Evolution and History of SEO

Evolution and History of SEO

Search engine optimization (SEO) is the process of affecting the visibility of a webpage or a website.

On-page optimization

In the search engine optimization, on-page optimization refers to factors that have an effect on  Web site or Web page listing in a search results. These factors are controlled by you or by coding on your page. Examples of on-page optimization include actual HTML code, meta tags, keyword placement and keyword density.

Off-page optimization

In search engine optimization, off-page optimization refers to factors that have an effect on the Web site or Web page listing in natural search results. These factors are off-site in that they are not controlled by you or the coding on your page. Examples of off-page optimization include things such as link popularity and page rank

Search engine works based on the following steps:

•  crawling
•    catching
•   indexing

   

Crawling is the process of crawling websites to get information about that website. After taking snapshot it is saved in the database. This is done by web crawlers or spiders or robots.

Catching is fetching data related to the website and storing it in the database.

Indexing is the process of listing the fetched web pages. Web masters controls website related activities.

SEO TYPES

classified into two categories:

•          White Hat SEO

•          Black Hat SEO

White Hat SEO is the ethical practice of optimizing web pages and the Black Hat SEO is the non-ethical practice of optimizing web pages.




EVOLUTION

Search engines mainly works based on the algorithms. In olden days, search engines were used which is based on the web page contents.These contents are considered as keywords in a web page. Thus users started to practice keyword stuffing like adding too many keywords in web page in order to obtain high rank. The different types of keyword stuffing are adding keywords in blank spaces and adding many keywords and making their pixel size small, meta keyword tag which gives a brief description of web pages.

content specific algorithm was replaced by link specific algorithm by making changes in the algorithm. Those who have more links concerned to a website achieves high rank so users tried to put more links in a web page which ultimately lead to link selling. Thus google provide a quality link specific algorithms. Quality of the page defines the page rank which can be a maximum of 10. Only few websites achieved page rank 10 like  US government site etc.

Last page rank updation was done on 2013. High page rank link selling was started to practice by users so Google introduced passing juice external links that is SEO link juice which means websites with high page ranks, if giving more links to another websites then their page rank decreases automatically. Later 2016 April 10 the Google hide the page rank.

Nofollow links

  In order to stop that equity passing Google was introduced the new concept rel=”nofollow” in the links.

Eg: <a href=www.sooftloom.com rel=”nofollow”>example</a>

Google adwords  and Google adsense

Google adwords is used for adding keywords in advertisements. Pay-per-click is also called as cost per click which is defined as a method of paying website owner on each click. Google adsense used by website publishers for putting advertisements on web pages and earn money when visitors click or view the add.

GOOGLE UPDATES

•   Panda  updation

Panda  updated was done by google  in 2011 to remove content spamming. It is also known as farmer updation. The main types of content spamming are content duplication or content plagiarism, using low quality contents with grammatical errors, publishing thinny pages with less content, keyword stuffing, content spinning where paragraphs are spinned. Later 2014 the new versions of Panda was launched to remove the content duplicated websites. And  it became permanent filter in algorithm. Web pages or sites which are on threat are saved into sandbox where their ranking is at lower position.

•   Penguin updation

Penguin updation  was done by google  in 2012  is related to removal of link spamming. The various types of link spamming are link exchange, link selling, link farming, wiki spamming that is obtaining links from Wikipedia after editing that content, low quality directories, comment spamming. Guest blogging, adding links in an owners blog by a guest user is also considered as spamming.

•   Hummingbird updation

Hummingbird updation was done by google  in 2013  is mainly done based on semantic updation. The defect of this updation that can be wrong in certain cases. Rankbrain updation is the new version of Hummingbird updation with more artificial intelligence and also a risky updation. Google started to work automatically based on the users different search queries and the mobile friendly updation was done to make website responsive.

•   Pigeon updation

Pigeon updation is related to local SEO where locally serviced ones need to do local SEO to get information about site on local search

•    Pirated updation

Pirated updation is copying the data of a site into another one. According to Digital Millenium Copyright Act, we can register complaints against this copying then Google takes necessary steps for that

                                                                                                                                                 Shafas k.s