HTTP Header Check – Analyze Website Headers Instantly

Understand the Importance of HTTP Header Check

Every time you visit a website, the server sends hidden instructions to your browser in the form of HTTP headers. These headers control everything from content type and caching to security protocols like HSTS and CSP.

Using our HTTP Header Checker, you can quickly check site headers, verify security settings, and troubleshoot response issues. Whether you’re a developer, SEO professional, or security expert, analyzing headers is critical for ensuring performance, compatibility, and protection.

Our online header checker makes this process simple, fast, and accurate—no technical setup required.

1. Enter the Website URL: Paste the site or page you want to analyze.
2. Start the Header Check: Click the “Check” button to begin scanning.
3. View HTTP Response Codes: Instantly see whether the page returns 200 OK, 301 redirect, 404 error, or 500 server issue.
4. Review Security Headers: Check if HSTS, CSP, X-Frame-Options, X-XSS-Protection, and other protocols are active.
5. Inspect Server Headers: Get details about the server type, cookies, caching, and encoding.
6. Download or Share Report: Export the results to developers, SEO teams, or IT administrators.

• Identify Redirect Chains: Prevent SEO penalties from multiple 301/302 redirects.
• Strengthen Security: Verify headers like HSTS, CSP, and X-Frame-Options.
• Optimize Performance: Ensure caching, compression, and encoding headers are correctly configured.
• Troubleshoot Errors: Detect 404 or 500 response codes instantly.
• Understand Server Behavior: See how your server interacts with browsers.
• Improve SEO Rankings: Correctly configured headers lead to better crawlability.

• Instant HTTP Header Analysis: Analyze all response headers including content type, cookies, and caching.
• Security Headers Check: Verify HSTS, CSP, X-Frame-Options, X-XSS-Protection, and Referrer-Policy.
• HSTS Configuration: Confirm if your site enforces HTTPS with HSTS.
• Response Code Detection: Detect if a page delivers 200, 301, 302, 404, or 500 codes.
• Redirect Analysis: Uncover redirect chains and loops that harm SEO.
• Cache Control & Expiry: Ensure Cache-Control, Expires, and ETag headers are set.
• Compression & Encoding: Check if GZIP or Brotli is enabled.
• Server Header Identification: Detect server type (Apache, Nginx, IIS, etc.).
• Cookie Security Audit: Check Secure and HttpOnly flags.
• Browser Compatibility: Verify consistency across Chrome, Safari, Firefox, Edge, and mobile.
• SEO-Friendly Headers: Audit canonical headers, language headers, and redirect codes.
• CORS Policy Check: Validate CORS implementation for APIs and external resources.
• Report Exporting: Download reports for debugging or compliance.
• Free & Unlimited: No sign-ups, unlimited checks.

• Developers: Debug server response headers and fix misconfigurations.
• SEO Specialists: Detect redirect issues, missing canonical headers, and errors.
• Security Analysts: Audit security headers for compliance.
• System Administrators: Monitor server behavior and caching.
• Webmasters: Ensure HTTPS enforcement and error-free browsing.
• Agencies: Provide header audit reports to clients.

Why Choose Our Header Checker

Many header check tools are either too technical or limited in scope. Our online HTTP Header Check combines simplicity, accuracy, and depth.

You don’t need coding skills—just enter a URL and get a complete breakdown of response headers, security protocols, and server information.

Unlike other tools, ours offers free unlimited checks, detailed security audits, and exportable reports. Perfect for developers, SEO professionals, and businesses.

1. What is an HTTP Header Check tool?

It’s a tool that analyzes the response headers sent by a website server to browsers.

2. Can this tool check security headers?

Yes, it checks for HSTS, CSP, X-Frame-Options, XSS Protection, Referrer Policy, and more.

3. Is this header checker free?

Yes, our tool is 100% free and unlimited.

4. Can I check server response codes?

Yes, it detects 200, 301, 302, 404, 500, and other status codes.

5. How do I check HSTS on my site?

Simply enter your domain, and the tool will confirm if HSTS is enabled.

6. Does this tool show server type?

Yes, it displays the server type (Apache, Nginx, IIS, etc.) along with versions.

7. Can I use this tool for SEO audits?

Absolutely. It helps detect redirect chains, missing canonical headers, and crawlability issues.

8. Does it require installation?

No, it’s an online header checker—just enter a URL to get results.