SEO do a vital role in website ranking

1. ALGORITHMS RUN THROUGH WEBSITE
Search Engines have many algorithms. These algorithms get updated periodically to
perform the task more effectively. Hence as a website/blog owner you need to
understand these algorithms, their updates and modify your website accordingly.
Some of the well-known algorithms are :
Humming Bird: Identifies right and meaningful content that defines the keyword,
unlike just usage of the keyword.
Mobilegeddon: Identify mobile friendly websites and give them better rankings
Panda: Stop websites with poor quality content from working their way into the
search results
Penguin: Identify websites who use link networks to boost google rankings and
disallow them.
Pigeon: Generate meaningful, useful and accurate search results that are tied to search
ranking signals.