A WebmasterWorld thread has reports from SEOs targeting Google UK saying that there are some significant ups and downs in the rankings for certain sites over the past week or so.
The first report came on June 9th, last Thursday but it has then went silent for a few days. The SEO said:
Hi, a lot of my sites jumped back up on Tuesday, sites that were buried down a dozen or so pages appeared back on the first page, my other sites that were ranking on page 1 or 2 have not moved up any further, just the low ranking sites have moved up.
Then over the last day or two, many other UK SEOs have been talking about ranking fluctuations in the UK search results. Sites are losing their number one page listings and then getting them back and losing them again.
One SEO added:
Google has been erratic over the last 7 days, we are seeing lots of foreign traffic (again)which is the tell tale sign. We also see a lack of Google shopping results for lots of terms that used to rank well.
I am not sure if there is an update brewing specifically in Google UK or if something weird and buggy is going on.
Forum discussion at WebmasterWorld.
