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SSL/TLS Proxy Detector

Detect CDN and proxy servers

About SSL/TLS Proxy Detector

Our free SSL/TLS Proxy Detector identifies CDN and proxy servers in your SSL connection path. Detects Cloudflare, Akamai, CloudFront, Fastly, and other reverse proxies by analyzing response headers, TLS fingerprints, and connection metadata.

How to Use

  1. Enter the domain name to check for proxy or CDN services
  2. Click "Run" to detect any proxy servers in the connection path
  3. Review the detected proxy provider and connection metadata

Use Cases

  • Identifying CDN providers protecting your target domains
  • Traffic routing analysis for network troubleshooting
  • Discovering origin server IP addresses behind reverse proxies

Frequently Asked Questions

The tool detects major CDN providers including Cloudflare, Akamai, Amazon CloudFront, Fastly, Google Cloud CDN, StackPath, and many others. Detection is based on response header signatures and TLS fingerprint analysis.
Reverse proxies terminate SSL connections and establish new ones to the origin server. This means the proxy holds the SSL certificate, which can affect certificate transparency, HSTS, and end-to-end security guarantees.
Knowing whether a domain is behind a CDN or proxy is important for security assessments, troubleshooting SSL issues, understanding traffic routing, and ensuring that security policies like HSTS and certificate pinning are properly configured.

Tips & Best Practices

  • Detect proxy servers that may affect TLS connection security
  • Verify proxy SSL/TLS configuration matches requirements
  • Monitor proxy servers for certificate and configuration changes
  • Configure proper TLS termination in proxy environments

Technical Details

Detection: Proxy server detection and identification
TLS: Proxy SSL/TLS configuration analysis
Security: Proxy impact on TLS security
Output: Proxy detection results with security assessment