History And Evolution Of SEO
Whenever a question comes to our mind the first thing we think off is "Google it”. Nowadays the word "google" has become the synonym for the word "search".
“Google “company was launched in 1998 by Laury Page and Sergey Brin. It was actually a project done by them in 1996, at first known as “Back Rub" - a search algorithm. At that time Google took almost 24 hours to give the results but now we will get the results from google within fraction of seconds. Google reached this heights after lot of hardships and challenges.
One of the most important challenge it faced was when the World Trade Center got attacked in 11th September, 2001. Google was unable to provide sufficient information about the World Trade Center at that time and it became a serious drawback for google. The reason they said was during those days all the websites was not crawlable for them. So they have decided to share their optimization files with the webmasters. Thus they introduced SEO starter guide and it was a 32 page PDF file.
Google search engine was content specific when it started but keyword stuffing became a chaos for them as they couldn’t distinguish between low and high quality websites. So they changed to link specific but that too proved unsuccessful because people started buying links to attain higher rankings for their web page. Then google switched to quality link specific i.e. based on Page ranking. They also introduced a system called "passing the juice" technique which means while passing page links to other websites the ranking of that web page drops down straight away.
Search Engine Optimization(SEO)
Search engine optimization is the process of influencing the online visibility of a website or a web page in a web search engine's result. SEO in short is a set of rules that can be followed by website owners to optimize their websites for search engines to improve their rankings. In addition it is a great way to increase the quality of their website.
Working Of Search Engines
It involves 3 steps
- Crawling
- Indexing
- Caching
Crawling
Crawling is the process of scanning the particular web page.The google bot scans or crawls through the particular web page.
Indexing
After crawling the search engines categorize these web pages and store them in the particular databases.
Caching
Taking a snapshot of the web page is called caching.
SEO Techniques
- White Hat SEO
- Black Hat SEO
White Hat SEO
SEO done in an ethical way by following the search engine rules is called white hat SEO.
Black Hat SEO
Black hat SEO refers to search engine optimization done in a non-ethical way by breaking the search engine rules.It is done mainly to get higher page rankings.
Strategies in SEO
- On Page Optimization
- Off Page Optimization
On Page Optimization
Modifications or additions done on the web page as part of search engine optimization before publishing the page.
Off Page Optimization
It refers to modifications, additions or actions taken outside your website as part of SEO to improve rankings.
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