There is no doubt that the Google March 2019 Core Update that touched down on March 12th was a big one. So just like the last big core update, which we named the Medic update, from August 1st, we want to collect data and analyze that data to try to find some pattern.
Right now, all we have is speculation about this update – if we can get hundreds of responses, maybe we can find a patten to share with you.
It is important to check your analytics, Google Search Console, ranking data, etc and see how your sites were impacted on or after March 12th. That is when you may or may not see changes, negative or positive changes. That being said – please take the survey over here or below and ask your friends, colleagues, co-workers fill it out individually for each site impacted. This is exactly the same survey I posted at Search Engine Land by the way.