DNS (Domain Name System)

The Domain Name System (DNS) is the foundational protocol of the internet that translates human-readable domain names (like website.com) into the machine-readable IP addresses (like 192.0.2.1) required to locate servers. In technical SEO, DNS configuration directly impacts site speed and crawlability. If a domain’s DNS resolution is slow or improperly configured, it delays the Time to First Byte (TTFB), devastating Core Web Vitals and causing search engine bots to abandon the crawl. Utilizing a premium, globally distributed DNS provider is a non-negotiable infrastructure requirement for maximizing server response times and organic visibility.

DNS (Domain Name System) Simplified

DNS is the internet’s phonebook. When you type a website name into your browser, DNS instantly looks up the exact computer server where that website lives. If your DNS is slow, your website will be slow, and Google will penalize your rankings.