which On page SEO is most efficient to get more traffic on a website?
Header text, general tags and alt text optimization of images that's it.
The best on page techniques are:
Keyword research
Meta tags and title
Meta description
Robots.txt file
Sitemap generation
Content development
Image optimization
They are many more tactics are helpful for your on page SEO , In which every on page activities are important for your SEO purpose I have mention some list of techniques which is useful you
Title
Description
URL
Content
ALT Tags
Robot.txt
Sitemaps
Some On Page SEO techniques are:
Internal Linking
External Linking
Quality Content
Keyword Density