Technical SEO crawl
Checks HTTP errors, redirect chains, robots directives, sitemap conflicts, indexability, and verified canonical targets.
Free SEO audit tool / Atlas × VOID
Free SEO audit for what search can actually reach.
Run a free website SEO checker across up to 25 representative pages. Atlas tests technical SEO crawlability, indexability, on-page signals, internal links, structured data, and AI search readiness—then reports only findings supported by observed evidence.
Free website SEO checker
What this free SEO audit checks
Atlas is a technical SEO audit tool built around inspectable evidence. It samples different URL groups instead of treating the first 25 links as the whole website, records what the crawler could and could not access, and ties every finding to the analyzed pages behind it.
On-page SEO checker
Reviews page titles, H1 headings, duplicate content signals, structured-data validity, and raw-versus-rendered content gaps.
Website architecture audit
Finds internal links that lead through redirects, point to errors, or send visitors and crawlers toward noindex pages.
AI search readiness signals
Shows whether important content and structured identity are available in raw HTML or depend on browser rendering.
Prioritized SEO findings
Orders observed issues by severity and confidence, with affected-page counts, example URLs, and a concrete retest condition.
Bounded, free site audit
Analyzes up to 25 representative pages and selectively renders up to two pages without requiring an account or payment.
Illustrative sample report
See the evidence, coverage, and priorities before you run a crawl
This static example shows the report structure using fictional URLs and sample values. It is not a scan of example.com or a claim about any live website.
Observed coverage
What the SEO audit actually inspected
146URLs discovered
25Pages analyzed
24Valid HTML pages
2Pages rendered
8URL groups represented
2Sitemaps processed
This is a stratified sample report using sitemap group round robin plus bfs. It does not claim complete-site coverage.
Sample-based signal
SEO audit score
discovery and indexability88
architecture72
content extractability67
structured identity85
Prioritized SEO findings
2 findings
Internal links pass through redirect chains
6 of 24 applicable pages in the analyzed sample.
- https://example.com/services/heating
Next step: Update internal links to the final canonical destinations, then recrawl the affected pages.
A canonical target conflicts with the sitemap owner
1 of 24 applicable pages in the analyzed sample.
- https://example.com/about
Next step: Choose one canonical owner, align the sitemap entry, and verify the raw canonical after release.
How the site audit works
A technical SEO audit with explicit coverage
A quick SEO score is only useful when you can see the crawl behind it. This tool keeps discovery, analyzed-page evidence, warnings, and derived scores separate.
Explore technical SEO and AI search visibility services- 01
Enter a website URL
Submit a public homepage or canonical URL. Bare domains are normalized to HTTPS automatically.
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Discover and sample pages
Atlas reads robots.txt and available sitemaps, groups discovered URLs, and selects a representative bounded sample.
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Compare crawl evidence
The audit inspects fetched HTML and selectively rendered pages while recording coverage and access limitations.
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Review what to fix first
The report separates observed evidence from derived scores and withholds a score when coverage is not defensible.
Privacy and data handling
Know what the crawler receives—and what it does not
Site Snapshot is designed for public website evidence, not confidential systems or customer data. Report availability and provider retention can vary, so this free tool does not promise a specific deletion timetable.
Read the VOID privacy policy- 01
What you submit
The form accepts one public HTTP or HTTPS URL. It does not request an account, payment details, file upload, login, or crawl-limit override.
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What the audit observes
The crawler can inspect public robots and sitemap files, response metadata, raw HTML, links, and up to two rendered pages. It may observe any contact details or other information the target site already publishes.
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How requests are protected
Provider credentials and private run identifiers stay server-side. Browser responses are not cached, and abuse controls use the request network address and target hostname without returning those rate-limit subjects in the report.
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What not to submit
Do not enter private preview URLs, credentials, access tokens, customer portals, or personal data in a URL. Treat the report link as shareable access, and use the full privacy policy for the governing terms.
SEO audit FAQ
Questions about the free SEO checker
Is this SEO audit tool free?
Yes. The Atlas Site Snapshot is a free SEO audit tool for one public website at a time. It does not require an account, payment, or browser extension.
What does the website SEO checker analyze?
It checks a representative sample for crawl and indexability problems, HTTP and redirect issues, titles and H1 headings, internal-link defects, canonical errors, sitemap conflicts, invalid JSON-LD, duplicate-content signals, and content that depends on browser rendering.
How many pages does the free SEO site audit crawl?
The snapshot analyzes up to 25 representative pages and may render up to two pages in a browser. Every report states the URLs discovered, pages analyzed, valid HTML pages, and URL groups represented.
Does the audit check AI search readiness?
It checks technical prerequisites that affect search and AI systems, including crawl access, extractable HTML, structured identity, and rendering gaps. It does not claim to measure citations or rankings inside every AI answer engine.
Is this a complete technical SEO audit?
No. This is a bounded technical SEO snapshot, not an exhaustive enterprise crawl, backlink audit, rank tracker, keyword database, or Core Web Vitals lab test. Use it to find evidence-backed priorities and decide where deeper investigation is warranted.