methodology / Performance / #10

Compression (Brotli / gzip)

live factor #10 · Performance · scoring impl: implemented · weight 0.7%

What we measure

Compressed pages download 60-90% faster than uncompressed ones. Brotli is best, gzip is acceptable, no compression hurts mobile users on slow connections.

How to improve your score

Most hosts and CDNs enable Brotli automatically. If neither is active, enable in your web server config or front the site with Cloudflare.

Data source

Data source for this factor is not yet documented.

Scoring

Scoring formulas are versioned with the methodology. The current method (v1.1.0) maps raw measurements to pass, warn, fail. Factor weights determine how much each contributes to the composite — see the methodology index for the full table.

Version history

← back to methodology