Free AI SEO audit
for any website
Enter any URL. Get a full audit in 30 seconds — Core Web Vitals, AI visibility, on-page SEO, and a prioritized fix list.
Performance
SEO
Accessibility
Best Practices
Missing FAQPage schema — add it to rank in AI Overviews
Priority Fixes
How it works
Audit any site in three steps
Enter any URL
Paste any website URL — yours, a competitor's, or a prospect's. No account, no setup, no limits on which sites you can audit.
We run 50+ checks
Google Lighthouse runs performance analysis. We parse your HTML directly for on-page and technical SEO. Our AI engine scores your visibility for AI Overviews.
Get your full report
See an overall grade, prioritized fix queue, AI Visibility Score, Core Web Vitals, SERP preview, schema breakdown, and a downloadable PDF — all in one place.
What you get
The most complete free SEO audit available
No other free tool runs Lighthouse, checks AI visibility, shows a SERP preview, and lets you compare competitors — all without creating an account.
AI visibility score
The only free tool that scores your site for Google AI Overviews, ChatGPT, and Perplexity citations. 10 weighted factors.
Core Web Vitals
LCP, CLS, INP — the exact metrics Google uses as ranking signals. Real user field data shown when available.
Google SERP preview
See exactly how your listing appears in Google — title truncation, description display, URL format.
Schema & structured data
Detect all JSON-LD on your page. See which schema types you're missing for rich results and AI citations.
Priority fix queue
Issues ranked by SEO impact with effort estimates. Know what to fix first — and how hard it is.
Mobile screenshot
See your page exactly as Google's mobile crawler sees it. Mobile-first indexing means this is what ranks.
Keyword density
The most frequent terms on your page — and whether they match what you actually want to rank for.
OG & social preview
See how your link looks when shared on LinkedIn, Slack, and iMessage. Check image dimensions live.
Mobile + desktop
Separate scores for both. Google indexes mobile first — but desktop data reveals layout and performance gaps.
Technical SEO checks
HTTPS, robots.txt, sitemap, canonical, viewport, charset, lang attribute — 15+ technical validations.
Score history
Run it monthly and see your score change over time. Delta badges show how you've improved since last audit.
Competitor comparison
Enter a competitor URL and get a side-by-side score breakdown. See where you're ahead and where you're behind.
AI visibility score
Search is changing. Google AI Overviews, ChatGPT search, and Perplexity now answer millions of queries directly — without users clicking any link. If your site isn't optimized for AI citation, you're invisible in the fastest-growing traffic channel.
Our AI Visibility Score is the only free metric that measures this. It checks 10 weighted signals — schema markup, content depth, heading structure, and more — and tells you exactly what to fix to start appearing in AI-generated answers.
Coverage
What our SEO audit analyzes
We cover on-page, technical, performance, AI visibility, and social signals in a single scan — no paid account required.
On-page SEO
We check whether each page element is optimized to help Google understand what your page is about and rank it for the right queries.
- Title tags & length
- Meta descriptions
- H1–H3 heading structure
- Keyword density & topical coverage
- Word count & content depth
- Image alt text
Technical SEO
Technical issues block search engines from finding and indexing your content — even if the content is excellent. We check 15+ signals.
- HTTPS / SSL
- Robots.txt validity
- XML sitemap presence
- Canonical URL tags
- Viewport & charset meta
- HTML lang attribute
Performance & Core Web Vitals
Page speed is a ranking signal. Core Web Vitals are Google's official performance metrics. We run a full Lighthouse analysis in real time.
- Largest Contentful Paint (LCP)
- Cumulative Layout Shift (CLS)
- Total Blocking Time (TBT)
- First Contentful Paint (FCP)
- Time to Interactive (TTI)
- Unused JavaScript
AI & structured data
Schema markup helps AI systems understand your content. Without it, your site is invisible to AI Overviews, ChatGPT search, and Perplexity.
- FAQPage schema
- Organization & LocalBusiness
- Article / BlogPosting schema
- BreadcrumbList schema
- HowTo schema
- AI Visibility Score (10 factors)
Social & OG tags
When your content is shared or cited, social meta tags control what headline, image, and description appear — directly affecting click-through rate.
- Open Graph title & description
- OG image (with live dimension check)
- Twitter / X card tags
- Social platform presence
- Social link detection
What we can't check (yet)
Backlinks, domain authority, and keyword rankings require paid data APIs that aggregate billions of data points. We're transparent about that.
- Domain Authority score
- Backlink count & quality
- Organic keyword rankings
- Traffic estimates
Who it's for
Built for everyone who cares about SEO
From first-time site owners to seasoned agency teams — the audit scales to your level of expertise.
No SEO background needed
Small business owners
Get a plain-language breakdown of exactly what's wrong with your site and what to fix first. No jargon, no guesswork. Just a prioritized to-do list you can hand to your developer.
- Instant prioritized fix list
- Plain-language issue explanations
- No technical expertise required
Validate your work, find gaps
Marketers & in-house SEO
Confirm your optimization efforts are working, catch regressions after site updates, and use the AI Visibility Score to stay ahead of the shift to AI-driven search.
- AI Visibility Score for future-proofing
- Core Web Vitals & field data
- Score history tracking over time
Audit clients at scale
Agencies & developers
Run instant audits on prospect or client sites. Download the PDF report to share with stakeholders. Use the competitor comparison to show clients where they stand.
- PDF download for client decks
- Competitor side-by-side comparison
- No per-seat or per-domain fees
Issue categories
What issues does the audit check for?
Every issue we find links directly to a specific fix — not generic advice.
Getting value
How to use your SEO report
The report is only as valuable as what you do with it. Here are the highest-ROI actions to take after your audit.
Fix critical technical issues first
Crawl blocks, noindex tags, and missing canonical URLs can make pages invisible to Google — no matter how good the content is.
Improve page speed
Follow the performance opportunities to compress images, defer unused JavaScript, and improve your Core Web Vitals scores.
Optimize titles & meta descriptions
Every page in the fix queue links to specific length guidance and an example rewrite. These are the highest ROI changes.
Add missing schema markup
The structured data section shows exactly which schema types are missing. Each has a JSON-LD code snippet ready to copy.
Boost your AI visibility score
Each failing AI factor includes a specific tip. Start with high-impact items like FAQPage schema and content depth.
Track progress over time
Re-run the audit after each round of fixes. The delta badge shows how your score changed since the last run — automatically.
Compare against competitors
Use the competitor comparison to benchmark. If your competitor's score is higher in accessibility, that's a gap to close.
Share the PDF with your team
Download a formatted PDF report and share it with developers or stakeholders. Everything is in one page, no account needed.
Why Machina
How we compare to other free SEO checkers
We built the tool we wished existed — with the features free tools always skip.
Based on features available in free tiers as of April 2026. Feature availability may change.
Common questions
Frequently asked questions
Ready for the next step?
Want us to fix what this audit finds?
The audit shows you the issues. Machina fixes them — and builds the SEO architecture that moves rankings long-term. We grew 101 Exterminators 5,567% in revenue using this exact approach. Based in Hollister, CA. Serving the Central Coast.