Site Health Check

Comprehensive website testing tool that analyzes performance, SEO, security, mobile responsiveness, and accessibility of any website.

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5,476+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

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AI Web Tool Generator

Build Your Own Custom Web Calculator in Seconds

Type what tool or calculator you need below. Our AI will build it instantly for your site.

About This Tool

The Website Tester is a powerful online tool that performs comprehensive analysis of any website by checking multiple critical aspects. Simply enter a URL and select which tests to run, and the tool will provide detailed reports on website performance, SEO optimization, security vulnerabilities, mobile responsiveness, and accessibility compliance. The tool performs actual tests using real web requests and analysis algorithms, not simulations. Results are presented in an easy-to-understand format with actionable insights to help improve your website.

Save your calculation history with a free account

How to Use

Enter the full website URL (including http:// or https://) in the input field
Select which tests you want to run (Performance, SEO, Security, Mobile Responsiveness, Accessibility)
Click the 'Run Tests' button to start the analysis
Wait for the tests to complete (typically takes 10-30 seconds)
Review the detailed results showing scores, issues found, and recommendations
Use the 'Export Results' button to download the report as JSON

Frequently Asked Questions

Find Quick Answers

What types of tests does this tool perform?

The tool performs five main types of tests: Performance (load time, page size), SEO (meta tags, headings, alt text), Security (HTTPS, headers, vulnerabilities), Mobile Responsiveness (viewport, touch elements), and Accessibility (ARIA labels, contrast ratios).

How long does the testing process take?

Testing typically takes 10-30 seconds depending on the website size and number of tests selected. The tool makes actual HTTP requests to the target website and analyzes the response.

Can I test websites that require authentication?

No, this tool can only test publicly accessible websites. Websites behind login walls or requiring authentication cannot be tested.

Are the test results saved or stored anywhere?

No, all tests are performed in real-time and results are only displayed in your browser. No data is stored on our servers after the session ends.

What should I do if a test fails or times out?

If a test fails, check that the URL is correct and the website is publicly accessible. Some websites may block automated testing tools. Try again or test a different page on the same site.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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