http – how to improve performance


Some may argue that extracting 3 records per minute is not fast enough for an automated scraper (see my last post on Dexi multi-threaded jobs). However, you should realize that Dexi extractor robots behave like a full-blown modern browser and fetch all the resources that crawled pages load (CSS, JS, fonts, etc.).
In terms of performance, an extractor robot might not be as fast as a pure HTTP scraping script, but its advantage is the ability to extract data from dynamic websites which require running JavaScript code in order to generate a user-facing content. It will also be harder for anti-bot mechanisms to detect and block it. more…

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