Webmaster chatter suggested that Google rolled out yet another update. It was unclear whether new factors were introduced, or this was simply an update to the Panda data and ranking factors. Google rolled Panda out internationally, both for English-language queries globally and non-English queries except for Chinese, Japanese, and Korean. Google reported that this impacted 6-9% of queries in affected countries.

Google News – Great news site automatically generated using the results of news sites queried by Google. Google Home – Voice activated virtual digital assistant that assists users with questions. Google Groups – Google’s bulletin board with millions of users and postings. Google Classroom – Google service that allows students and teachers to participate in a digital class. Google Books – Another fantastic service from Google containing hundreds of thousands of books that can be searched. Google Analytics – Google Analytics allows users to monitor and create reports of visitors to their website.

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Some suspected Google was pushing its own internal properties, including Google Books, but the evidence of that was limited. After months of testing, Google finished rolling out the Caffeine infrastructure. Caffeine not only boosted Google’s raw speed, but integrated crawling and indexation much more tightly, resulting in a 50% fresher index. Expanding on Google Suggest, Google Instant launched, displaying search results as a query was being typed. SEOs everywhere nearly spontaneously combusted, only to realize that the impact was ultimately fairly small.

Google confirmed a “core” update on March 7th, but volatility spiked as early as March 4th, with a second spike on March 8th, and continued for almost two weeks. This may have been multiple updates or one prolonged, rolling update. The “Brackets” name was coined by Glenn Gabe; no details were provided by Google.

MozCast confirmed unusually high SERP flux from May , but it’s unclear if this was directly related to the bugs. Google pre-announced a “site diversity” update, claiming it would improve situations where sites had more than two organic listings. Moz data showed that, while the update did marginally improve SERPs with 3-5 duplicate sites on page one, the impact was relatively small. The update measured at 97°F on MozCast and seemed to impact sites affected by previous core updates. SERP trackers registered multiple days of ranking flux, with MozCast showing early signs on October 2 and peaking at 98°F on October 4. Multiple tools registered very high ranking flux for a few days (MozCast peaked at 116° on February 7th).

Starting around August 16, SEOs began to notice a substantial increase in Google rewriting page titles in SERPs. Google later confirmed this change , and, after many complaints about result quality issues, scaled back some of the changes in September. MozCast measured very high volatility, peaking at 105.0°F, just two days after recording a temperature of 101.3°F.

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