Ahrefs has developed the Domain Rating (DR), an indicator developed to gauge the strength and authority of backlink profiles in websites. While not an essential metric in measuring website performance, its significance cannot be discounted given various reasons.

1. Search Engine Rankings: Google and other search engines like Bing use backlinks as one of their key ranking indicators, viewing votes of trust from authoritative and high-quality websites as an indication that they believe your website deserves higher search engine results pages (SERPs) rankings. Conversely, websites with greater domain authority (DA) tend to receive greater rankings on SERP results pages (SERPs).
2. Competitive Analysis:  Competitive analysis can be an excellent way of gauging the credibility of various websites. By studying their DRs and gathering insights on their backlink profile, Competitive analysis allows you to see where improvement could occur within your own credibility profile.
3. Link Building: Domain Rating (DR) can serve as an indicator for planning link-building campaigns. Typically websites with greater DR are more appealing for backlinking due to their authority, which in turn increases your own domain’s DR score.
4. Partnerships and Collaborations: If you are searching for partnerships or collaborations with other influencers or websites, an increased domain authority (DA) rating can help establish credibility for your site and can become an essential ally in terms of SEO as well as online visibility.