Free SEO Audit: check your site's technical health in 30 seconds.
Free online SEO audit
Analyze any page: 25+ technical and on-page checkpoints, a score out of 100, and actionable advice.
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Powered by Hack The SEO · also try the free GEO Score · all free tools
Why this free audit goes further.
Most free SEO audit tools list errors and stop there. This one analyzes, explains each point in plain English, and the plugin can then fix them.
| Analysis | Alyze | Semrush (free) | Hack The SEO |
|---|---|---|---|
| Actionable advice per point | ✕ list of errors | ✕ list of errors | ✓ clear action to take |
| Schema.org (JSON-LD) | Present / absent | ✕ paid | ✓ types detected one by one |
| Open Graph & social | Text only | ✕ | ✓ tag by tag |
| Hreflang & international | ✕ | ✕ paid | ✓ language + alternates |
| Code weight & content | Load time | Limited | ✓ HTML weight + text richness |
| Usage limits | Free, limited | Freemium, very limited | ✓ 100% free, unlimited |
What the free SEO audit really analyzes.
A 360° view of your SEO health, analyzed in real time: every family of criteria, with the advice that goes with it.
Technical & speed
HTML and DOM weight (code-bloat detection), viewport and mobile compatibility: the foundations that drive your Core Web Vitals (LCP, CLS) and the speed Google perceives.
Indexing & international
Page crawlability (robots tag, canonical against duplicate content), declared language and hreflang: what Googlebot reads before your content even loads.
Semantics & structure
H1-H6 hierarchy, alt attributes, Schema.org detailed type by type, Open Graph tag by tag: what helps Google and AI understand and cite the page.
How does this free website scanner work? Three steps, zero software.
Paste your URL
The tool fetches the page's HTML and analyzes it the way a search engine would, in under 30 seconds.
Read your score
A score out of 100, the count of passing, watch-list and failing points, and the detail of each check in plain English.
Fix in order
Each failing point comes with its actionable advice. Start with what blocks you, not the details.
In 2026, a poorly coded site is invisible. Even with great content.
Google no longer reads only your keywords: with SGE (Search Generative Experience) and E-E-A-T criteria, your site has to be technically flawless to be shown, and cited by AI. The SEO audit has become the site's technical inspection: something to redo regularly, not once every two years.
- Broken links (404 errors) drive away visitors and bots
- A forgotten noindex tag can pull an entire page out of Google
- Without structured data, no rich results and no AI citations
- Mobile-first indexing judges your mobile version first
Only 40% of websites pass Google's Core Web Vitals thresholds.
Speed (LCP), stability (CLS), interactivity: a slow, unstable or poorly tagged site is now invisible, even with great content. That's exactly what this free audit detects in 30 seconds: foundations before decoration.
What is an SEO audit?
An SEO audit is a technical inspection of your site: it checks point by point what helps, or prevents, Google and AI from understanding, indexing and recommending your pages. It covers three families: the technical (indexing, speed, mobile, tags), the content (heading structure, richness, images) and the signals (structured data, internal links, social sharing).
Think of it as your site's “Health Check”: a crawler bot mimics Googlebot's behavior to detect broken links (404 errors), gauge your crawl budget (how easily Google reads your pages) and check mobile-first indexing, which now accounts for 58% of global traffic.
Best practice in 2026: a free SEO audit as a first diagnosis, then continuous monitoring. A living site changes every week; a one-off audit is outdated by the next publish. That's why the plugin's audit module re-scans the site continuously.
Google ranks you. AI cites you. Audit both.
GEO (Generative Engine Optimization) is the counterpart of SEO for ChatGPT, Perplexity and Gemini: when an AI answers, it cites two or three sources, not ten blue links. Your AI visibility can be audited, exactly like your Google visibility.
- This free audit already checks the foundations AI reads: Schema.org structured data, Hn structure, Open Graph, content richness
- AI favors extractable content: a direct answer up top, figures, sources, FAQ
- An llms.txt file at the root presents your priority pages to AI bots (GPTBot, ClaudeBot, PerplexityBot)
Getting found and ranked by Google: tags, indexing, internal linking, speed. Goal: the first page.
Getting read and cited by ChatGPT, Perplexity and Gemini: extractable content, verifiable data, schema, llms.txt. Goal: being THE source of the answer.
The same technical foundations serve both: that's exactly what this free audit checks in 30 seconds.
One page at a time, 25+ points, advice to apply yourself.
The whole site continuously, issues prioritized by impact, and a Fix button next to each line: links repaired, metas regenerated, schemas added, all reversible for 30 days.
This audit diagnoses. The plugin fixes.
If your page's score surprised you, imagine across the whole site. The Hack The SEO WordPress plugin runs this audit continuously, on all your pages, and applies the fixes in 1 click.
- Site health continuously, not a one-off scan
- Fixes applied from the admin, reversible for 30 days
- SEO + GEO score per content, llms.txt generated automatically
Walk away with an optimized article, on us.
Book a free 20-minute session: we analyze your market, we write a Google + ChatGPT-optimized article live, and you walk away with an action plan. The article is yours, no strings attached.
We target your #1 keyword
Live market analysis: we pinpoint your best traffic opportunity.
We write the article in front of you
Optimized for Google and ChatGPT, ready to publish on your site, during the session.
You walk away with the plan
How to reproduce this 20 times a month, with zero technical skill.
100% free · 20 min flat · 5.0 on Google, 1,300+ companies in 18 countries
Everything about the free SEO audit.
Is this online SEO audit really free?
What exactly does this free SEO audit check?
How is it different from a manual or agency SEO audit?
How do I improve my SEO score after the audit?
Does the tool analyze my whole site or a single page?
Is my data stored?
Does the audit work on all sites (WordPress, Shopify, Webflow...)?
Does this audit also check my AI visibility (GEO)?
Does the tool analyze local SEO?
What about Core Web Vitals and competitors?
Your audit showed you the problems. Let's fix them together.
20 minutes on a call: we audit three of your pages live, the plugin fixes them in front of you, and you start with 90 minutes of expert onboarding on us.
On your site, not a generic demo · 90 min of expert onboarding included · traffic up in the first month, or your money back