Security Header Checker & HTTP Audit

Comprehensive socket telemetry, millisecond timing waterfall, hop-by-hop redirects, SSL certificates, security headers, and CDN edge cache analytics.

Quick Test:

HTTP Method

HTTP Protocol Version

Timeout (seconds)

Follow Redirect Chain Strict SSL Certificate Verification

Custom User-Agent

Inspection Error:

Target:

Status Code

Total Latency

Security Grade

CDN & Cache

Redirect Chain

SSL Certificate

Endpoint Telemetry

Destination IP:

Port / Protocol:

Server Banner:

Content-Type:

Compression:

RFC Reference:

Health & Posture Audit

HTTPS Transport Encryption

HSTS Strict Transport

Edge CDN Acceleration

Payload Compression

Network Latency Waterfall

Microsecond connection phase breakdown

DNS:

TCP:

TLS:

TTFB:

Download:

1. DNS Resolution

Domain to IP address mapping delay

2. TCP Connection

SYN / ACK three-way handshake time

3. TLS/SSL Negotiation

Cipher suite negotiation and cert exchange

4. Time to First Byte (TTFB)

Origin / Edge server processing time

5. Content Download

Transferring payload over network

Total Roundtrip

Complete execution duration

Redirect Chain Visualizer

Follow every hop from origin to final destination

SSL/TLS Certificate

Issuer / CA

Days Until Expiration

Valid Dates

Security Headers Audit

Audit Grade:

Edge CDN & Caching Intelligence

Signatures, cache hit ratios, and POP location

Cache Status

Edge POP Node

Age Header

Public Cacheable

Cache-Control Directives

Parsed Response Headers ()

Raw JSON Payload

What Is an HTTP Telemetry & Header Inspector?

An HTTP telemetry inspector executes socket-level diagnostic requests to analyze HTTP response status codes, raw headers, TTFB (Time to First Byte) latency waterfalls, hop-by-hop redirect chains (301/302), SSL/TLS certificate chains, and security headers (HSTS, CSP, X-Frame-Options).

1. Microsecond Timing Waterfall

Breaks down exact phase durations: DNS resolution, TCP handshake, TLS negotiation, TTFB, and download transfer.

2. Security Headers Grade

Evaluates HSTS, Content-Security-Policy, Permissions-Policy, X-Content-Type-Options, and Referrer-Policy.

3. CDN Edge Fingerprinting

Detects Cloudflare, CloudFront, Fastly, Akamai, and BunnyCDN edge PoP locations and cache status (HIT/MISS/DYNAMIC).

Frequently Asked Questions

TTFB is the duration from when the client sends an HTTP request until the first byte of data is received from the server. A TTFB under 100 ms indicates high server responsiveness and optimized backend processing.

Redirect loops occur when Page A redirects to Page B, which redirects back to Page A (e.g. conflicting HTTP to HTTPS rewrite rules or mixed Cloudflare SSL Flexible/Full settings).

Security headers instruct browsers to enforce strict HTTPS transport (HSTS), block Cross-Site Scripting (CSP), and restrict unauthorized iframe embedding (clickjacking prevention).

Enter your domain in the Security Header Checker to inspect the complete X.509 certificate chain, issuer Authority, SAN hostnames, and remaining days until expiration.