One of my sites went from around 4k visitors per day to 2k overnight. Looking at the analytics it's like a cliff edge between April 2 and April 3.
I've been on the Search Console and there is nothing to report - no errors. The performance graph shows both impressions and clicks dropping dramatically but position and CTR remain constant.
I don't really do much in the way of overt SEO these days so I doubt it is some kind of penalty. I also don't really keep up to date with Google algo changes - unless I have a problem - but I like to think my sites are good quality and don't usually get touched.
Any ideas what might have caused this?