go: scraping web sites

Colly: Fast and Elegant Scraping Framework for Gophers.

Colly provides a clean interface to write any kind of crawler/scraper/spider


  • Clean API
  • Fast (>1k request/sec on a single core)
  • Manages request delays and maximum concurrency per domain
  • Automatic cookie and session handling
  • Sync/async/parallel scraping
  • Distributed scraping
  • Caching
  • Automatic encoding of non-unicode responses
  • Robots.txt support
  • Google App Engine support

Colly on GitHub