Free SEO Scanner — Audit Any Website in 30 Seconds
Run a full Google Lighthouse SEO audit on any URL. Get scores, ranked issues, and copy-paste code fixes — no signup, no credit card, no paid tier.
Quick answer
Why doesn't Google rank my website, and what should I check first?
When a page is not ranking, the cause is nearly always one of four things, checked in this order: the page is not indexable (a noindex tag, a robots.txt block, or a canonical pointing elsewhere), the page has no unique title or meta description that matches a real query, the page loads too slowly on mobile for Google's page experience signals, or the page has no internal links pointing at it so crawlers rarely reach it. A technical audit rules out the first and third in about 45 seconds; the second and fourth are content and site-structure decisions.
- First thing to rule out
- noindex, robots.txt block, or wrong canonical
- Second
- Missing or duplicated title and meta description
- Third
- Failing mobile Core Web Vitals
- Fourth
- No internal links to the page
- Audit engine
- Google Lighthouse, mobile and desktop
- Time to a full result
- About 45 seconds, free, no account
What to do next: Scan the exact URL you want ranked — not just the homepage — and fix any indexability issue before touching content or speed.
What the Free SEO Scanner Checks
Every scan runs 100+ technical SEO and performance checks across four categories:
On-Page SEO
Title tags, meta descriptions, heading structure, canonical URLs, hreflang, structured data (JSON-LD), Open Graph, robots directives.
Core Web Vitals
LCP, CLS, FCP, TBT, Speed Index and TTFB from a real Lighthouse run. INP is a field-only metric no lab test can measure, so TBT stands in for it.
Mobile-Friendliness
Viewport configuration, tap target sizing, font readability, mobile layout shifts — Google indexes mobile-first.
Crawlability & Best Practices
robots.txt, sitemap presence, HTTPS, mixed content, image alt text, link integrity, security headers.
Why Choose Our Free SEO Scanner?
Powered by Google Lighthouse
The same engine and the same scoring as Google PageSpeed Insights. Lab data, not field data — Search Console grades the same thresholds on real visitor measurements.
Issues Ranked by Impact
Instead of dumping 80 audits on you, we surface the top 3 fixes that will move your scores the most. Fix the right things first.
AI-Generated Code Fixes
For each issue, get a plain-English explanation and a copy-paste code snippet ready to drop into your project.
No Signup, No Paywall
Most 'free' SEO tools cap you at 3 scans before pushing a $49/month plan. We don't. There is no paid tier and no scan quota — just a fair-use limit of 2 scans per minute per IP so the service stays available.
Mobile + Desktop in Parallel
Google indexes mobile-first, but desktop still matters. We test both in one scan, side-by-side.
How It Works (3 Steps)
Paste Your URL
Enter any public website address — yours, a competitor's, or a client's.
We Run Lighthouse
Our scanner runs a full Google Lighthouse audit on mobile and desktop in parallel. Takes about 45 seconds.
Get Ranked Fixes
See your scores, top issues by impact, and copy-paste code fixes for each — all in plain English.
Free SEO Scanner FAQ
Is this SEO scanner really free?+
Yes — 100% free, no signup, no credit card, no email required. Fair-use rate limits apply (2 scans per minute per IP). We're ad-supported, which keeps the tool open to everyone.
What does the free SEO scanner check?+
Every scan runs a full Google Lighthouse audit on both mobile and desktop. You get scores for SEO, Performance, Accessibility, and Best Practices, plus Core Web Vitals (LCP and CLS, with Total Blocking Time as the lab stand-in for INP), meta tags, structured data, mobile-friendliness, crawlability, and 100+ technical checks.
How is this different from Google PageSpeed Insights?+
SnapSiteScan is powered by Google's Lighthouse analysis, so the underlying metrics are the same. The difference: we rank issues by impact, explain each one in plain English, and generate copy-paste code fixes — so you can act on the report instead of just reading it.
Can I scan any website?+
Yes — any public URL. You don't need to own the site or install anything. Useful for auditing competitors, client sites, or your own pages before launch.
How fast is the scan?+
Most scans complete in about 45 seconds. We test mobile and desktop in parallel and cache results for 12 hours so repeat checks are instant. Use 'Force Fresh Scan' after deploying changes.
Do you store my scan data?+
No. Results are cached anonymously by URL for 12 hours to keep the tool fast. We don't track who scanned what, and there are no user accounts.