SEO Tutorial, Part-11 | Google Algorithm Change History

SEO Tutorial - Google Algorithm Change History

Dear friends, in this SEO Tutorial, I shall discuss about the Google algorithm updates with date. We have known the specific three algorithms in the previous SEO Tutorials such as Panda, Penguin and Hummingbird. Let’s see this SEO Tutorial about all the updates with date and influence.

Every year, Google changes its search algorithm around 500–600 times. While most of these types of changes are minor, Google occasionally rolls out a "major" algorithmic update that affects search results significantly. For SEO professionals, knowing the dates of these Google updates can help explain changes in rankings and organic website visitors and ultimately improve search engine optimization. Below, I’ve listed some major algorithmic changes which have had the biggest impact on search.

Panda 1.0 (Update 1) /Farmer — February 23, 2011 (first launched) (11.8% of queries; announced; English in US only)

Panda 2.0 (Update 2) — April 11, 2011 (2% of queries; announced; rolled out in English internationally)

Panda 2.1 (Update 3) — May 9, 2011 (no change given; confirmed, not announced)

Panda 2.2 (Update 4) — June 16, 2011 (no change given; confirmed, not announced)

Panda 2.3 (Update 5) — July 23, 2011 (no change given; confirmed, not announced)

Panda 2.4 (Update 6) — August 12, 2011 (6–9% of queries in many non-English languages; announced)

Panda 2.5 (Update 7) — September 28, 2011 (no change given; confirmed, not announced)

Panda "Flux" (Update 8) — October 5, 2011 (about 2% of queries; belatedly confirmed)

Panda 3.1 (Update 9) — November 18, 2011 (less than 1% of queries; announced)

Panda 3.2 (Update 10) — January 18, 2012 (no change given; confirmed, not announced)

Panda 3.3 (Update 11) — February 27, 2012 (no change given; announced)

Panda 3.4 (Update 12) — March 23, 2012 (about 1.6% of queries impacted; announced)

Panda 3.5 (Update 13) — April 19, 2012 (no change given; belatedly revealed)

Penguin (Update 1) — April 24, 2012 (first launched)

Panda 3.6 (Update14) — April 27, 2012 (no change given; confirmed; first update within days of another)

Penguin 1.1 (Update2) — May 25, 2012

Panda 3.7 (Update15) — June 8, 2012 (1% of queries; belatedly announced)

Panda 3.8 (Update16) — June 25, 2012 (about 1% of queries; announced)

Panda 3.9 (Update17) — July 24, 2012 (about 1% of queries; announced)

Panda 3.9.1 (Update18) — August 20, 2012 (about 1% of queries; belatedly announced)

Panda 3.9.2 (Update19) — September 18, 2012 (less than 0.7% of queries; announced)

Panda (Update 20) — September 27, 2012 (2.4% English queries, impacted, belatedly announced

Penguin (Update 3) — October 5, 2012

Panda (Update 21) — November 5, 2012 (1.1% of English-language queries in US; 0.4% worldwide; confirmed, not announced)

Panda (Update 22) — November 21, 2012 (0.8% of English queries were affected; confirmed, not announced)

Panda (Update 23) — December 21, 2012 (1.3% of English queries were affected; confirmed, announced)

Panda (Update 24) — January 22, 2013 (1.2% of English queries were affected; confirmed, announced)

Panda (Update 25) — March 14, 2013 (confirmed as coming; not confirmed as having happened)

Penguin 2.0 (Update 4) — May 22, 2013

Panda Recovery (Update 26) — July 18, 2013 (confirmed, announced)

Hummingbird (New) — August 20, 2013 (first launched)

Penguin 2.1 (Update 5) — October 4, 2013

Panda 4.0 (Update 27) — May 19, 2014 (7.5% of English queries were affected; confirmed, announced)

Panda 4.1 (Update 28) — September 23, 2014 (3–5% of queries were affected; confirmed, announced)

Penguin 3.0 (Update 6) — October 17, 2014

Panda 4.2 (Update 29) — July 18, 2015 (2–3% of queries were affected; confirmed, announced)

Rank Brain — October 26, 2015

Dear friends, today’s SEO Tutorial is ending here. I shall come tomorrow with the new topic. Thanks all.