There are several tools available to check domain authority. Here are some popular options:
Moz's Link Explorer: Moz offers a comprehensive SEO toolset, including the Link Explorer, which provides Domain Authority (DA) scores for websites. You can enter a domain into the tool to see its DA score along with other metrics.
Ahrefs: Ahrefs is another powerful SEO tool that offers domain authority metrics. In Ahrefs, you can use the Site Explorer feature to enter a domain and view its Domain Rating (DR), which is similar to Domain Authority.
Majestic: Majestic provides a metric called Trust Flow, which can be used as an indicator of domain authority. While not exactly the same as Domain Authority, Trust Flow measures the trustworthiness of a website's backlink profile, which is a crucial aspect of domain authority.
Semrush: Semrush offers a metric called Authority Score, which is their version of domain authority. You can use the Domain Overview tool to enter a domain and view its Authority Score along with other important SEO metrics.
Open Site Explorer (OSE): Open Site Explorer is a tool from Moz that provides domain authority metrics. You can enter a domain into OSE to view its Domain Authority score as well as other link-related metrics.
SmallSEOTools: SmallSEOTools offers a free Domain Authority Checker tool where you can enter a domain and quickly check its Domain Authority score.
Website Authority Checker by Prepostseo: Prepostseo provides a Website Authority Checker tool that allows you to check the Domain Authority of a website for free.
These tools typically use proprietary algorithms to calculate domain authority based on factors such as the quality and quantity of backlinks, domain age, and other SEO-related metrics. Keep in mind that domain authority is just one of many factors that contribute to a website's overall SEO performance, so it's important to consider it in conjunction with other metrics when evaluating websites for SEO purposes
