impacted less than 1 percent of English queries. Update 2.1 – October 2013: Google confirmed a data refresh happened. About 1 percent of searches were noticeably affected. Update 2.0 – May 2013: Google's Matt Cutts confirmed on “This Week in Google” that a company employee list significant update took place and impacted 2.3% of English queries. Update of English searches were impacted. Update 1.0 – April 2012: Google announced on its Inside Search and Webmaster Central blogs that the Penguin update was launched and designed to catch spammers and those going against publisher guidelines. The update would impact about 3% of search queries. How to Watch for Google Algorithm Changes With the exception of recent broad core updates, Google rarely company employee list announces its algorithm updates. And when it does, it is usually only after others discover them. With so many tweaks going on daily, it is possible that Google doesn't know that some changes will be significant enough to mention. Often the first indication you have is your own website. If your search traffic suddenly jumps or dives, chances are good that Google made an algo update that affected your search rankings. Where can you go for company employee list information when your online world gets rocked? Here's what I recommend …Have a “seismograph” in place on your website. To detect search traffic fluctuations on your own website, you need analytics software. If you haven't already, install Google Analytics and Google Search Console on your website.