Tìm kiếm:

What are some SEO free tools to analyse and audit websites to make SEO friendly?

Nothing new in this

I agree all your points except this, few skills like analysing skills, technical skills, programming skills, Social medial skills also required to SEO professions.

Backlinks from the sites which have highest DA and PA also considered as qaulity backlink and natural click is more preferable.

Content is heart of SEO. Content need to be unique, should impressive for readers, relevant images are used in the content, it should be keyword motivative which covers minimum number of keywords.