I normally use REHL-based Linux distros, so I’m going to link to those instructions. (These rules were partially adapted from this list) If you want to be really nice to the server, put your e-mail address in the scraper’s HTTP headers so the server admin can contact you if your scraper is giving them a problem. If you don’t need images, modify your scraper so it doesn’t download images (PhantomJS has a -load-images=false flag for this). Scraping bots can navigate webpages much faster than normal humans, and you don’t want to accidentally DOS a site with an out of control scraper. This means respecting robots.txt and any other restrictions there may be. Make sure you’re following the target site’s Terms of Service.Web scraping is a lot of fun, but make sure you are following the commonly accepted rules of web scraping: Sometimes though, you want to test a target web page from a variety of different IP addresses, or find yourself behind a block of banned IP addresses, or just need to anonymize your activity. This is a great tool for doing web scraping, which you can use to automate the retrieval of data from webpages, among other things. Over the past few months, one of my favorite tools has become CasperJS, which is a navigation and testing utility than runs on top of PhantomJS, a headless web browser.
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