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Free SEO Audit Tool for Any Website

Audit any page or crawl up to 100 pages. Check 50+ things across technical SEO, on-page, content, links, speed and schema, get a score out of 100 and a clear list of what to fix first.

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AT A GLANCE
  • What it doesAudits a page or a whole site
  • AccuracyExact checks, our scoring
  • Works withOne page, or up to 100 pages
  • PriceFree, no sign-up, no limit
  • Last reviewed
> define

What Is an SEO Audit Tool?

Short answer
An SEO audit tool is a tool that checks a website for problems that stop it from ranking well in search. It looks at the technical setup, page content, links, speed and structured data, gives you a score and tells you what to fix first.

An SEO audit is the first step of every good SEO plan. Without one, it is easy to spend weeks on content while a noindex tag, a broken redirect or slow pages hold you back. This tool runs 50+ checks on a single page, or crawls up to 100 pages to find site-wide problems like duplicate titles, thin pages and broken links, then ranks every issue so you know where to start.

Quick facts
  • 50+ checks in 6 categories
  • Single page audit or site crawl up to 100 pages
  • Score from 0 to 100
  • "Fix these first" list ranked by impact
  • PDF report and CSV export
> how --to

How to Use the SEO Audit Tool

Get a full SEO report in a few minutes.
01

Pick a mode

Audit one page, or audit the whole site (25, 50 or 100 pages).
02

Enter your URL

Add a focus keyword if you want keyword checks too.
03

Run the audit

The tool checks the page, the site setup and the links.
04

Read your score

See your score and the results for each category.
05

Fix the top issues

Start with the “Fix these first” list, then save the PDF or CSV.

How to use your audit

  • Fix errors that block indexing first, like noindex or 5xx pages.
  • Then fix titles, descriptions and H1s on your key pages.
  • Then work on speed, links and schema.
  • Re-run the audit after each round of fixes.
  • Audit again every month to catch new problems.
Ready to try it? It is free and takes less than a minute.
Run free SEO audit
> ls ./guide

What the SEO Audit Checks

The 6 categories and their share of the score.
CategoryWeightExamples of checks
Technical25Status code, HTTPS, redirects, robots.txt, sitemap, canonical, noindex
On-page25Title, meta description, H1, headings, URL, keyword use
Content15Word count, thin content and image alt text
Links15Broken links, internal links, external links
Speed and mobile10Viewport, page size, server time, optional Google speed test
Social and schema10Open Graph, X cards, JSON-LD structured data, favicon
> cat methodology.md

How the SEO Audit Tool Works

Here is how the audit works, step by step.
  1. 01

    The page or site is loaded

    Our server fetches the page, or crawls up to 100 pages by following internal links.

    Our server
  2. 02

    Site checks run

    robots.txt, the sitemap, http and www redirects and SSL are checked.

    Our server
  3. 03

    Page checks run

    50+ checks across the 6 categories, including up to 60 links per page.

    Our server and your browser
  4. 04

    The score is worked out

    Each category scores a share of its weight, and the shares add up to 100.

    In your browser
  5. 05

    Fixes are ranked

    Issues are sorted by impact, so the most important ones come first.

    In your browser

How the Score Works

A simple, open formula.

Score = Technical (25) + On-page (25) + Content (15) + Links (15) + Speed and mobile (10) + Social and schema (10).

Inside each category, every check that passes earns its part of the weight. Errors cost more than warnings. For example, a page with a noindex tag loses much of its Technical score, while a missing Open Graph image only costs a small part of Social and schema.

> test --report

Is the SEO Audit Tool Accurate?

Yes for what it checks. Every check reads your live pages, and the rules follow Google Search Central guidance. The score itself is our way of weighting the results, not a Google score.
Exact
accuracy level
live page checks
50+ checks
what results are based on
Google guidance
Monthly
full re-test
against known answers
24/7
bug reports open
fixed as high priority
What we test every month
  • Known problems on test sites are found
  • Pages without problems pass
  • The crawl follows internal links and respects limits
  • Scores add up correctly
  • PDF and CSV match the on-screen report

Accuracy in plain words

No audit tool knows Google’s ranking formula. The checks find real technical and on-page problems, but rankings also depend on content quality, links from other sites and competition, which no tool can fully measure.

