Most important factors are Quality Content
 

The most important factors are Quality Content and User Experience

Your content should be unique and the minimum length should be 1000 words.
Google gives priority to the mobile responsive website, which means your website should be mobile responsive.
Use keywords in Alt Tags, H1 and H2 Tags

And add one things on that always write for people not for search engine .

Great content is an important asset. It has the ability to create positive experiences for your potential customers