Google algorithm

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google algorithm and update for seo
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Google algorithm

• Panda
• Penguin
• Hummingbird
• Pigeon
• Mobile
• Rank Brain
• Possum
• Fred

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Panda

• February 24, 2011
• Duplicate
• plagiarized or thin content
• user-generated spam
• keyword stuffing

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Penguin

• April 24, 2012
• Spammy or irrelevant links
• links with over-optimized
• anchor text

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Hummingbird

• August 22, 2013
• Keyword stuffing
• low-quality content

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Pigeon

• July 24, 2014 (US)
• December 22, 2014
• (UK, Canada, Australia)
• Poor on- and off-page SEO

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Mobile

• April 21, 2015
• Lack of a mobile
• version of the page
• poor mobile usability

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RankBrain

• October 26, 2015
• Lack of query-specific
• relevance features
• shallow content
• poor UX

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Possum

• September 1, 2016
• Tense competition in
• your target location

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Fred

• March 8, 2017
• Thin,
• affiliate-heavy
• or
• ad-centered content