Discovery
Crawlability and Indexability
Robots rules, sitemaps, status codes, redirects, canonicals and indexability.
Free SEO Audit Tool and Website SEO Analyzer
Analyze your website's crawlability, on-page SEO, internal links, Core Web Vitals and structured data. Get prioritized issues with the affected pages and recommended fixes.
Start your free SEO audit
Enter one public address. We discover the rest.
Public pages only
Robots.txt respected
Exact crawl coverage shown
Crawling...
Six Areas Covered by the Website SEO Audit
Each part of the audit answers a practical question. You can move from visibility problems to page experience without decoding a wall of technical labels.
Search presentation
Meta Tags and Search Appearance
Titles, descriptions, headings, Schema markup and duplicate page signals.
Site structure
Internal Links and Site Architecture
Broken links, orphaned sitemap URLs, crawl depth, anchor text and internal link strength.
Page experience
Core Web Vitals and Page Performance
Lighthouse scores, LCP, CLS, TBT, page weight and render-blocking clues.
Presentation
Open Graph and Social Media Previews
Desktop, mobile, search, Open Graph, LinkedIn, Facebook and X previews.
Trust and footprint
Security, Domain History and Carbon Footprint
Security headers, domain age, public archive history, green hosting and estimated carbon.
How the SEO Audit Tool Analyzes Your Website
Crawl the Website
We start with your URL, read robots.txt and the sitemap, then follow same-site links up to your selected page budget.
Analyze SEO Signals Across Pages
Page-level evidence is combined to expose duplicates, orphaned URLs and repeated template problems a single-page test misses.
Review Prioritized SEO Issues
Blockers come first, affected URLs stay attached, and every finding explains why it matters and what to change.
What the Website SEO Analyzer Checks
The overall grade helps you orient yourself. The evidence underneath it is what tells you what to do.
| Audit area | Signals examined | What you receive |
|---|---|---|
| Crawl and indexing | Status codes, redirects, sitemap, robots, canonicals and directives | Coverage percentage and affected URLs |
| On-page SEO | Titles, descriptions, headings, language, content patterns and JSON-LD Schema markup | Specific failures with source evidence |
| Link architecture | Internal and bounded external links, anchors, depth and orphan candidates | Broken destinations and weakly linked pages |
| Browser performance | SEO, Performance, Accessibility, Best Practices, LCP, CLS and TBT | Four scores, three lab metrics and device captures |
| Search and sharing | Search snippet, Open Graph tags, Twitter Card tags and preview images | Visual previews for search and major social platforms |
| Context and sustainability | Security headers, RDAP, public archives, transfer size and green hosting | Header score, domain history and carbon estimate |
Browser performance uses Google PageSpeed Insights when available. The crawl remains separate so JavaScript rendering cannot hide what the server originally delivered.
How to Prioritize SEO Audit Findings
A long report is only useful when its order reflects the likely impact. Scan.now separates blockers from repeated patterns and editorial review signals.
1Indexing and availability blockersServer errors, blocked pages, broken canonicals and redirect failures.
2Repeated site-wide patternsDuplicate metadata, broken templates and navigation weaknesses.
3Page-level improvementsWording, length and presentation signals that benefit from human review.
Crawl and Analyze Up to 5,000 Website Pages
Premium also combines SEO, website security, TLS, email authentication, LLM key exposure and WordPress checks into one full audit.
Continue checking this website
These tools examine adjacent parts of the same public site.
Tech Stack Scanner
CMS, frameworks, analytics, CDN and hosting
Common Crawl Harmonic Centrality Checker
Web graph centrality and PageRank positions
Website Performance Scanner
Response time, HTML size and render-blocking scripts
Website Vulnerability Scanner
Headers, TLS, cookies, exposed files
Frequently asked questions
How many pages do you crawl?
As many as the budget you pick: 30, 100 or 250. Breadth-first from the URL you enter, plus URLs taken from your sitemap, honouring robots.txt throughout. On a large site that is a small sample, and the report states the percentage it covered rather than implying it saw everything. The point is to find the patterns your templates repeat, which a sample shows perfectly well.
Is this the same as Lighthouse?
The entered page is tested with Google PageSpeed Insights for Lighthouse SEO, Performance, Accessibility and Best Practices scores, Core Web Vitals lab metrics and rendered screenshots. Scan.now also crawls multiple pages to find duplicates, orphan pages, broken links and other patterns that a one-page Lighthouse test cannot see.
Will the crawl slow my site down?
No. Requests are paced, run four at a time at most, and stop at the budget you chose. Even at 250 pages it is a fraction of the load a search engine crawler places on the same site in a day.
Do you run JavaScript?
The site crawl reads the HTML the server sends so its findings remain deterministic and crawl-wide. The separate PageSpeed Insights browser test renders the entered page with JavaScript to measure layout, blocking time and visual presentation.
Can it find orphan pages?
Only where you have a sitemap. Following links can reach nothing but linked pages, so a crawl on its own can never find a page with no links to it. We seed the crawl with sitemap URLs and report the ones that turned out to have no inbound link from any page we saw. Without a sitemap the check is skipped rather than passed, because passing it would mean claiming something we did not test.
Why does word count matter?
It does not, on its own. It is a proxy for whether a page covers its subject, and it is reported so you can look. A 90-word contact page is fine; ninety 90-word pages generated from a template are the pattern search engines act on.
