In the earlier day, the search engine was not as powerful as it is right now. I am talking back in 90’s when the search engine was worked on the bases of Keyword Matching and links pointing to your website. That means when you target your exact keywords with tons of backlinks, there are the 100% possibilities of ranking your website.
Due to this, low-quality website starts getting ranks which produce inaccuracy on the web. So Google starts filtering the results by introducing new Google algorithm which helps to clean the web.
In this post, we have designed an infographic which contains all the history of Google algorithm change. Let me give a brief about major Google updates which help Google to make more accurate and clean web.
Google Panda Update
Google Panda is a change to Google's search results ranking algorithm that was first released in February 2011. The change aimed to lower the rank of "low-quality sites" or "thin sites", and return higher-quality sites near the top of the search results.
This major update affected 12% of searches and was the beginning of a new era in SEO. Panda is updated from time-to-time. When this happens, sites previously hit may escape, if they’ve made the right changes. Panda may also catch sites that escaped before. A refresh also means “false positives” might get released.
Google Penguin Update
Google introduced the Penguin update in April 2012, as a machine-learning algorithm to uncover spammy backlink profiles that not only devalues the impact of spammy backlinks' on rankings (as a previous Panda update did) but also penalizes websites employing low quality backlinks by de-ranking them.
Google Penguin Intended to penalize black hat webspam techniques that don't benefit site visitors, such as keyword stuffing and link schemes that attempt to manipulate SERPs, Penguin Update 1 rewards those in compliance with Google’s publisher’s guidelines.
Google Hummingbird Update
“Hummingbird” is the name of the new search platform that Google is using as of September 2013, the name comes from being “precise and fast” and is designed to better focus on the meaning behind the words.
Google Hummingbird is designed to apply the meaning technology to billions of pages from across the web, in addition to Knowledge Graph facts, which may bring back better results.
Mobile Friendly Update (MobileGeddon)
Mobilegeddon is another Google update like google panda, and Google penguin. In this Google algorithm update, non-mobile friendly website get outranked. Google start giving importance to Mobile friendly website so user can get better experience on mobile devices.
Google Algorithm Updates Infographic
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