DotnetSpider
Lightweight .NET framework for fast web crawling and data scraping
...DotnetSpider is modular, allowing different components such as request schedulers, downloaders, and storage systems to work together in a flexible workflow. DotnetSpider also supports distributed crawling environments, making it possible to scale data collection across multiple agents and machines. With support for various storage backends and extensible parsing mechanisms, it is suitable for building complex scraping systems or automated data gathering pipelines.