HTTP headers lookup
🧾 HTTP Headers Lookup – Analyze Any Website's Response Headers
Check status codes, security headers, caching policies & server info
Use our free HTTP Headers Lookup Tool to instantly inspect the response headers returned by any website or web server. Discover critical information such as HTTP status codes, server type, content type, caching settings, and security headers.
Ideal for developers, security experts, SEO professionals and web performance analysts who want to ensure their site is secure, fast and SEO-compliant.
🔍 What Are HTTP Headers?
HTTP headers are metadata sent between a client (like a browser) and a server. They control how content is delivered, cached, secured and interpreted. Understanding response headers helps with:
- ✅ Debugging redirect loops and server errors
- ✅ Checking SSL/TLS configuration
- ✅ Verifying cache behavior and CDN setup
- ✅ Auditing security headers (e.g. CSP, HSTS)
- ✅ Identifying server and hosting environment
⚙️ Features of the HTTP Header Tool
- ✅ Shows full response headers in real time
- ✅ Detects HTTP status (200, 301, 404, etc.)
- ✅ Highlights important SEO and security headers
- ✅ Works with any HTTP/HTTPS website
- ✅ Mobile-ready and fast-loading interface
- ✅ Free to use with no login required
📋 Sample Output – What You’ll See
Header | Example Value | Description |
---|---|---|
Status | 200 OK | Server responded successfully |
Content-Type | text/html; charset=UTF-8 | Format and encoding of the content |
Server | nginx/1.18.0 | Server software used |
Cache-Control | max-age=3600 | Caching policy for the resource |
Strict-Transport-Security | max-age=31536000; includeSubDomains | Forces HTTPS and improves security |
X-Frame-Options | SAMEORIGIN | Prevents clickjacking attacks |
🔐 Why HTTP Headers Matter
- 🛡️ Strengthen website security with proper header settings
- 🚀 Improve SEO by avoiding redirect chains or server errors
- 📈 Optimize performance with correct caching rules
- 📉 Reduce bounce rate through fast content delivery
- 📊 Audit server behavior and content delivery strategy
🚀 Try It Now – Free HTTP Headers Checker
Simply enter a website URL and get instant, detailed header data. No account needed – just fast and accurate results for every domain.
🔗 Bonus Tools: Combine with SSL, Ping & Brotli
Use together with our SSL Lookup, Ping Tool and Brotli Checker for a full-stack analysis of your website’s health and performance.
🔒 No Tracking. No Storage.
Your privacy is important. All lookups are processed anonymously. We store no logs, no IPs, no user data.
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