What are the top authority signals that Google uses to rank sites?

[Min George]

Google also uses authority signals to rank sites. And I believe that there exists some vital signals that are primarily used to ascertain authority by Google.

What are those indicators of authority as used by Google?

 

[Kross]

Google would always rank contents that demonstrate real world experience. A real life photo shows authority based on experience to content.

 

[Kera]

One authority that Google looks out for is the actual number of people that search for your brand name directly on search engines.