Keep in mind
A score of 100 does not guarantee rankings. Use the audit to remove problems, then focus on helpful content.
> features

Features of the SEO Audit Tool

Everything you need for a full SEO check-up.

50+ checks

Technical, on-page, content, links, speed and schema.

Site crawl

Audit 25, 50 or 100 pages at once.

Score out of 100

One clear number, split by category.

Fix-first list

The most important issues on top.

Keyword checks

Add a focus keyword to check placement.

PDF and CSV

Share the report with your team or client.

> limits --honest

Limitations of This Tool

No tool does everything. Here is what this one does not do, and what you should do yourself.
What the tool cannot do
  • It crawls up to 100 pages per run
  • It cannot measure backlinks from other sites
  • It cannot judge content quality like a human
  • It may miss content added by JavaScript
What you should do
  • Fix indexing errors first
  • Re-run the audit after each round of fixes
  • Check Google Search Console for real search data
  • Audit your site every month
> whoami

Who Can Use This SEO Audit Tool?

Anyone who wants their website to rank better.

Business owners

See what holds your site back, in plain words.

SEO specialists

Run quick audits for new clients.

Developers

Check a site before and after launch.

Bloggers

Find problems across your posts.

> git log

Updates, Bug Fixes and Reviews

We test this tool every month and fix reported bugs as a high priority. Every change is listed here.
Oct 2026

SEO Audit Tool launched

First release with page and site audits, 50+ checks in 6 categories, score, fix-first list, PDF and CSV.

Launch
Every month

Full re-test and rules review

We run the tool against our test cases again and check Google Search Central guidance for changes.

Monthly

Tool page last reviewed on .

Found a bug or a wrong result?

Tell us what you entered, what happened and what you expected. Our developer checks every report, fixes confirmed bugs as a high priority and tests the fix before it goes live.

Report a bug
> git blame

Who Built and Reviewed This Tool

The SpellMistake team built this tool from our own daily SEO work and official rules.
H
Built and tested by

Hassan

Senior Web Developer, 4+ years
Built the crawler, the 50+ checks and the PDF and CSV reports.
MA
Reviewed by

Muhammad Ahtesham

SEO Strategist and Founder, 4+ years
Chose every check and weight from Google Search Central guidance and daily SEO work.
A
Guide and help text

Afza

Marketing Expert and Co-founder, 4+ years
Made the labels, tips and this guide simple and easy to follow.

Sources we follow

Our standards

This page follows our Editorial Policy and Methodology. If something here is wrong, our Corrections Policy explains how we fix it. Learn more about the SpellMistake team.

> rate --tool

Ratings From Real Users

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Ratings come from real visitors. One rating per person. We never add, edit or remove ratings.

> faq

SEO Audit Tool FAQ

Quick answers to the questions people ask most about this tool.

What is an SEO audit?

An SEO audit is a check of your website for problems that hurt search rankings, like technical errors, weak titles, slow pages and broken links.

Is this SEO audit tool free?

Yes. It is 100% free, with no sign-up.

How many pages can it audit?

One page in page mode, or up to 100 pages in whole-site mode.

What is a good SEO score?

Above 80 is good. But fix the errors first, because one serious error, like noindex, matters more than the score.

How often should I run an SEO audit?

Run a full audit every month, and after any big change like a redesign, migration or new plugin.

Does a high score mean I will rank first?

No. The audit removes technical and on-page problems. Rankings also depend on content quality, backlinks and competition.

Can I share the report?

Yes. Save it as a PDF or export the results to CSV.

Want a full check of your website?
Our SEO audit finds every technical, on-page and content problem and gives you a clear, ranked list of fixes.
Get a free quote
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