History Of Search Engine Optimization

History&Evolution Search Engine Optimization 

History 

Google was started by a group of college students. In the beginning, google was used for their own personal purpose. Later,Google was transformed into a company in 1998. Google work based on three process; crawling,catching and indexing. Crawling is two process of scanning the web page to get the information after taking a snapshot it is saved in the database. Then fetching the data related to the page and storing into the data base the process is catching. Finally indexing,is the process of listing the pages according to the user needs.
Their are two type of optimization techniques: on page optimization and off page optimization.

Evolution

Search engines works based on the algorithm. In the beginning, search engines were based on content specific. Keywords are provided for each webpage based on the keywords on which the search results were published. Keyword meta tag was used for keywords searching. Users misuse the keyword searching to obtain more ranking and that process is named as keyword stuffing.  There are different types of keyword stuffing that are adding keywords to blank space, background color set to the keywords and make there pixel size 1. Later keyword searching was replaced by link specific technique. Then google changes the technique from link specific to quality link specific. Page ranking technique also adopted simultaneously which shows a range of ranking from 1 to 10. Those who have more links then that website gets high rank. Finally it leads to link selling process. Then google adopt a new scheme termed as quality link specific. Twitter,us govt site,some flash player updates have only page rank 10, even the google has page rank 9. Last page rank updation was done on 2013, dec 6th. Again, there raised a problem, High page rank websites started link selling. As a result of this, google introduce a new scheme, that is passing the juice, which means when a high ranked website shares their link to others sites, their ranking will come down.  

Nofollow concept

In order to stop the passing equity from one site to another,  google introduced a new concept termed as nofollow.
rel="nofollow" is included into the hyper text link.
eg:< a href=www.softloom.com"rec="unfollow">softloom<\a> through this,the site doesn't pass their equity to other sites.

Important Google Updates

strong  google  updation was done in February 2011.

Panda Updates

panda updation was introduce on feb 2011. This updation was used to remove content spamming. There are different types of content spamming, they are content duplication, quality less content, contents with grammatical errors, spelling mistakes, content spinning, content tinny. Later google introduced different kinds of panda versions. In 2014 may 19, Google did panda 4.0 updation  and it was a great success. It was used to remove unnecessary websites and it became a permanent  filter  in their own algorithm. it was during the same time sandbox was also introduced which ensures storage of temporary data and quality less pages.

Penguin Updates

Penguin updation was introduced by the google in 2012. It's related to removal of link spamming. There are various types of link spamming, they are link exchange, link selling and link buying, comment spamming, link farming, wiki spamming, guest blogging. wiki spamming is adding link or edit anything inside the Wikipedia and guest blogging is a method used by bloggers to increase blog traffic where bloggers writes posts to be published on other's bloggers blog.

Humming bird Updates

Humming bird updation was introduced by the google in 2013. It's based on semantic search results.

Rankbrain is a new version of humming bird updation  which was introduced in 2015.

Pigeon Updates

 pigeon updation was introduced by the google in 2013. It's based on local seo.

Mobilegeddon 

Mobilegeddon updation was introduced by the google in 2015 April 21. It's based on mobile friendly update. google makes the websites more mobile friendly.

Suhana Yunes