Domain Authority

Domain Authority (DA) is a type of search engine ranking score system designed by Moz.

Domain Authority is a secret algorithm that predicts how your website is going to rank in the search engine results page (SERP).

Moz’s Domain Authority score is a metric that is based entirely on their own understanding of which ranking signals are important. Domain Authority is NOT a metric that Google factor into the equation when determining the SERP. 

What is Domain Authority?

Domain Authority (DA) a type of search engine ranking score system designed by Moz. Domain Authority is a secret algorithm that predicts how your website is going to rank in the search engine results page (SERP). DA works by taking into account certain ranking signals it thinks Google takes into account, when it ranks websites. 

Moz’s Domain Authority score is a metric that is based entirely on their own understanding of which ranking signals are important. Domain Authority is NOT a metric that Google factor into the equation when determining the SERP. 

Domain Authority gives websites a score from 1-100. This score correlates with how highly a website is likely to rank. 100 is the highest score a website can achieve.

How is Domain Authority calculated?

Your Domain Authority score is calculated by the algorithm taking into account multiple factors (over 40), including the total number of backlinks to your website, as well as linking root domains and presenting you with an overall score. The exact calculation, like Google’s algorithm, remains a secret. 

Why is Domain Authority important?

Domain Authority is important because, whilst it doesn’t factor in Google’s SERP, it does give you a way to gauge how your site is performing, comparative to other websites in your niche. 

Your DA allows you to see how the search engines view your site, giving you a guide as to where you need to do more SEO work. 

What is a good Domain Authority?

Because a Domain Authority score bears absolutely NO relevance to where you rank on the search engine’s results page, there is no definition of what a ‘good’ Domain Authority score is. 

High authority sites such as Wikipedia have high Domain Authority scores, whereas smaller sites, one with fewer inbound links, will have a much lower Domain Authority score. And websites that are brand new will start with a Domain Authority of just one. 

Side note – it is easier to build your Domain Authority score when your site has a score of say 20 or 30, than it is to improve on a Domain Authority score of 70+. 

However, you shouldn’t get wrapped around the axle trying to better your Domain Authority score, because your score is only a predictor of where you will rank, not an exact placement. Essentially, don’t make improving your Domain Authority score your main priority when it comes to your SEO efforts.

How to find out a website’s Domain Authority

You can find out your website’s Domain Authority score, or the DA score of any website, by utilising Moz’s free SEO toolbar – MozBar

Does Google use Domain Authority?

Google have confirmed that they DO NOT use a Domain Authority ranking signal when ranking websites. 

Domain Authority (Moz’s score) and the phrase domain authority should not be confused. Google do take into account ‘domain authority’ when ranking a website – ie the age of a website and the number of relevant backlinks it has accrued. Not the Domain Authority. Basically if a site demonstrates authority over its competitors, then it will rank more highly than them.

How to increase my Domain Authority

Because a Domain Authority score plays NO part in Google’s SERP, increasing your score should not be a priority when conducting SEO activities. The best thing you can do is find out the Domain Authority score of your competitors and try to raise yours by upping your SEO activities, so that you beat theirs. 

When Google is ranking websites in the SERP, a combination of many different factors (over 200) are taken into account. Moz’s Domain Authority has tried to replicate taking into account all of the factors (well 40 of them at least) that Google does, in order to decide on a website’s Domain Authority. Moz favours things such as backlinks and root domains for example. 

If you really want to increase your Domain Authority score, you should focus your efforts on increasing your link building and acquiring more links from high DA websites, that are relevant for your website. 

  • Increase the number of good links from high DA websites to yours. 
  • Remove low ranking DA websites from yours. If you aren’t sure about a link, disavow it. 

Is Domain Authority still relevant?

Domain authority is still incredibly relevant despite playing NO PART in determining your position in the SERP, because it is a comparative metric. 

Moz, like other companies that mimic a search engine ranking algorithm, have spent a lot of money trying to replicate the SERP algorithm, in order to give website owners an idea of where they stand in the rankings. As well as highlighting areas where they need to do more SEO work. 

DA is still beneficial and relevant because it provides website owners, at a glance, a guide to where their website stands currently in terms of organic visibility. Moz’s calculator also calculates a website’s page authority, for each page, as well as the whole website’s Domain Authority. 

Contact