Choose by the work you need to deliver: a technical crawl, a free first check, ongoing SEO monitoring or a branded client report. Compare the starting points and limits below, then test your shortlist on the same website.
Create an account to start a Full Audit with prioritised findings, recorded evidence and an action plan across nine specialist suites.
Choose your website and audit scope after signup. The report records available public evidence; it does not establish private operational or legal compliance.
Prefer to compare tools? Jump to the seven-tool selectorFilter by the job. These are editorial matches, with starting points and limits you can verify at the source.
Showing 7 tools. No accuracy ranking is implied.
Inspect URLs, redirects, titles and crawl directives in a desktop crawler.
Combine recurring site audits with a wider SEO research workflow.
Monitor technical and on-page SEO on websites you can verify.
Investigate a page’s performance with Lighthouse diagnostics and available real-user data.
Prepare branded SEO reports and evaluate an embedded lead-generation audit form.
Create custom SEO PDF reports with the metrics relevant to your client.
Start with a public-signal surface scan, then review broader findings and a client-facing action plan.
Ten questions to test on your own shortlist. No email or signup required.
AuditHQ publishes this guide and is one of the products included. Tool matches are our editorial judgement, based on public vendor documentation checked on 5 October 2026. This is not a hands-on benchmark or a ranking of measured accuracy. We do not claim one product is best for every agency. Free access, crawl depth and branded reporting are separate questions; confirm current entitlements before purchasing.
Choose the free layer that answers your immediate question. PageSpeed Insights helps investigate a page’s loading experience. Screaming Frog provides a limited desktop crawl. Ahrefs Free is an option for client websites you can verify. Semrush offers a daily SEO Checker that is separate from its deeper Site Audit. AuditHQ offers a public-signal surface scan without signup. Free results still need interpretation: a good score is not proof that a whole website is healthy.
For migrations, redirect reviews and URL-by-URL investigations, compare crawl coverage and rendering before report styling. Test representative product, service and blog templates; inspect the affected URLs and export the evidence. Screaming Frog, Semrush Site Audit and Ahrefs Site Audit are candidates for this workflow. A page checker or a broad surface score should not substitute for the crawl the brief requires.
Shortlist SEOptimer, WooRank or AuditHQ when the deliverable needs readable findings and agency branding. Before choosing a plan, export a sample and inspect the cover, recommendations, evidence, limitations and next actions. Check logo, colours, PDF export, share links and any custom-domain entitlement separately. An embedded lead form is another requirement; do not assume every white-label product includes one.
Use the downloadable worksheet to test your shortlist against one agreed brief. Record evidence and effort rather than comparing headline scores produced by different methods.
AuditHQ starts with a fast surface scan and offers deeper public-signal checks across nine specialist suites. Its catalogue includes technical, marketing, security, privacy, social, reputation, hiring, AI readiness and AI-search readiness checks. Applicability depends on the website and evidence available. Use the findings to prioritise investigation and client handoff; use a specialist crawler when the brief needs deeper URL coverage. AI readiness is not actual mention tracking, and a privacy or security signal review is not a certification.
No. Choose by the brief: URL-level diagnosis, performance testing, recurring SEO work or a branded client deliverable. Compare scope and reproducible evidence before scores.
This guide includes Screaming Frog’s limited desktop crawl, Semrush’s daily SEO Checker, Ahrefs Free for verified websites, Google PageSpeed Insights and AuditHQ’s no-signup surface scan. Their scopes and eligibility differ; a free check is not necessarily the full paid product.
Ahrefs Free Site Audit requires a verified website. Confirm that you can verify the client’s website before choosing that workflow; do not treat it as an unrestricted prospect-scanning service.
No. Branding changes the presentation. Review the actual checks, evidence and exclusions, and obtain specialist review when the brief requires legal, security or compliance assurance.
Not as equivalent measurements. Tools can assess different URLs, signals and weightings. Compare the evidence behind findings and how well each workflow answers the client brief.
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