But when you try web scraping on websites with greater traffic, dynamically loading pages, or even Google you might find your requests ignored, receive authorization errors such as 403, or get your IP blocked. You might not face any issues when crawling smaller or less established websites. Common mistakes when web scraping that lead to blocking Let’s run through some of the most common issues and the tried-and-tested countermeasures to avoid getting blocked while scraping. It is probably no secret to you that the key to winning this obstacle race is to make your scraping activities appear as human-like (digitally speaking) as possible. (Un)fortunately, these issues are quite common, so there are always solutions at hand – some elegant, some clunky, but never one-size-fits-all. It only comes after dodging IP-rate limiting, switching user agents, trial and error with Cloudflare, and lots of other possible roadblocks on the way to consistent and reliable web scraping. Any weathered web automation developer will confirm that extracting data is the last and easiest step of web scraping. So you thought data extraction was difficult? Well, try getting through the website’s anti-scraping protections first.
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