gocrawl is a lightweight web crawling library written in the Go programming language that enables developers to build custom web crawlers and data extraction tools. gocrawl focuses on providing a minimal yet powerful crawling engine that can be easily extended and adapted for different web scraping or indexing tasks. It is designed to be polite when accessing websites by respecting crawling rules such as robots.txt policies and applying crawl delays for each host. It executes requests concurrently using Go’s goroutines, allowing efficient and scalable page retrieval across multiple URLs. Developers have full control over the crawling workflow, including which URLs are visited, inspected, and processed during execution. gocrawl integrates with HTML parsing tools so responses can be inspected and queried in a structured way while crawling. Instead of implementing a full search indexing pipeline, the library provides the core crawling engine and extension hooks.
Features
- Full control over URLs to visit, inspect, and process during crawling
- Crawl delays applied per host to avoid overloading servers
- Compliance with robots.txt policies for polite crawling behavior
- Concurrent crawling using Go’s goroutines for efficient performance
- Configurable logging for monitoring crawler activity
- Extensible architecture with hooks for customizing crawl behavior