Google All Algorithms Changes 2012
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Panda 3.8 — June 25, 2012 |
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Google rolled out another Panda data refresh, but this appeared to be data only (no algorithm changes) and had a much smaller impact than Panda 3.7 |
Panda 3.7 — June 8, 2012 |
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Google rolled out yet another Panda data update, claiming that less than 1% of queries were affect. Ranking fluctuation data suggested that the impact was substantially higher than previous Panda updates (3.5, 3.6). |
May 39-Pack — June 7, 2012 |
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Google released their monthly Search Highlights, with 39 updates in May. Major changes included Penguin improvements, better link-scheme detection, changes to title/snippet rewriting, and updates to Google News. |
Penguin 1.1 — May 25, 2012 |
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Google rolled out its first targeted data update after the "Penguin" algorithm update. This confirmed that Penguin data was being processed outside of the main search index, much like Panda data. |
Knowledge Graph — May 16, 2012 |
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In a major step toward semantic search, Google started rolling out "Knowledge Graph", a SERP-integrated display providing supplemental object about certain people, places, and things. Expect to see "knowledge panels" appear on more and more SERPs over time. Also, Danny Sullivan’s favorite Trek is ST:Voyager?!
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April 52-Pack — May 4, 2012 |
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Google published details of 52 updates in April, including changes that were tied to the "Penguin" update. Other highlights included a 15% larger "base" index, improved pagination handling, and a number of updates to sitelinks. |
Panda 3.6 — April 27, 2012 |
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Barely a week after Panda 3.5, Google rolled out yet another Panda data update. The implications of this update were unclear, and it seemed that the impact was relatively small. |
Penguin — April 24, 2012 |
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After weeks of speculation about an "Over-optimization penalty", Google finally rolled out the "Webspam Update", which was soon after dubbed "Penguin." Penguin adjusted a number of spam factors, including keyword stuffing, and impacted an estimated 3.1% of English queries.
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Panda 3.5 — April 19, 2012 |
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In the middle of a busy week for the algortihm, Google quietly rolled out a Panda data update. A mix of changes made the impact difficult to measure, but this appears to have been a fairly routine update with minimal impact. |
Parked Domain Bug — April 16, 2012 |
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After a number of webmasters reported ranking shuffles, Google confirmed that a data error had caused some domains to be mistakenly treated as parked domains (and thereby devalued). This was not an intentional algorithm change.
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March 50-Pack — April 3, 2012 |
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Google posted another batch of update highlights, covering 50 changes in March. These included confirmation of Panda 3.4, changes to anchor-text "scoring", updates to image search, and changes to how queries with local intent are interpreted. |
Panda 3.4 — March 23, 2012 |
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Google announced another Panda update, this time via Twitter as the update was rolling out. Their public statements estimated that Panda 3.4 impacted about 1.6% of search results |
Search Quality Video — March 12, 2012 |
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This wasn’t an algorithm update, but Google published a rare peek into a search quality meeting. For anyone interested in the algorithm, the video provides a lot of context to both Google’s process and their priorities. It’s also a chance to see Amit Singhal in action. |
Panda 3.3 — February 27, 2012 |
| Google rolled out another post-"flux" Panda update, which appeared to be relatively minor. This came just 3 days after the 1-year anniversary of Panda, an unprecedented lifespan for a named update. |
| Google Confirms Panda 3.3 Update (SEL) |
February 40-Pack (2) — February 27, 2012 |
| Google published a second set of "search quality highlights" at the end of the month, claiming more than 40 changes in February. Notable changes included multiple image-search updates, multiple freshness updates (including phasing out 2 old bits of the algorithm), and a Panda update. |
| Search quality highlights: 40 changes for February (Google) |
Venice — February 27, 2012 |
| As part of their monthly update, Google mentioned code-name "Venice". This local update appeared to more aggressively localize organic results and more tightly integrate local search data. The exact roll-out date was unclear. |
| Google Venice Update – New Ranking Opportunities for Local SEO (Catalyst eMarketing) |
February 17-Pack — February 3, 2012 |
| Google released another round of "search quality highlights" (17 in all). Many related to speed, freshness, and spell-checking, but one major announcement was tighter integration of Panda into the main search index. |
| 17 search quality highlights: January (Google) |
Ads Above The Fold — January 19, 2012 |
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Google updated their page layout algorithms to devalue sites with too much ad-space above the "fold". It was previously suspected that a similar factor was in play in Panda. The update had no official name, although it was referenced as "Top Heavy" by some SEOs. Page layout algorithm improvement (Google) |
Panda 3.2 — January 18, 2012 |
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Google confirmed a Panda data update, although suggested that the algorithm hadn’t changed. It was unclear how this fit into the "Panda Flux" scheme of more frequent data updates. |
Search + Your World — January 10, 2012 |
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Google announced a radical shift in personalization – aggressively pushing Google+ social data and user profiles into SERPs. Google also added a new, prominent toggle button to shut off personalization. Search, plus Your World (Google) |
January 30-Pack — January 5, 2012 |
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Google announced 30 changes over the previous month, including image search landing-page quality detection, more relevant site-links, more rich snippets, and related-query improvements. The line between an "algo update" and a "feature" got a bit more blurred. |
Algorithms-2011 Contine…… |
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