Search Engine Optimisation, or SEO, is the process of optimising a website to rank higher in search engine results. One important aspect of SEO is Domain Authority, which is a metric that measures the strength of a website. In this blog, we will discuss what DA is, how it is calculated, what affects it, and how to build it. We will also explore the impact it has on search engine rankings and the importance of a strong DA for your website.

What Does Domain Authority Mean?

Domain Authority (DA) is a search engine ranking score that determines a website’s value in the way of a score ranging from 1-100. The score is made up by looking at the number of backlinks pointing to the site and the quality each link is deemed to have. Having a high DA results in a heightened likelihood of rankings.

How Is It Calculated?

 To calculate Domain Authority, MOZ uses a proprietary algorithm that takes into account various factors, such as the number and quality of backlinks, the content of the website, and the overall structure of the website. AHrefs uses a similar algorithm labelled as Domain Rating, it works in exactly the same way as the MOZ system. Both examples of these can be seen below.

domain authority

domain rating

The algorithm also takes into account the relevance of the website’s content to the search query. The score is then calculated on a logarithmic scale, meaning that it is more difficult to increase your score as it gets higher.

What Affects Domain Authority?

There are several factors that affect Domain Authority, including the number and quality of backlinks, the relevance of the website’s content to the search query, and the overall structure of the website. Backlinks are particularly important for Domain Authority, as they indicate that other websites consider your website to be a credible source of information. The quality of the backlinks is also important, as links from high-authority websites will have a greater impact than links from low-authority websites.

What is a Good Score?

In general, domain authority scores lower than 10 are seen as on the low side. 10 to 20 is still fairly weak but shows some authority, between 20-30 is the sign of quality website, and between 30-50 is very good. Once your score is in the 50+ range, then you’ll be highly likely to get high rankings once your on-page elements are aligned properly and well optimised.

How to Build Domain Authority

To build your DA, there are several things you can do. One of the most important is to create high-quality content that is relevant to your target audience. This will make it more likely that other websites will link to your content, increasing your Domain Authority. Additionally, you can reach out to other websites and ask them to link to your content. This can be done through guest blogging or through link-building campaigns.

Impact on Search Engine Rankings

The impact of Domain Authority on search engine rankings is significant. Websites with higher scores are more likely to rank higher on SERPs, as they are considered to be more credible and relevant sources of information. This is why it’s so important to focus on building your Domain Authority if you want to improve your search engine rankings.

At TIDAL, we understand the importance of Domain Authority and can help you to improve your score and search engine rankings. Our team of experts can help you to create high-quality content, build backlinks, and optimize your website for search engines. Whether you’re just starting out or looking to improve your existing website, we can help you to achieve your goals. Contact us at or visit our website at to learn more about our SEO services.

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