On page Techniques:-
Page Titles.
Meta Descriptions.
Meta Tags.
URL Structure.
Body Tags (H1, H2, H3, H4, etc.)
Keyword Density.
Image SEO.
Internal Linking.

On-page is first part of SEO.
Website domain name
website design or structure
meta
keyword
content
social services on page
analytics
webmaster
sitemap
and etc...

On-page is first part of SEO.
Website domain name
website design or structure
meta
keyword
content
social services on page
analytics
webmaster
sitemap

if you type “on-page SEO” into Google, Moz will tell you—through a featured snippet—it is “the practice of optimizing individual web pages to rank higher and earn more relevant traffic in search engines.

In search engine optimization, on-page optimization refers to factors that have an effect on your Web site or Web page listing in natural search results. These factors are controlled by you or by coding on your page. Examples of on-page optimization include actual HTML code, meta tags, keyword placement and keyword density.