For almost two years (707 days, to be precise), one question has dominated the seo conversation: “when will google update penguin?” friday, we finally got the answer. Google announced that a penguin update is rolling out and that penguin is now operating in real-time.
September has been a very volatile month for the serps (more on that later in the post), but here’s what we’re seeing in mozcast for the past two weeks, including last night:

At 113°f, september 27th was the 2nd-hottest day

Mozcast history, and we’ve seen a steady ramp-up Building Construction, General Contractors Email List since google’s announcement on september 23. Google has suggested that the impact of penguin 4.0 could take time, as they re-crawl the entire web, especially deep links. I was initially skeptical of this idea, but the data suggest that this may be exactly what is happening. We’ll know more over the coming days.

What happened in september?

September has been the most volatile DW Leads month for serps since I started tracking temperatures in april of 2012 (just a couple of weeks before penguin 1.0). To the best of my knowledge at this time, the volatility during early-to-mid september was not due to the penguin 4.0 roll-out.

There are no official statements (currently) about other updates, but we’re aware of two things. First, many local seos saw major shifts around september 1st, when mozcast tracked a high of 108°f.