Free Online Website SEO Checker
Updated July 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.
Diagnosing web and network issues quickly is critical for site owners, developers, and SEO professionals. The Website SEO Checker delivers actionable data 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.
How to use the Website SEO Checker
Open the tool, enter your input, and get your result instantly. The interface is designed to be self-explanatory — no tutorial or manual needed. Where options exist, they are clearly labelled with sensible defaults. Your result can be copied to the clipboard or downloaded with a single click.
Tips for the best results
- Results reflect live server data — refresh to get the latest reading.
- Compare results across multiple URLs to identify inconsistencies quickly.
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?
Everything runs locally in your browser. No data is sent to a server, logged, or stored anywhere. The tool is completely free with no usage limits, no premium tiers, and no account required. 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
- Run the Website SEO Checker before and after making server configuration changes to confirm the update took effect.
- Use the browser's Developer Tools alongside the Website SEO Checker for a complete picture of network and performance behaviour.
- Results reflect live data — re-run the check after a recent change to verify propagation across DNS caches.
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 the Website SEO Checker free to use?
Yes, the Website SEO Checker on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.
How does the Website SEO Checker work?
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. Your input is processed on Cloudflare's edge infrastructure — it is not stored, logged, or shared with any third party.
Do I need to install anything to use the Website SEO Checker?
No installation needed. The Website SEO Checker runs entirely in your web browser on any device — desktop, tablet, or mobile.
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.
Does the Website SEO Checker work offline?
No — the Website SEO Checker processes your input on Cloudflare's edge servers and requires an internet connection.
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.
Does the Website SEO Checker work on all browsers?
Yes. The Website SEO Checker is built with standard browser APIs and works on all modern browsers including Chrome, Firefox, Safari, and Edge — on both desktop and mobile. No plugins, extensions, or third-party software are required.
How do I save or export my results from the Website SEO Checker?
Select and copy the result text to paste into any document or app. For image tools, a Download button saves the file directly to your device. Your browser's built-in screenshot function also captures results quickly. No account or login is required.
The allio Tools MCP server brings this tool and 105+ others directly into your coding assistant — running locally on your machine with zero data collection.