DNS (Domain Name System) is the system that translates human-readable domain names, like clickmetrica.com, into the numerical IP addresses computers use to actually locate and connect to a website’s server.
While DNS itself isn’t a direct ranking factor, DNS configuration issues — such as slow DNS resolution times or misconfigured records — can meaningfully affect site speed and reliability, which do have downstream effects on user experience and rankings.
DNS settings are also central to domain migrations, email deliverability, and CDN configuration, making a basic understanding of DNS important for anyone managing technical aspects of a website.
DNS health is checked as part of our comprehensive Technical SEO service.