When it comes to extracting data from the web, data quality is your #1 priority. Without a consistent and high-quality output of web data from your spiders, your web scraping projects are of little value and can even be detrimental to your business if they are consuming resources without delivering meaningful results.

In this guide, we’re going to talk about data quality assurance for web scrapers, and give you a sneak peek into some of the tools and techniques Zyte (formerly Scrapinghub) has developed to ensure we can deliver our client's data with 99% accuracy and coverage.