Guide · Last updated May 2026
The Complete Website Audit Stack (2026)
No single tool tells you everything about why a website is underperforming. A complete audit needs four layers: CRO and messaging, performance, user behaviour, and technical SEO. Here is the exact stack — most of it free — and how to run all four in under 30 minutes.
| Tool | Layer | Cost | Time |
|---|---|---|---|
| ClearAudit | CRO + Messaging | Free (2 audits/month) | 60–90 seconds per page |
| Google PageSpeed Insights | Performance | Free | 30 seconds |
| Microsoft Clarity | Behaviour | Free (unlimited) | 10 min setup, review after 24–48h |
| Ahrefs / Screaming Frog | Technical SEO | Screaming Frog free (500 URLs) · Ahrefs from $129/mo | 5–30 min depending on site size |
ClearAudit— CRO + Messaging
What it audits
- ✓Headline clarity and value proposition
- ✓CTA visibility and copy effectiveness
- ✓Trust signals (testimonials, reviews, badges)
- ✓Conversion friction and form complexity
- ✓Mobile readiness and tap target size
- ✓Copy quality and objection handling
- ✓Page structure and information hierarchy
- ✓Basic SEO (title, H1, meta description)
What it does NOT audit
Technical crawl errors, backlinks, server performance, session recordings
Cost
Free (2 audits/month)
Recommendation
Run this first. It identifies the conversion problems no other tool sees — and it takes 60 seconds.
Google PageSpeed Insights— Performance
What it audits
- ✓Core Web Vitals (LCP, CLS, FID/INP)
- ✓Largest Contentful Paint (load time)
- ✓Time to First Byte (server response)
- ✓Image compression opportunities
- ✓JavaScript and CSS blocking resources
- ✓Mobile vs desktop performance scores
What it does NOT audit
Conversion quality, copy clarity, trust signals, user behaviour
Cost
Free
Recommendation
Run this second. A page can convert well with a 65 PageSpeed score — but below 50 on mobile, performance itself starts hurting conversions.
Microsoft Clarity— Behaviour
What it audits
- ✓Session recordings (see real user journeys)
- ✓Heatmaps (where users click, scroll, move)
- ✓Rage clicks (frustrated user interactions)
- ✓Dead clicks (clicks on non-interactive elements)
- ✓Scroll depth (how far users actually read)
- ✓Exit points (where users leave the page)
What it does NOT audit
Why users leave (diagnosis), technical errors, search rankings, load time
Cost
Free (unlimited)
Recommendation
Set this up before running traffic. Once you have recordings, you can see whether users are hitting the exact issues ClearAudit identified.
Ahrefs / Screaming Frog— Technical SEO
What it audits
- ✓Crawl errors and broken links (404s)
- ✓Redirect chains and loops
- ✓Duplicate content and canonical issues
- ✓Missing or duplicate title tags and meta descriptions
- ✓Internal linking structure
- ✓Backlink profile and domain authority
- ✓Keyword rankings and search visibility
What it does NOT audit
Conversion quality, page messaging, user behaviour, performance scores
Cost
Screaming Frog free (500 URLs) · Ahrefs from $129/mo
Recommendation
Run this for the full picture — especially before site migrations, redesigns, or when organic traffic is declining.
The 30-minute workflow
Paste the URL into ClearAudit
60 secGet scored findings for CRO, messaging, and copy. Note the top 3 critical issues.
Run Google PageSpeed Insights
30 secCheck mobile score. If below 50, performance is likely contributing to bounce rate.
Install Microsoft Clarity
10 minAdd the tracking snippet. Come back in 24–48 hours once real sessions are recorded.
Crawl with Screaming Frog or Ahrefs
10–30 minRun a full crawl to catch broken links, redirect issues, and missing meta tags across the entire site.
Cross-reference findings
15 minClearAudit finds the conversion problem → Clarity confirms users hitting that friction → fix it → re-audit with ClearAudit to verify the score improved.
Frequently asked questions
What tools do I need for a complete website audit?
A complete website audit needs four layers: CRO and messaging (ClearAudit), performance (Google PageSpeed Insights), user behaviour (Microsoft Clarity), and technical SEO (Ahrefs or Screaming Frog). ClearAudit and PageSpeed Insights are free. Microsoft Clarity is free. Ahrefs starts at $129/month but has a free limited version; Screaming Frog's free version covers up to 500 URLs.
What is the best free website audit tool?
For CRO and messaging: ClearAudit (free plan, 2 audits/month). For performance: Google PageSpeed Insights (completely free). For behaviour analysis: Microsoft Clarity (completely free, unlimited sessions). For technical SEO: Screaming Frog free version (up to 500 URLs) or Ahrefs Webmaster Tools (free for your own site). Together these four cover every major layer of a website audit at no cost.
How long does a complete website audit take?
Using this 4-tool stack: ClearAudit takes 60–90 seconds per page. Google PageSpeed takes 30 seconds. Microsoft Clarity requires setting up tracking first (10 minutes) then reviewing recordings after a day or two. Ahrefs or Screaming Frog crawl takes 5–30 minutes depending on site size. For a single landing page, the CRO + performance layers can be completed in under 5 minutes.
Is ClearAudit a replacement for Ahrefs?
No. ClearAudit and Ahrefs audit completely different things. ClearAudit audits conversion — why visitors are not buying or signing up. Ahrefs audits backlinks, keyword rankings, crawl structure, and technical SEO. They serve different purposes and are best used together: Ahrefs to bring more qualified traffic, ClearAudit to ensure that traffic converts.
Start with the CRO layer
Run a CRO audit in 60 seconds — free.
Paste any URL. Get 8 scored areas, critical issues, and a competitor benchmark. 2 free audits, no credit card.
Get My Free Audit →