Which  Important factors makes ON Page Optimization better ?

Important factors of ON Page Optimization:
1. Meta Tag
2. Url
3. Sitemap
4. Robots.txt
5. Social Media link

All the SEO On-page process are all important! They focuses on such a different SEO factor!

The best on page optimization techniques are:

Keyword research
Meta tags and title
Meta description
Robots.txt file
Sitemap generation
Content development
Image optimization