We know that SEO might sound like a difficult term but it's not that difficult to understand either.
On-page SEO is the practice of optimizing individual web pages in order to rank higher and earn more relevant traffic in search engines. On-page refers to both the content and HTML source code of a page that can be optimized, as opposed to Off-page SEO which refers to links and other external signals.
Here is a checklist of what we follow while doing On-page SEO.
To make things easier, see the image below. We basically optimize all your pages by following these guidelines.