Category: DNS Disruptions

Monitoring the performance of DNS is essential for ensuring reliable and efficient internet service delivery. As the foundational layer of how users and devices locate services online, DNS must operate with high availability and minimal latency. However, because DNS typically functions in the background, its performance is often overlooked until a disruption occurs. Proactively tracking…

A failed DNS lookup is a common but disruptive issue that can prevent users and applications from accessing websites, cloud services, APIs, or any internet-connected resource. When a DNS lookup fails, it means that the system attempting to resolve a domain name into an IP address was unsuccessful, effectively halting communication before it even begins.…

The Domain Name System, or DNS, functions as the backbone of the internet’s naming architecture, enabling users to access websites and online services through human-readable domain names instead of numerical IP addresses. Within this system, two critical components often mentioned are the DNS server and the DNS resolver. While they both play essential roles in…

DNS cache poisoning, also known as DNS spoofing, is a technique that attackers use to corrupt the cache of a DNS resolver with false information, redirecting users to malicious or unintended destinations without their knowledge. This type of attack compromises the foundational trust model of the Domain Name System, which assumes that responses to DNS…

DNS load testing is a critical yet often overlooked component of performance engineering, particularly for organizations that depend on high availability and global reach. As DNS sits at the very front of every user interaction with a web service, its ability to handle large volumes of traffic under pressure directly impacts the performance, reliability, and…

The Domain Name System, or DNS, is one of the fundamental components of how the internet functions, yet it remains largely invisible to most users. It operates quietly in the background, translating the human-friendly web addresses we type into our browsers into the numeric IP addresses that computers use to identify each other on a…