What factors are Google rankings based on?

Check the infographic below to learn about most of the Google ranking factors – the factors taken into account by Google when ranking web pages.

The list is split into the following categories:

• Domain Factors
• Page-Level Factors
• Site-Level Factors
• Backlink Factors
• User Interaction
• Special Algorithm Rules
• Social Signals
• Brand Signals
• On-Site Webspam Factors
• Off Page Webspam Factors

Google’s 200 Ranking Factors – from antropy.co.uk

Source: http://www.antropy.co.uk/blog/google-s-200-ranking-factors/