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First Public Working Draft: User Timing Level 3

March 5th, 2019

The Web Performance Working Group has published a First Public Working Draft of User Timing Level 3. This specification defines an interface to help web developers measure the performance of their applications by giving them access to high precision timestamps.

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  3. First Public Working Draft: Paint Timing 1
  4. W3C Invites Implementations of CSS Scroll Snap Module Level 1 and CSS Values and Units Module Level 3; Level 4 is a First Public Working Draft