it has no backlink index, so it cannot count referring domains, link quality or authority scores. Backlink data is a different product category — the Ahrefs comparison covers what a dedicated backlink tool gives you and where a page-level audit stops.
Is there an SEO audit API?
Yes. Signed-in accounts get an HTTP API for audits, findings and radar updates, and an MCP server exposes the same surface to agents. Both are documented with request and response examples; the free one-off scan on this page does not need a key.
What each check verifies, and what a failure looks like, lives in the checker library.