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Alon Kochba Profile picture
Alon Kochba
@alonkochba
Web Performance and Software Engineering at @Wix
Aug 8, 2021 • 8 tweets • 4 min read
Data and thoughts after enabling HTTP/3 at @Wix for our user domains #webperf #http3 #quic

Positive impact from TTFB to later phases such as FCP and LCP

1. TTFB p75 for CDN hits is considerably faster (~2x), especially in countries with weak devices or connections Image 2. Browser Adoption - Chrome/Firefox currently support the latest h3, Edge/Opera support h3-29

60% - 70% of requests are using HTTP/3 in Chromium based browsers (Chrome, Edge, Opera), and 40% of Firefox requests
Only 2% of Safari (experimental, will it be the default in iOS 15?)