About 124 South Main CDN

A fast, simple, no-frills image CDN that helps small sites load instantly. Making a hobby out of website design isn't your everyday occurrence. I became intrigued with the idea of a CDN in the 1990s with the notion that a web browser could simultaneously download from two addresses faster than one.

Since those early days, the CDN has evolved to monster proportions, where the CDN is not just providing a secondary source of data, but placing that data closer and closer to the end users.

How it works

I upload images to my cdn server.
I serve those images.
Visitors get smaller TTFB and consistent performance.

Example embed URL

https://124southmain.com/website-name/hero-1200.webp

Use modern formats (WebP/AVIF) where possible. Keep descriptive filenames and avoid spaces.

Testing

Zero JS: nothing blocks rendering.
Immutable caching with versioned URLs.
HTTP/2 and HTTP/3 support; strong TLS.
Origin shielding and hotlink protection (when configured).
No tracking pixels, no cookies on this site.

Image best practices

Prefer <img loading="lazy" decoding="async"> for non-critical images.
Serve width-optimized variants (e.g., 320, 640, 960, 1280) and pick the nearest size in markup.
Use alt text for accessibility and SEO.

I've written an article that delves into the various image types and the best and worst use cases.

Last updated August 17, 2025.