Industry experts are increasingly in agreement about the need for webmasters to take advantage of various data sources when pursuing a course of conversion-rate optimisation (CRO). And now there is hard evidence that this is often the most effective way of boosting the impact of any marketing campaign.

The debate over Google’s most recent algorithm update is continuing to build momentum and, as WebProNews’ Chris Crum identified this week, now focuses on whether or not negative SEO tactics have been given a boost in the aftermath.