Tag Archives: DNS

DNS Glue Records | Check Glue with dig Commands
05 Feb 2026

DNS Glue Records Explained – How to Check Glue with dig

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Glue records are one of those DNS details you only notice when they break. They sit at the boundary between the parent zone (like .com) and your domain, and they can determine whether resolvers can even reach your authoritative nameservers. In this article we explain what glue records are, when they are required, how they improve reliability, and how to check your own domain for glue with simple, practical commands. What glue records are (and the DNS “chicken and egg” [...]
TLD DNS latency | Reduce CDN TTFB, boost Core Web Vitals
26 Jan 2026

How TLD DNS latency shapes CDN TTFB and Core Web Vitals

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The DNS performance of top level domains is a hidden but decisive factor in global content delivery. Before any CDN edge or web server can respond, resolvers must traverse the DNS hierarchy and contact TLD nameservers. In this article we examine how modern TLD infrastructure, latency profiles and security features affect Time to First Byte and how to choose TLDs that support, not limit, your web performance strategy. Top level domain latency as a performance lever The DNS lookup path to [...]
CDN Traffic Steering Guide | Boost Performance & Resilience
16 Nov 2025

CDN Traffic Steering Guide DNS Anycast Layer 7 Multi CDN P2P

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Choosing the right CDN architecture is no longer just about “having a CDN.” Today, providers use very different traffic steering technologies to decide which edge server (or even which peer) will serve each request. In this article we walk through the main models—DNS-based, Anycast, application-layer steering, multi-CDN, and P2P CDNs—explaining how they work, how they differ, and where each shines.   Modern CDNs are primarily differentiated not only by their footprint or capacity, but by how they decide which edge node [...]
Multi CDN
07 Jan 2020

Multi-CDN Implementation – 5 Best Practices

A Multi-CDN implementation can offer enhanced performance, improved resiliency, and greater flexibility. However, when two or more CDNs form part of your content delivery architecture, complexity, and indirect costs increase as you need to manage various moving components that create the solution. There are, however, a few best practices that you can adopt to ensure you reap the benefits of this caching approach. By following these tips, you can lower the complexity, costs, and risks involved with coordinating and aligning multiple configurations. A Content Delivery Network (CDN) [...]