Has anyone involved in the most recent Zombie thread noticed transferred file sizes being much smaller than the page size?
I have not seen this. It sounds to me like you may be dealing with bots.
If this is the result of Google updating data centers, it's the longest and most destructive update I've seen yet.
Zombies have nothing to do with datacenter updates.
I'm following a zombie thread (actually threads) from early september when everything started. One day sales is great then few days (even 1-2 weeks in some cases) nothing or almost nothing. Position for most important keywords didn't changed, in some cases even improved a little.
Nothing has changed for me since that thread was closed. I operate a clean site meaning it is full ssl, mobile friendly, no dodgy links for penguin, no spam laden pages for panda and direct traffic from government, big corps and quality people. If an algorithm were to analyze quality signals, there's enough of them IMO that it would be impossible for an algorithm to think the site is anything less than good. And my ranks are good, but ranking well (organic and PPC) does not equal sales. Traffic quality took a steep dive IMO, and for this to happen it means mismatched traffic is viewing Google's SERPS organic and PPC. With PPC taking up the majority of above the fold space, I am reasonably confident that the mismatched traffic is intentionally controlled by Google. One or two days a week of good converting traffic may be enough to keep some people in the PPC game and those that depart are mere casualties and their position immediately replaced by the next bidder.
Look at the trends with other search engines and see where they are all going. More ad blockers, less people getting connected to the internet each day. increased competition from social and stock holders wanting ever increasing profits. Yahoo's Gemini comes to mind. Their paid advertising platform that includes native ad placement has a worse CTR then being linked to in pop-ups back in the day and offers an even worse ROI with my tests. Search engines overall are acting as if they are starving, and for them to feed they must take food off our tables.
As a side note, Gary Illyes would like to see Google Now replace traditional ecommerce transactions: [
seroundtable.com...] Yet another avenue to monetize another aspect of ecommerce transactions.
[edited by: mrengine at 2:36 pm (utc) on Nov 17, 2015]