Tag Archives: HTTP3

29 Jan 2026

curl CDN diagnostics: HTTP headers, caching, TLS timing

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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 [...]

21 Jan 2026

Low Latency HLS with CDN: The Ultimate Production Guide

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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 [...]

20 Oct 2025

CDN: The Technical Backbone of Modern Live Streaming (And Why Latency is the Ultimate Challenge)

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Welcome to the CDNsun blog. As a Content Delivery Network (CDN) company specializing in high-performance delivery, we understand that modern live streaming is less about content and more about complex, distributed systems engineering. The internet's demand for real-time video has exploded, transcending simple entertainment to become critical infrastructure for commerce, education, and global events. This article dissects the role of the CDN in fulfilling these demands. It explores three technically challenging live streaming scenarios, demonstrating how the CDN architecture—with its [...]