HTTP Header Checker

What is HTTP Header Checker?

HTTP Header Checker lets you see all the hidden information a website sends to your browser. Just enter any URL and instantly view security headers, caching settings, server info, and more. Great for checking if your site is properly secured.

Why Would You Need to Check HTTP Headers?

Here are common situations where checking HTTP headers comes in handy:

• Website owners: Make sure your security headers are properly configured to protect visitors
• Web developers: Debug caching issues, CORS problems, or redirect chains
• SEO specialists: Check response codes and caching settings that affect page speed
• Security auditors: Verify that sites have proper protection against common attacks

How to Check HTTP Headers - Step by Step

1. Enter the URL: Type or paste any website URL including https:// in the input box
2. Choose the method: Use GET for full response or HEAD for headers only
3. Click Check: Hit the Check button and wait a few seconds for results
4. Review the score: See your security grade from A to F at the top
5. Check missing headers: Click the Missing Security tab to see what needs fixing

Key Features

• Security score: Get an instant A to F grade based on your security headers
• Organized view: Headers sorted by category - security, caching, server, CORS, and more
• Missing header alerts: See which security headers you should add with copy-paste examples
• Response info: View status code, response time, server IP, and SSL status
• Raw headers: Copy the complete raw header output for technical analysis
• Follow redirects: Option to follow redirect chains or stop at the first response

Tips for Best Results

• Aim for a security score of B or higher (80%+) for good protection
• Add the missing security headers shown in the recommendations
• Hide server version info (Server and X-Powered-By headers) to reduce attack surface
• Test both your main domain and subdomains separately

Frequently Asked Questions

What is a good security score?

A score of 80% or higher (grade B+) means you have good security headers. Aim for 90%+ (grade A) for the best protection.

Why does my site show warnings for Server header?

The Server header reveals your web server software and version. Hackers can use this to find known vulnerabilities. It is safer to hide or remove it.

Can I check any website?

Yes, you can check any publicly accessible URL. Just enter the full URL including https://.

Is this tool free?

Yes, completely free with no registration required. Check as many URLs as you need.