In the SEO industry, we obsess on everything Google says, from John Mueller dropping a hint in a Webmaster Hangout, to the ranking data we spend £1000s to gather. Yet we ignore the data Google throws at us every day, the crawling data. For the longest time, site crawls, traffic data, and rankings have been the pillars of SEO data gathering. Log files should join them as something everyone is doing. We'll go through how to get everything set-up, look at some of the tools to make it easy and repeatable and go through the kinds of analysis you can do to get insights from the data.