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Key Features
Instant Calculation
Get accurate results in real time with our optimized algorithm.
Mobile Friendly
Fully responsive design. Works on all devices & screen sizes.
Privacy Focused
Your data stays on your device. We don't store any inputs.
100% Free
No hidden costs. This tool is completely free forever.
Unlike a static HTTP status code reference table, this tool actually contacts a website live and reports what it finds — whether it's online, what status code it returns, and how long it took to respond.
This calculator sends a live request to a URL you provide and reports its current status.
How it works
Enter a website URL. The tool resolves the hostname, verifies it's a public address (not an internal or private network address), and sends a live HTTP request — reporting the status code, a plain-language status label, and the response time.
- Enter website URL.
- Click Calculate to see your results.
Examples
A working site
A live, reachable website typically returns an HTTP 200 status — labeled "Online" — along with its response time in milliseconds.
Who should use it
- Quickly checking whether a website is currently online.
- Diagnosing a broken link or server error by seeing its live HTTP status code.
Industry applications
- Web development and site monitoring
- IT support and troubleshooting
Advantages
- Performs a genuine live check, not just a static reference lookup.
- Includes response time alongside the status code for a fuller picture.
Limitations
- Doesn't automatically follow redirects — you'll need to check the target URL separately if you want its status.
Common mistakes to avoid
- Expecting the tool to follow redirects automatically — it deliberately reports the redirect status itself instead.
- Checking a URL that requires authentication or blocks automated requests, which may return an unexpected status code.
Best practices
- If you get a redirect status, check the redirect target URL separately to see its actual final status.
Tips
- For the static reference table of what each HTTP status code means, see this site's HTTP Status Code Lookup tool — use that alongside this live checker for full context.