Free Online Website SEO Checker
Updated September 2026
Free SEO analysis tool. Score your site across 30+ checks — title tags, meta, headings, speed, security headers, Open Graph, Twitter Card, JSON-LD schema, AEO readiness, robots.txt, sitemap, and more. Download PDF report.
Verified Capabilities
Scores Title & Meta, Headings & Content, Technical, Security, Social, Schema & AEO, and Canonical & Index.
Gives a 0-100 score with letter grade and a ranked list of the highest-impact issues to fix first.
Downloadable PDF report, watermarked on the free plan and clean on Pro.
Free plan allows 5 scans/day and shows only the first 2 detail sections unblurred — full breakdown and unlimited scans require Pro.
The Website SEO Checker handles work a browser alone can't do instantly, using Cloudflare's globally distributed edge network to process your request in seconds.
Free SEO analysis tool. Score your site across 30+ checks — title tags, meta, headings, speed, security headers, Open Graph, Twitter Card, JSON-LD schema, AEO readiness, robots.txt, sitemap, and more. Download PDF report. Results are immediate — no waiting, no loading screens, no account required.
Who uses the Website SEO Checker?
- Check a page before publishing
- Audit competitor SEO
- Verify schema markup is correct
- Check social media preview tags
Common uses and search terms
The Website SEO Checker is frequently used for: seo checker, seo score, website seo, seo analysis, page score, meta tags, open graph, schema checker, aeo. Whether you need a quick result or are working through a longer project, the tool handles all common variations without any configuration.
Why use Allio Tools's Website SEO Checker?
Your input is sent securely to Cloudflare's edge network for processing — it is never stored, logged, or shared with any third party, and is discarded immediately after your result is returned. Free use is capped at 5 per day, since this tool relies on paid backend infrastructure to run — Pro removes the daily limit. No account is required for the free tier. Available in 11 languages and optimised for all screen sizes, the Website SEO Checker works on desktop, tablet, and mobile with no app download needed.
See also:IP Address Lookup · Website Speed Test · DNS Lookup
How the Website SEO Checker works
Enter your website URL and click Analyse.
Results appear in seconds — 30+ SEO factors checked.
Review your score, category breakdown, and top issues.
Download a PDF report (free plan includes watermark).
Free plan: 5 scans per day. Pro: unlimited + clean PDF.
Tips & tricks
- The free plan shows your top 5 issues and the first 2 detail sections in full — the remaining sections are visible but blurred until you upgrade.
- Run the scan again after fixing an issue; the free plan allows 5 scans per day, shown as a countdown on screen.
- The DA/PA and backlink cards link to external tools (Moz, Ahrefs) because those metrics need proprietary crawl indexes this tool doesn't have access to.
- The free PDF report includes a watermark — Pro removes it and unlocks the full check-by-check breakdown in the download too.
Frequently Asked Questions
What does the SEO score mean?
The score (0-100) measures how well your page follows SEO best practices across 7 categories: title/meta, headings/content, technical, security, social media tags, schema markup, and indexability.
Why is my DA/PA not shown?
Domain Authority (DA) and Page Authority (PA) are Moz proprietary metrics that require their paid index. We link you to free DA/PA checkers directly.
What is AEO and why does it matter?
AEO (Answer Engine Optimisation) is optimising for AI assistants and featured snippets. FAQ, HowTo, and Article schema are key signals.
How many free scans do I get?
5 scans per day on the free plan. Upgrade to Pro for unlimited scans and a full watermark-free PDF report.
Is my data safe when using the Website SEO Checker?
Yes. Your input is processed on Cloudflare's globally distributed edge network. Data is used only to generate your result and is never stored, logged, or shared with any third party.
How current is the data returned by the Website SEO Checker?
The Website SEO Checker fetches live data in real time each time you run it. Results reflect the current state of the server or domain at the moment of the request.
Why does the Website SEO Checker sometimes return different results than other tools?
Results depend on the real-time state of the target server and DNS propagation, which can vary by geographic region and caching TTL. If you see inconsistencies, wait a few minutes and re-test — DNS changes can take up to 48 hours to propagate fully worldwide.
Works with ChatGPT, Claude, Cursor, GitHub Copilot, VS Code, Poe and more — 106+ tools, zero data collection.