Monthly Archives: January 2026

curl CDN diagnostics | HTTP headers, caching, TLS | CDNsun
29 Jan 2026
Comprehensive Diagnostic Methodologies for Global Content Delivery Networks via the curl Command-Line Utility Modern CDNs hide enormous complexity behind clean, fast responses. Anycast routing, TLS termination, cache layers and security policies can all fail in subtle ways. In this article we focus on using curl as a transparent, protocol-level diagnostic tool that lets engineers at CDNsun customers and beyond observe, test and optimize end-to-end CDN delivery with surgical precision. Transparent HTTP/S Diagnostics for CDN Routing and Caching At the heart of CDN [...]
TLD DNS latency | Reduce CDN TTFB, boost Core Web Vitals
26 Jan 2026
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 [...]
Low-Latency HLS with CDN | 2–3s Live Streams Guide | CDNsun
21 Jan 2026
The Ultimate Guide to Low-Latency HLS with CDN: From Theory to Production Live streaming for sports, betting, gaming and auctions demands delays under a few seconds. Traditional HLS cannot keep up, often adding 20–30 seconds of lag. Low-Latency HLS (LL-HLS) closes this gap to around 2–3 seconds while still leveraging global CDN infrastructure. This guide explains how LL-HLS works and how to implement it end‑to‑end with a CDN. Low-Latency HLS Fundamentals: Why CDNs Matter Standard HLS was designed for reliability and large‑scale [...]
7 Best CDN for Live Streaming [2026 Performance Guide]
19 Jan 2026
Live streaming has exploded from a niche technology to a fundamental business tool. Microsoft Teams alone saw daily active users surge from 20 million in 2019, while monthly active users reached over 280 million by 2023. Twitch viewers watched over 1.35 trillion minutes of content in 2022. Yet despite this growth, delivering high-quality live streams remains technically challenging. Studies have shown the critical importance of streaming quality: each 1% increase in buffering correlates with a 3-minute reduction in viewing time. [...]
7 Best CDN Services To Improve Website Speed In 2026
16 Jan 2026
In today's digital landscape, website speed isn't just a nice-to-have: it's a business imperative. Google reports that 53% of mobile site visitors leave a page that takes longer than three seconds to load. Studies have shown that a one-second delay in page response can result in a 7% reduction in conversions. This is where Content Delivery Networks (CDNs) become essential. By caching your content on servers around the world and delivering it from locations closest to your users, CDNs can [...]
6 Best Video CDN Platforms: Streaming Solutions in 2026
13 Jan 2026
Video streaming has exploded from a nice-to-have feature to a fundamental business requirement. According to Cisco's Visual Networking Index, IP video traffic was projected to reach 82% of all internet traffic by 2022, while streaming platforms now collectively serve over 3 billion users globally. Yet for every success story, countless organizations struggle with buffering videos, regional performance issues, and astronomical bandwidth costs that can sink a streaming project before it gains traction. This is where a video CDN becomes essential.   A video [...]