Has there been a 'Panda' update in the UK?

[KnutDSvendsen]

My site in the UK suddenly dropped from page 1 and out of top 50 for all KWs using 'recliner' or a derivative. We are a recliner manufacturer and have gained rank over 15 years, and of course using all white hat tactics. Did Google make an algo update in the Uk last week?

[KnutDSvendsen]

Sharp drop in rank on key terms on that date. 40% drop in non-brand terms overnight. Much of it has come back since January, but we still have a yo-yo effect with 40+ of my key terms going up or down weekly.

[DougRoberts]

How did you determine that? Did you see a drop in search traffic on that date?

[KnutDSvendsen]

Going back in GA, I see that the changes happened January 9.

[DougRoberts]

I've seen some changes this morning with some of my keywords particularly ones I wasn't ranking that strongly for in the first place.  Many have experienced a considerable drop (20-50 positions) although my main (generic) brand keyword has gained a place. Looks like I've experienced some PR changes too (mainly positive +1)

[KnutDSvendsen]

Primary, brand KWs have not changed. Primarily anything 'recliner,' while sofas, my other main product group, is 50/50 in terms of KWs going up an down in rank. What I have not seen before on this domain is the blanket downgrade of all my top non-brand KWs from page 1 to page 5.

[TomBarker82]

Possibly I have seen a drop in my rankings over the weekend, is the drop on all keywords or primary keywords? The one you have been link building the most on.