HTTP Header Inspector
Server APINo login required
Inspect HTTP response headers of any website instantly. Analyze security, caching, and server information in a clean view.
Quick Presets:
OWASP Security Audit
Grades your site (A+ to F) on 6 vital security headers including HSTS, CSP, and X-Frame-Options.
Cache & CDN Analysis
Inspect Cache-Control, ETag, Age, and CDN edge cache hit ratios (Cloudflare, Fastly, Akamai).
cURL & Fetch Snippets
Generates ready-to-paste cURL CLI commands and JavaScript fetch() code snippets to reproduce queries.
Frequently Asked Questions
Is HTTP Header Inspector free to use?
Yes, HTTP Header Inspector is 100% free to use on AgentXAlpha. There are no subscriptions, registration requirements, or hidden daily limits.
How does HTTP Header Inspector protect my privacy and data?
HTTP Header Inspector processes requests securely over encrypted HTTPS connections and does not store, log, or share your input.
Does HTTP Header Inspector work on mobile devices?
Yes, HTTP Header Inspector is fully responsive and optimized for touchscreens and desktop screens alike across iOS, Android, macOS, Windows, and Linux.
What are the main features of HTTP Header Inspector?
Inspect HTTP response headers of any website instantly. Analyze security, caching, and server information in a clean view. It is engineered for fast, zero-latency execution directly in your browser.
Recommended For You
More Network Utilities
Network
DNS Lookup
Query A, AAAA, MX, CNAME, TXT, NS, SOA records for any domain via Cloudflare DNS-over-HTTPS.
Network APILaunch
Network
IP & Domain Intelligence
What is my IP, GeoIP lookup, ISP & ASN routing, domain-to-IP DNS resolution, domain WHOIS & RDAP lookup, and reverse IP host discovery.
Network APILaunch
Network
Email Header Analyzer
Trace email delivery paths, check SPF/DKIM/DMARC, and detect delays or spoofing.
Client-SideLaunch