Sub-path 8 of 6

Go for Scrapers

Read fingerprinting tools. Run fast concurrent crawlers.

Optional appendix. Just enough Go to read and tweak tls-client and utls, and to write a fast concurrent crawler when Python's not low-level enough. Syntax, goroutines and channels, net/http, and TLS fingerprinting, no framework deep-dives, no becoming a Go developer.

~2 weeks part-time · 5 lessons

Lessons

1. GO1

   Why Go Matters for Scrapers

   Three reasons a Python scraper should learn enough Go to read and tweak: TLS fingerprinting (utls), concurrent throughput, and a growing ecosystem of fingerprinting and proxy tools written in Go.

   beginner
2. GO2

   Go Syntax You Actually Need

   A weekend's worth of Go: variables, types, structs, error handling, slices, maps. Enough to read scraping tools, not enough to write a backend service.

   beginner
3. GO3

   Goroutines & Channels: Concurrent Scraping the Go Way

   The reason Go is good for high-throughput crawling. Goroutines, channels, a worker-pool pattern, and a tiny concurrent crawler you can run.

   intermediate
4. GO4

   HTTP in Go: net/http Without a Framework

   The standard library is the framework. Build, send, customise HTTP requests in Go with net/http, headers, cookies, timeouts, proxies, and TLS settings.

   intermediate
5. GO5

   TLS Fingerprinting with utls & tls-client

   The one scraping-specific reason this sub-path exists. What a TLS fingerprint is, why anti-bots check it, and how Go's utls and tls-client libraries spoof it.

   advanced