In today’s digital world, Domain Name System (DNS) plays a pivotal role in connecting users to websites, services, and online resources. A robust DNS infrastructure is critical for businesses to ensure seamless online operations, high performance, and protection against potential attacks. DNS monitoring is essential to maintain the health, speed, and security of DNS services. In this guide, we will explore DNS, DNS monitoring, its importance, key metrics to monitor, common DNS issues, and how DNS monitoring integrates with other types of system checks, like cron-job and uptime monitoring.
DNS – Explained
The Domain Name System (DNS) is a hierarchical naming system that translates human-readable domain names (like www.example.com) into machine-readable IP addresses (like 192.168.1.1). When users type a URL into their browser, DNS servers are responsible for resolving that URL into the appropriate IP address, enabling computers to connect to the desired website or service.