This blog post is meant to show CDN Image Performance Test. In other words, this page tests the performance of various Content Delivery Networks (CDNs) for image delivery on my blog. Use it to evaluate loading speeds, caching efficiency, and overall reliability.

Note: as on June 2026, I am writing a short book on Content Delivery networks- and this blog post is a part of that project.

Below are test images and galleries served through different CDNs to compare their performance. This helps identify the best CDN for fast and reliable image delivery via gumlet. I may occasionally use droplr or pushrcdn for some images.

CDN Image Performance

My 20 years of Linux

Git charcoal sketch

Slackware Linux penguin

Listen to Audio

If you cannot listen to the audio, click here.

Slackware Linux

Text processing in Linux

Neovim editor

Helix editor

Linux directory structure

Gumlet Video CDN Test

This video is served from Gumlet Video CDN.Video quality has been intentionally kept to a lower level.

CDN Unlocked: A Beginner’s Guide to Content Delivery Networks

About This Book

The internet moves fast — and so does the content that powers it. Whether you are a startup founder trying to reduce page load times, a small business owner managing a growing media library, or simply a curious reader wanting to understand how your favourite websites deliver content so quickly, this book is for you.

CDN Unlocked: A Beginner’s Guide to Content Delivery Networks is a practical, plain-language introduction to one of the most important yet under-discussed technologies of the digital age. It traces the history of CDNs from their early origins all the way through to July 2023, covering how this universe of networks has grown, diversified, and become indispensable.

What You Will Learn

This book covers the full spectrum of CDN knowledge for non-technical readers and practitioners alike:

• What CDNs are, and why they matter for your website, app, or business
• The different types of CDNs — for images, video, audio, scripts, documents, and software downloads
• How CDN technology has evolved over the decades
• Key features to look for when evaluating a CDN
• Pricing models and how to choose the right CDN for your budget

CDN Image Performance and Book on CDN

This guide is written with three audiences in mind: consumers who want to understand the technology behind their digital experiences, startups looking to scale efficiently, and small businesses seeking to improve performance without enterprise-level complexity.

No prior technical background is required. The goal is to equip you with the knowledge to navigate the CDN landscape confidently and make informed decisions.

Dive into the world of Content Delivery Networks with CDN Unlocked. From the evolution of CDNs to their modern-day role in delivering images, video, audio, scripts, documents, and software downloads, this book demystifies an essential layer of the digital landscape. Tracing developments right up to July 2023, and focusing on what matters most to consumers, startups, and small businesses — this is your practical guide to understanding, evaluating, and leveraging CDNs with confidence.

This blog post contains cdn image performance test for a planned book with the working title CDN Unlocked: A Beginner’s Guide to Content Delivery Networks, last updated June 04, 2026.

Image Gallery Test

Note: below images might not load right away.