Although it is hard to predict when an algorithm will happen, Google has been transparent about when the roll out period lasts: 1 to 2 weeks. After these 2 weeks it is the time for deeper analysis, not just checking trend lines. Based on STAT’s Competitive Landscape we can understand SERP volatility and gain insights into the content of a Core Algorithm Update: 

• Visibility within the general space of keyword set
• Changes in visibility to your website
• Changes in visibility to Google

A helpful tool is to use Search Analytics for Sheets, which is a Google Sheets add-on that allows you to request and backup data from Webmaster Tools. This acts as an enhanced Google Search Console. Segment multiple data points (date, query, page, etc.) to get a much higher level of granularity than can be achieved on Search Console’s standard web frontend. With this tool you can discover if:

• Have you been positively or negatively impacted by the core update?
• Average daily clicks appear to be at a higher or lower level
• Average daily impressions appear to be at a higher or lower level
• Average ranking positions appear to have improved or not 

While there are other factors such as other Google updates, day of the week, website migrations, technical website changes, etc., the above will be is a great place to start for website owners to discover if their website affected. 

Still have trouble analyzing the data? We can help you by consultation and help you determine the next steps to take. Call 248.528.3600.