Enter any URL in the tool below to check domain authority based on backlink profile.
Postbag's SiteAuthority is a metric that indicates authority of a website relative to the rest of sites on the world wide web.
We analyze backlinks from over 500 million domains to build a backlink webgraph from which we extract SiteAuthority.
SiteAuthority is a number between 0 and 100 with 0 meaning least and 100 being most authoritative.
Yes, this is a free tool open for anyone to be used without charge. The only requirement is that the tool is being used by humans, not bots.
The only way to improve your site's domain authority is to get more natural high quality backlinks. Do you want to get a personalized linking strategy for your website? Then sign up for Postbag Academy.