What is Domain Authority and why buy DAlinks with high DA?

Domain Authority is a score (on a 100-point scale) developed by Moz that PRedicts how well a website will rank on search engines. Use Domain Authority when comparing one site to another or tracking the “strength” of your website over time.

To determine Domain Authority, we employ machine learning against Google’s algorithm to best model how search engine results are generated. Over 40 signals are included in this calculation. This means your website’s Domain Authority score will often fluxuate.

MOz score Domain Authority on a 100-point, logarithmic scale. Thus, it’s easier to grow your score from 20 to 30 than it would be to grow from 70 to 80.

Domain Authority is Moz’s calculated metric for how well a given domain is likely to rank in Google’s search results. It is based off data from the Mozscape web index and includes link counts, MozRank and MozTrust scores, and dozens of other factors. It uses a machine learning model to PRedictively find an algorithm that best correlates with rankings across thousands of search results that we PRedict against.

You can measure Domain Authority using Open Site Explorer or the MozBar. Moz’s free SEO toolbar.