What affects your SEO ranking?

According to my experience quality backlinks and social media sharing effects SEO ranking so much.

Page Speed (Including Mobile Page Speed) Page speed has been cited as one of the leading SEO ranking factors for years. Google wants to improve users' experience of the web, and fast-loading web pages will do that. ... But the best idea is to start using Google Search Console (if you're not already).

- Content
- Design
- Backlinks