Link Authority

Popularity & Link Signals

Link authority is an internet measure of effect or power of a link.  

A link to a web site from a:
  • 'Free-for-all' site will have little value or low link authority
  • 'High ranking' site in the industry will have much more value or high link authority
Through link authority, search engines can not only analyze the popularity websites and pages based on the number and popularity of pages linking to them, but also networked metrics including: 
  • Trust 
  • Spam 
  • Authority
Trustworthy sites tend to link to other trusted sites, while spammy sites receive very few links from trusted sources.