Site A (No DCB)

Welcome to Site A

This page loads CSS without dictionary compression. Compare with the DCB version to see the difference.

Visit Site B →

Standard CSS Loading (No DCB)

This version demonstrates standard CSS loading without compression dictionaries:

  1. site-a.css is loaded and compressed with standard Brotli/gzip
  2. No Use-As-Dictionary headers are sent
  3. No dictionary preloading occurs
  4. When you navigate to Site B, CSS loads independently (no delta compression)
Compare: View the DCB version →

Features

🚀

Fast Loading

Compression dictionaries reduce CSS transfer size significantly.

📦

Shared Styles

Common CSS is shared between sites via dictionary compression.

🔄

Delta Updates

Only the differences need to be transferred between pages.

~70%
CSS Overlap
~80%
Brotli Reduction
2.3KB
full.css (Brotli)
2KB
site-b.css (Brotli)

What People Say

DCB technology has revolutionized how we think about CSS delivery. The bandwidth savings are incredible!

Alex Developer

Web Performance Engineer

Being able to use existing CSS as a dictionary for new resources is a game-changer for multi-site architectures.

Sam Designer

Frontend Architect

Ready to See Site B?

Navigate to Site B to compare transfer sizes with the DCB version.

Go to Site B