There was a lot of speculation about whether google released Pengiun on friday but according to
https://www.seroundtable.com/google-...n-3-19313.html
on Sunday Barry Schwartz got confirmation. These serps have been all over the place but the mozcast yesterday was "strangely" low for such high volatility. I have seen some ups and downs and a lot of crawling in google webmaster tools, how is every one else doing?