TraceMiner Blog
Insights, guides, and technical writeups.
Browse published posts about HAR files, debugging, backend discovery, and modern engineering workflows.
Debugging Production With Two HAR Files: Working vs Broken
It works for you and fails for one customer. Capture a HAR from each, diff them, and the cause is usually obvious within minutes. A practical method.
Read post →Give Your AI Agent an API Instead of a Browser: HAR to MCP Server in 10 Minutes
Browser automation makes agents read pages like humans — slow, expensive, and brittle. Here is how to turn a HAR file into an MCP server your Claude Code agent calls directly.
Read post →How to Reverse-Engineer a Web App's Auth Flow: Cookies, JWTs, Refresh Tokens, and PKCE
Most guides to finding a site's private API stop at the Network tab. The hard part is auth. Here is how to read a token exchange out of a HAR file and reproduce it.
Read post →What is a HAR file and How it is structured
HTTP Archive (HAR) format files contain network request data in JSON format to track website performance. Learn its structure and how to analyze it with examples.
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