what is SEO and its benefits?

[Romio SEO]

SEO is used to rank your website for a determined keyword. Usually the keywords relates to your website niche.

The most common way of SEO is building backlinks that points to your website. Google which is one of the most important Search Engine on the internet rank your website depending on the quality of websites that contain a link pointing to yours. If the site that has a link pointing to yours is a quality site that will help you rank easier in Google.

Those sites that give importance to your site are called "Authority Sites"

You can buy links from those websites but is not cheap and they will only accept to add a link if they think that will benefits their audience.

Here is more info on SEO: