HTTP Headers Viewer
Enter a URL to fetch HTTP headers
HTTP Headers
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Request Headers
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Headers Analysis
Security Headers
Performance Headers
About HTTP Headers
Common Request Headers:
- • User-Agent: Client application info
- • Accept: Accepted content types
- • Authorization: Authentication credentials
- • Referer: Referring page URL
- • Cache-Control: Caching directives
Common Response Headers:
- • Content-Type: Resource media type
- • Content-Length: Response body length
- • Server: Server software info
- • Set-Cookie: HTTP cookies
- • Cache-Control: Caching directives
Security Headers Checklist
Content-Security-Policy - Prevents XSS attacks
X-Frame-Options - Prevents clickjacking
X-Content-Type-Options - Prevents MIME sniffing
Strict-Transport-Security - Enforces HTTPS
X-XSS-Protection - XSS filtering
Referrer-Policy - Controls referrer info
Permissions-Policy - Controls browser features