Brotli Compression Checker
Check if your website uses Brotli compression. Compare with Gzip and get optimization recommendations.
Understanding Brotli Compression
Brotli is a modern compression algorithm developed by Google that offers 15-25% better compression than Gzip. It's essential for optimal web performance and faster page loads.
01What is Brotli?
Brotli is an open-source data compression algorithm developed by Google in 2015. It uses a combination of LZ77 algorithm, Huffman coding, and 2nd order context modeling to achieve superior compression ratios, especially for text-based content like HTML, CSS, and JavaScript.
The name 'Brotli' comes from the German word for a small bread roll.
02Why Use Brotli?
Compared to Gzip, Brotli offers significantly better compression for web content. Studies show that Brotli compressed files are 14-21% smaller than Gzip equivalents. This translates directly to:
- Faster page load times
- Lower bandwidth costs
- Better Core Web Vitals scores
- Improved SEO rankings
Brotli vs Gzip: Detailed Comparison
| Metric | Brotli | Gzip |
|---|---|---|
| Compression Ratio | 15-25% better | Baseline |
| Decompression Speed | Similar | Similar |
| CPU Usage (Compress) | Higher at max level | Lower |
| Best For | Static files, CDN | Dynamic content |
| Browser Support | All modern browsers | Universal |
How to Enable Brotli Compression
Nginx
Add 'brotli on; brotli_types text/html text/css application/javascript;' to your nginx.conf. Requires the ngx_brotli module.
Cloudflare / CDN
Most CDNs including Cloudflare enable Brotli by default. Check your CDN settings panel.
Next.js / Vercel
Vercel automatically enables Brotli compression for all deployments. No configuration needed.
Apache
Use mod_brotli module with 'AddOutputFilterByType BROTLI_COMPRESS text/html text/css application/javascript'.
Browser Support
Brotli is supported by all modern browsers. For older browsers, servers automatically fall back to Gzip.
Developed by Google
Brotli was developed by Jyrki Alakuijala and Zoltán Szabadka at Google. It was released as open-source in 2015 and quickly adopted by major browsers and web servers. Google uses Brotli extensively across its products including Chrome, YouTube, and Google Fonts.
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