Google Update October 14/15th: ZOMBIE Update Or Panda Rolling?

There have been plenty of signs of updates over October with the Google algorithm. The last time we reported these shifts were on October 8th but I am seeing shifts reported on October 14th and 15th as well as the past couple days, October 17th through today.

Here is my traffic chart, showing a 15% lift in my organic Google traffic since Thursday, October 15th.

There is a huge WebmasterWorld thread with tons of chatter about what they are calling ZOMBIE Google traffic or the ZOMBIE update. The chatter is significant.

Here is a tweet showing a significant change on October 14th as well:

@rustybrick Was there an update around Oct. 14th? pic.twitter.com/RtQaqBi5to

— Cesar Bielich (@cbielich) October 19, 2015

The automated tools show changes as well. Mozcast shows a spike on October 17th, SERP Metrics shows a spike as of yesterday, so does Algoroo and a new one named Accuranker also does. Both SERPs and advancedwebranking.com are pretty stable.

Did you notice updates this past week or so?

I suspect it is a bunch of changes, both Panda continued roll out, maybe this ZOMBIE thing which has no confirmation from Google or something else.

Forum discussion at WebmasterWorld.