methodology / Modern Web / #30

HTTP/3 support

live factor #30 · Modern Web · scoring impl: implemented · weight 0.7%

What we measure

HTTP/3 is the newest version of HTTP, built on QUIC. It loads faster on lossy mobile networks. Cloudflare, Fastly, and most modern CDNs support it; legacy hosts don't.

How to improve your score

Front your site with Cloudflare or another HTTP/3-capable CDN. Toggle in CDN settings.

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

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