what is scop of seo and discribe of on page seo technique?

[Earlene Gibbon]

Let's start with a bit of history, to get a better idea of how this field emerged. SEO is a fairly new field, roughly around 15-20 years old!!
Internet has grown enormously from its advent, as the reach of World Wide Web stretched so did its users. Search Engines made internet simpler for users and complicated for companies; because Search Engines made it important for every companies to be on top of the search engines results page. Till around the mid-90s, it was the job of the webmasters to optimize web sites so that they showed up high in the search engine results pages.