Google has confirmed that they ran a refresh to the Google Panda algorithm on Wednesday, November 21st. Panda Update 22, Nov. 21, 2012 (0.8% of English queries were affected; 0.4% worldwide; confirmed, not announced)

Google is reqularly makes the updates to thier algorithms panda and penguin.And whenever it make the changes mostly SEO work is gone in vain.

Oh really?!?! Do you have a link to where you heard the news?

Our traffic dramatically changed on November 21st but I couldn't find anything related to a Panda or Penguin update. I searched everywhere!

I noticed that, on the same day, the number of 404 pages detected by Google Webmaster Tools soared, so I chalked it up to that as being the problem.

Thanks for the status update! This actually changes a lot for me :)

This update did not impact highly it seems.

It impacted us a good amount!

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