Search Results for "crawling"

...Powered by Headless Chrome, the crawler provides simple APIs to crawl dynamic websites. Support both depth-first search and breadth-first search algorithm. Save screenshots for the crawling evidence, emulate devices and user agents, priority queue for crawling efficiency, obey robots.txt, and more. The static crawlers are based on simple requests to HTML files. They are generally fast, but fail scraping the contents when the HTML dynamically changes on browsers. Dynamic crawlers based on PhantomJS and Selenium work magically on such dynamic applications. ...

...The goal is to expose a few simple methods that mimic user actions (like goto, type and click), with an API that feels synchronous for each block of scripting, rather than deeply nested callbacks. It was originally designed for automating tasks across sites that don't have APIs, but is most often used for UI testing and crawling. Segment started with an open source project. Since then, we’ve open sourced hundreds of our repos. We want to continue supporting the community by publishing our code and other developers’ awesome open source projects. We use these open source projects as the foundations of our infrastructure to handle billions of API calls per day and to allow us to rapidly build and test code on the client.