Search Engine Optimization (SEO) is about how to rank website or blog organically or by improving ranks of websites organically.

Benefits of doing SEO — 

FAST WEBSITE 
INCREASES REVENUE 
IMPROVE THE SPEED AND RELIABILITY OF YOUR WEBSITE

Latest SEO Techniques in 2020 — 

Sitemap 
Directory Submission 
Social Media 
Footer Optimization 
Anchor Linking 
Content Optimization 
Meta tags 
Keyword Research