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Debug Speculation Rules with Chrome DevTools

Learn how Chrome works, participate in origin trials, and build with Chrome everywhere. Create the best experience for your users with the webs best tools. Design a beautiful and performant web with Chrome. Get things done quicker and neater, with our ready-made libraries. More from the Chrome team. Sign in to Chrome DevTools and explore various panels like Elements, Console, Sources, Network, Performance, Memory, Application, Recorder, Rendering, Autofill, Security, Sensors, WebAudio, WebAuthn, Animations, Changes, Coverage, Developer Resources, CSS Overview, Issues, Media, Memory Inspector, Network conditions, Network request blocking, and Performance monitor.