Evolution of google and introduction to SEO

Search Engine Optimization

Search engine optimization (SEO) is the process of affecting the visibility of a website or a web page in a web search engine’s organic results. SEO is mainly focused on the three important aspects that are, crawling, caching and indexing.While searching any information in the search engine using a particular keyword, the search engine spider/bot find any meaningful information on any page related to that keyword this process is termed as crawling. Caching is the process where copies of web pages stored temporarily to show the people. Indexing means the information searched by many people and find it useful then google stored it permanently in the databases.

History of Google

Google has now become one of the most profitable companies in the world. Google was found in 1996 by Larry page and Sergey brin while they were Ph.D. students at Stanford University California as their academic research project. First, the name of their search engine was backrub. Later in 1997 google.com was officially registered. Later in years google became the most prominent search engine because of their trust value among people.

Google uses a special software to identify the contents of the web pages called crawler. The crawled or fetched data is temporarily stored to show the people is called caching. The cached data is indexed and stored permanently in the databases by google.

Google introduced a technique called page ranking which decides the ranking of the web pages or websites. The name page rank is obtained from one of the founders of google larry page. Page ranking becomes an important aspect in the ranking of web pages. According to quality, google gave ranks for each page in the websites. Google display the web pages which got highest ranking in the search results. The highest ranked web pages will be shown in the top position.

Earlier, google had some mechanisms to rank the web pages. One of the mechanism was niche specific. Niche specific means content specific. More keywords are used in this mechanism. Page rank is also based on the quality of web pages. While using more keywords the quality of the web pages become less.Some of them misuse this mechanism by the use of keyword stuffing. Adding more keywords without considering the quality of the web pages. Keyword stuffing is considered as a black hat or non-ethical SEO practice. Due to the misuse google introduced another mechanism known as link specific. This mechanism depends on the number of links get from other websites. So people began to buy links from other websites. It led a big threat to google. Then google introduced another mechanism called quality link specific. In this mechanism, google considers more quality links. When a website gave a link to another site, its page rank will be decreased automatically. This is called passing the link juice. Ie, the power or equity is passed to a site via links from external or internal sources.

In 2003, google introduced an online advertising service called Google AdWords, where advertisers pay to display brief advertising copy to web users. Google developed another service called AdSense program. Adsense is the most powerful program by google. This program is based on pay per click (PPC) or cost per click (CPC). Google get profit by clicking advertisements.

In 2009, google made user interaction more easily. They introduce suggestions in keywords. Depending upon user response google degrade the ranking of websites. If a user leaves a website from the homepage without interacting the page contents. This will result in bounce rate. Bounce rate is the percentage of single stage session. When a user leaves from the homepage of a website within seconds and clicks another website for results, it will result in pogo sticking. Google will notice it and penalize the web page. Revisit and regular visit are the important factors for improving the page ranking. In 2010, social media like facebook and twitter activities increases. Social media authority value increases the ranking of web pages.

Google Updations

Panda Update

In 2011, google developed a web spam team to deliver quality search results. Google made some updations in their algorithms. Google panda was the first update. This update was against content spamming. It includes fewer quality contents, contents with spelling and grammatical mistakes, copy, and paste contents, keyword stuffing etc. In 2014, the last update panda 4.0 released, as a result, google removes lots of content spamming webpages.

 Other Updates

In 2012, google launched the penguin update. This update was against link spamming. It includes link exchange, buying and selling of links, link farming, wiki spamming, guest blogging etc. In 2013, google released the hummingbird update. This update is based on semantic search results. ie, maximum accepted fact by the viewers increase the page ranking. In October 2015, the advanced version of the hummingbird with the inclusion of artificial intelligence was introduced ie, RankBrain.

In July 2014, google introduced another update called pigeon. It is regarding local SEO. This update makes google more user-friendly. Local audience visibility, geotagging etc are introduced in this update. As a result, relevant search results are provided.

Mobilegeddon

In April 2015, google released an update named mobilegeddon. This update is a mobile friendly ranking algorithm that gives web pages in mobile search. If the web pages are not mobile friendly google will terminate the web pages. Mobile friendly web pages can read the text without zoom and tap.

Sojan Babu