Your website could be losing traffic, rankings, and customers right now — and you'd have no idea unless you audit it. A website audit checks everything from page speed to broken links to how well Google can read your content. The good news: you don't need to spend a cent to find the problems.
This guide compares the best free website audit tools available in 2026, explains what each one checks, and tells you which to run first — so you can turn findings into fixes without wasting time.
75%
of users judge a business's credibility based on website design and performance — before reading a single word of copy.
Quick Comparison: Best Free Website Audit Tools
| Tool | What it audits | Free limit | Best for |
|---|---|---|---|
| Scrippt Free Audit | Speed, SEO, Core Web Vitals | Unlimited | Fast, no-login overview |
| Google PageSpeed Insights | Speed & Core Web Vitals | Unlimited | Performance deep-dive |
| Google Search Console | Indexing, rankings, errors | Unlimited | Ongoing SEO monitoring |
| Screaming Frog | Full site crawl | 500 URLs | Technical SEO |
| Semrush Site Audit | 100+ SEO issues | 100 pages/crawl | Comprehensive SEO |
| GTmetrix | Speed & waterfall | 1 test/day | Diagnosing slow load |
| Microsoft Clarity | User behaviour & heatmaps | Unlimited | UX and conversion |
1. Scrippt Free Site Audit — Best for a Fast Overview
What it checks: Page speed, Core Web Vitals (Google's ranking factors), image optimisation, and SEO fundamentals — all in one place, in plain English.
Why it's first on this list: Most audit tools give you a list of technical codes and leave you to figure out what they mean. The Scrippt free site audit translates every finding into a specific, actionable fix — no jargon, no guessing. You paste in a URL, hit run, and get a prioritised list of what to fix and why it matters for your rankings and sales.
How to use it:
- Go to scrippt.dev/website-audit
- Paste in your URL — homepage, product page, or any page you want to check
- Read the speed score and Core Web Vitals results
- Work through the issues from top to bottom (highest impact first)
What it's best at: Getting a clear, immediate health check on any page without creating an account or decoding technical reports. Run it on your homepage and your most important landing page.
Free tier: Completely free, no signup required.
Start here
2. Google PageSpeed Insights — Best for Performance Detail
What it checks: Load speed, Core Web Vitals (LCP, INP, CLS), and a prioritised list of specific fixes like oversized images, render-blocking scripts, and unused CSS.
PageSpeed Insights is Google's own tool, which means the scores and thresholds it reports are exactly what Google uses when deciding where to rank your pages. A low mobile score here directly correlates with lower search rankings.
How to use it:
- Go to pagespeed.web.dev
- Enter your URL and run the analysis
- Switch to the Mobile tab first — Google ranks based on mobile performance
- Scroll to "Opportunities" — each item shows how many seconds it could save
- Fix the highest time-savings item first
What to look for: Anything flagged as an "Opportunity" with a saving above 0.5 seconds is worth fixing. Common culprits are uncompressed images (serve WebP format instead of JPEG/PNG), unused JavaScript from plugins, and slow server response times.
Free tier: Completely free, unlimited.
Core Web Vitals — Google's ranking thresholds
How fast your main content loads
Good
< 2.5s
Needs Work
2.5s – 4s
Poor
> 4s
How fast the page responds to clicks
Good
< 200ms
Needs Work
200ms – 500ms
Poor
> 500ms
How much the page jumps as it loads
Good
< 0.1
Needs Work
0.1 – 0.25
Poor
> 0.25
3. Google Search Console — Best for SEO Monitoring
What it checks: Whether Google can find and index your pages, which keywords you rank for, which pages have errors, and mobile usability issues.
Search Console is the only tool that shows you real data from Google about how your site performs in search. Everything else is estimated. If you only set up one tool from this list permanently, this is it.
How to set it up:
- Go to search.google.com/search-console
- Add your domain and verify ownership (usually by adding a DNS record — Google walks you through it)
- Wait 48–72 hours for data to appear
- Check Pages for indexing errors, and Performance for keyword rankings
What to look for first:
- Pages not indexed — any URL Google refuses to show in search results
- Page 2 keywords — search queries where you rank positions 11–20. These are your best opportunities: a targeted content improvement could push them to page 1
- Mobile usability errors — text too small to read, clickable elements too close together, content wider than the screen
Free tier: Completely free, unlimited. Requires Google account and domain verification.
4. Screaming Frog SEO Spider — Best for Technical SEO
What it checks: Every URL on your site, including title tags, meta descriptions, headings, response codes, canonical tags, internal links, and image alt text. Crawls your site exactly like Google would.
Screaming Frog is the tool SEO professionals use to find issues that automated audits miss — particularly duplicate content, broken internal links, and missing or repeated meta tags across hundreds of pages.
How to use it:
- Download the free version from screamingfrog.co.uk
- Enter your domain and click Start
- Once the crawl finishes, go to Response Codes → Client Error (4xx) to find broken links
- Go to Page Titles → Missing or Duplicate to find SEO gaps
- Export everything to a spreadsheet and work through it systematically
Free tier limit: 500 URLs per crawl. Enough for most small business websites.
Don't skip this one for sites with many pages
5. Semrush Site Audit (Free Tier) — Best for Comprehensive SEO Issues
What it checks: Over 130 technical SEO issues, including crawlability, HTTPS implementation, structured data, internal linking, page speed, and Core Web Vitals — all with a prioritised issue list.
