Free Website SEO Checker
Analyze any website's SEO health with detailed recommendations.
Enter Website URL
Enter a website URL above to run a comprehensive SEO audit
About This Tool
This client-side SEO checker analyzes the HTML of any publicly accessible web page. Results are based on the raw HTML retrieved through a CORS proxy and may not reflect JavaScript-rendered content. For server-side metrics (actual load time, HTTP headers, Core Web Vitals), use the PageSpeed Insights and Mobile-Friendly Test links provided.
On-Page SEO
- Title tag length & pixel width
- Meta description
- Canonical URL
- Robots meta
- Language attribute
Content & Links
- Heading hierarchy (H1-H6)
- Word count & text ratio
- Image alt attributes
- Internal / external links
- Broken link hints
Technical & Security
- HTTPS & mixed content
- Schema.org structured data
- CSP meta tag
- Doctype declaration
- External link security
Social & Performance
- Open Graph tags
- Twitter Cards
- Page size & resources
- Lazy loading
- Resource hints
Frequently Asked Questions
Is the Website SEO Checker free?
Yes, the Website SEO Checker is completely free with no registration required.
What does the SEO Checker analyze?
The Website SEO Checker examines meta tags, headings, content quality, page speed factors, mobile-friendliness, and other on-page SEO elements.
Is my data safe with this tool?
Absolutely. The Website SEO Checker processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.
Does the Website SEO Checker work on mobile devices?
Yes, the Website SEO Checker is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the Website SEO Checker in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
Does this tool follow Google's latest guidelines?
Yes, the Website SEO Checker is built following current Google Search guidelines and best practices. We regularly update the tool to reflect changes in search engine requirements.
How do I use the Website SEO Checker?
Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.
Which browsers are supported?
The Website SEO Checker works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
Related Tools
Free Meta Tag Generator
Generate SEO-friendly meta tags for your website. Title, description, keywords, and more. Free, fast, and works entirely in your browser with no sign-up required.
Free Open Graph Tag Generator
Create Open Graph and Twitter Card meta tags for social media sharing. Free, fast, and works entirely in your browser with no sign-up required.
Free Robots.txt Generator
Generate a robots.txt file to control search engine crawling. Free, fast, and works entirely in your browser with no sign-up required.
Free Keyword Density Checker
Analyze keyword density and frequency in your content for SEO optimization. Free, fast, and works entirely in your browser with no sign-up required.
About Free Website SEO Checker
Free Website SEO Checker is a free, browser-based tool in our SEO Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.