Network Analysis Guide

Understanding Network Analysis

Network analysis helps identify and block unwanted traffic by examining network requests. Key aspects include:

  • Traffic patterns
  • Request headers
  • Response data
  • Connection types

Analysis Tools

Browser Developer Tools

  • Network panel
  • Request inspection
  • Performance metrics
  • Filter capabilities

Wireshark

  • Packet capture
  • Protocol analysis
  • Traffic filtering
  • Deep inspection

Traffic Types

HTTP/HTTPS

GET /ads/tracking.js HTTP/1.1
Host: analytics.example.com
User-Agent: Mozilla/5.0
Accept: */*

WebSocket

ws://tracking.example.com/socket
Connection: Upgrade
Upgrade: websocket
Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==

Analysis Techniques

  • Request pattern analysis
  • Domain correlation
  • Header inspection
  • Response content analysis
  • Traffic timing analysis

Common Patterns

Tracking Requests

  • Beacon endpoints
  • Analytics pixels
  • Session tracking
  • Cross-site tracking

Ad Network Traffic

  • Bid requests
  • Ad content delivery
  • Impression tracking
  • Click tracking

Analysis Steps

  1. Capture traffic
  2. Filter relevant requests
  3. Analyze patterns
  4. Identify endpoints
  5. Create blocking rules

Advanced Analysis

MITM Proxy

mitmproxy
  --mode transparent
  --showhost
  -w traffic.flow

TLS Inspection

openssl s_client -connect example.com:443
CONNECTED(00000003)
depth=2 C = US, O = Example CA
verify return:1

Best Practices

  • Regular monitoring
  • Pattern documentation
  • Rule verification
  • Performance impact analysis