What things come under Onpage Optimization?

What things come under Onpage Optimization?

Factors for Onpage optimization are:
Title tag
URL
Content of page
Image alt text
Meta Tags
Meta Descriptions

Others are
Keyword Density
Internal Linking
Body Tags (H1, H2, H3, H4, etc.)

On-Page SEO techniques
- alt and title for images
- meta tags
- sitemap and robots.txt files
- Checking mobile responsiveness
- site speed
- maintaining keyword density
- URL structure
- content validation
- broken links checking

On page SEO techniques are:- Page Title, Meta tags, Alt tags, Robot.txt files, XML sitemaps, quality and unique content, keyword research.