In order to write an efficient crawler, you must be smart about the content you download. When your crawler downloads an HTML page it uses bandwidth, memory and CPU, not only its own, but also of the server the resource resides on. Knowing when not to download a resource is more important than downloading one,...
If you need a simple web crawler that will scour the web for a while to download random site’s content – this code is for you. Usage: $ python tinyDirtyIffyGoodEnoughWebCrawler.py https://cnn.com Where https://cnn.com is your seed site. It could be any site that contains content and links to other sites. My colleagues described this piece of code I wrote...
We turn multiple vertical web content domains into machine-readable data feeds anyone can access at scale
