SEO moz conducted a survey of leading SEOs to determine what these SEOs thought were the most important ranking factors. Here is a high-level summary of the analyzing factors categorized into 3 category:

- Positive Analyzing Ranking Factors:

Keyword use in title tag

Anchor text of inbound link

Global link authority of site

Age of site

Link popularity within the site’s internal link structure

Topical relevance of inbound links

Link popularity of site in topical community

Keyword use in body text

Global link popularity of sites that link to the site

- Negative Analyzing Ranking Factors:

Malware Being Hosted on site

Cloaking

Pages on the site that sell links.

Promoting the sale of paid links.

Other Analyzing Ranking Factors:

Rate of acquisition of links

User Data

Usage Data

Google Sandbox