This is the first time the Speedometer benchmark, or any major browser benchmark, has been developed through a cross-industry collaboration supported by each major browser engine: Blink/V8, Gecko/SpiderMonkey, and WebKit/JavaScriptCore. It’s been developed under a new governance model, driven by consensus, and is hosted in a
shared repository that’s open to contribution. This new structure involves a lot of collective effort: discussions, research, debates, decisions, and hundreds of PRs since we announced the project in December 2022.We’re proud to release Speedometer 3.0 today as a collaborative effort between the three major browser engines: Blink, Gecko, and WebKit.