70% organic traffic drop in October?! Algorithm change?

[jfeitlinger]

I oversee content for a client and this past month there was a 70% decrease in traffic. We noticed the hit start on September 29th, and has never rebounded. Any suggestions what this could be (i..e latest Google algorithm update) and or tools I should use to look into it? Nothing is showing up as an alert on Moz analytics and need to address with my client asap.

[ColeLusby]

Hello, this sounds pretty urgent.

You can see the updates here - http://moz.com/google-algorithm-change

Google Penguin update hit sites that have poor backlinking or spam links.

Google Panda update hit thin sites (with thin content) or any duplicate content.

Moving forward: Find the problem (could be more than one). Disavow the links. Produce relevant, high quality (not high quantity) content.

[MonicaOConnor]

I would definitely look into the Panda 4.1 update that happened 9/25. Double check the content on the pages and make sure that it is all relevant.