Semrush's audit is the most comprehensive in terms of issue categories. The free tier limits you to 100 pages per crawl but covers most small business websites completely.
How to use it:
- Create a free account at semrush.com
- Set up a project for your domain
- Run a Site Audit
- Review the thematic reports: Crawlability, HTTPS, Performance, Internal Linking, Markup
What it's best at: Finding structured data errors (schema markup issues), hreflang problems for multilingual sites, and internal linking gaps that other tools don't surface.
Free tier: 100 pages per crawl, 1 project, limited keyword data. Enough for an initial audit.
6. GTmetrix — Best for Diagnosing Slow Load Times
What it checks: Page speed and a waterfall chart showing every file that loads on your page — in the exact order it loads, with timing for each.
The waterfall view is what makes GTmetrix unique. PageSpeed Insights tells you a page is slow. GTmetrix shows you which specific file is causing the slowdown — whether it's a 4MB hero image, a third-party chat widget, or a font loading before anything else renders.
How to use it:
- Go to gtmetrix.com and create a free account
- Enter your URL and run the test
- Click the Waterfall tab after the test completes
- Sort by load time and find the single slowest file
- That file is your first fix
Free tier: 1 test per day, no account required. Free account gives 5 tests per day.
7. Microsoft Clarity — Best for Understanding User Behaviour
What it checks: Session recordings of real visitors, heatmaps showing where people click and scroll, and automatic detection of rage clicks (frustrated repeated clicking) and dead clicks (clicking on things that don't respond).
Clarity is unique because it shows you what people do on your site — not just how fast it loads. A fast site that confuses visitors still loses sales. Clarity shows you where visitors get stuck, what they click expecting it to do something, and where they give up.
How to set it up:
- Sign up free at clarity.microsoft.com
- Add the tracking snippet to your site
- Let it collect data for at least 48–72 hours
- Watch 10 session recordings and look at heatmaps for your homepage and key pages
What to look for: Pages with high scroll depth but no clicks on your main CTA. Rage clicks on anything — these indicate broken expectations. Drop-off points in multi-step forms or checkout flows.
Free tier: Completely free, no traffic limits, no page limits.
How to Choose the Right Tool
You don't need to use all seven. The right combination depends on what you're trying to fix:
If you've never audited your site before: Start with the Scrippt free audit for an instant overview, then set up Google Search Console for ongoing monitoring. Those two together will surface 90% of what's urgently broken.
If your site is slow: Run Google PageSpeed Insights to get your score and issue list, then GTmetrix to identify the exact files causing the slowdown.
If your rankings have dropped: Google Search Console will show you which pages lost rankings. Screaming Frog will reveal technical issues (broken links, duplicate content) that could explain the drop.
If you're getting traffic but not conversions: Microsoft Clarity will show you what visitors are actually doing. Session recordings are more revealing than any technical metric.
If you have more than 50 pages: Screaming Frog and Semrush's Site Audit are worth running to catch issues that page-by-page testing misses.
The Right Order to Run Your Audit
Running all seven tools at once is overwhelming. A practical order:
- Scrippt free audit — 2 minutes. Gets you oriented on the biggest issues.
- Google PageSpeed Insights — 2 minutes. Check your mobile score and top speed fix.
- Google Search Console — Set it up once, check it weekly. Shows you real keyword data.
- Screaming Frog — 20 minutes once per quarter. Catches technical issues at scale.
- GTmetrix — Only if your site is still slow after fixing PageSpeed issues.
- Microsoft Clarity — Install once, review recordings monthly.
- Semrush — Use for a deep-dive audit before a redesign or relaunch.
Key takeaway
Frequently Asked Questions
What is the best free website audit tool?
The best free website audit tool depends on what you're checking. For a fast, no-setup overview of speed, SEO, and Core Web Vitals, the Scrippt free site audit is the quickest starting point. For ongoing SEO monitoring with real keyword data, Google Search Console is the most important tool to have set up. For deep technical crawls, Screaming Frog's free version covers up to 500 pages.
How often should I audit my website?
Run a lightweight audit (PageSpeed Insights + a quick Search Console check) monthly. Run a full technical crawl with Screaming Frog or Semrush once a quarter. Set up Microsoft Clarity and Google Search Console permanently — they give you ongoing data rather than point-in-time snapshots.
Can a website audit improve my Google rankings?
Yes, indirectly. An audit identifies technical issues — slow load times, indexing errors, missing meta tags, broken links — that prevent Google from ranking your pages. Fixing those issues removes obstacles to ranking. It doesn't guarantee higher positions, but it removes the barriers that are actively suppressing them.
Do I need to create an account to audit my website?
Not for all tools. The Scrippt free audit and Google PageSpeed Insights require no account. Google Search Console and Semrush require sign-up. Screaming Frog is a desktop download that works without an account in its free tier. Microsoft Clarity requires a free account to view recordings.
What does a website audit check?
A thorough website audit covers four areas: performance (page speed and Core Web Vitals), SEO (title tags, meta descriptions, headings, internal links, indexability), technical health (broken links, redirect chains, HTTPS, structured data), and user experience (how real visitors navigate and interact with your pages).
