A rugged, minimal framework for composing JavaScript behavior in your markup.

Test suites for Web platform specs — including WHATWG, W3C, and others

A simple online fake REST API server

Open source courseware for Git and GitHub

An open-source, privacy-enhancing web browser for iOS, utilizing the Tor anonymity network

W3C Web Performance Working Group repo

The W3C API

Website sources for the Apache Community Development Website

Resource Timing

Navigation Timing

Performance Timeline

Network Error Logging

Resource Hints

Server Timing

Collection of Software Templates for Red Hat Developer Hub

High Resolution Time

Cooperative Scheduling of Background Tasks

Page Visibility

Web site sources

Web Performance Group charter

User Timing

Sample extensions for Dynamics 365 Finance and Supply Chain Management to bootstrap teams wanting to start emitting telemetry for SCM related processes.

A Primer for Web Performance Timing APIs

📱 Track WhatsApp contacts' online activity in real-time. Get notifications, view history, and analyze patterns. Open-source, privacy-focused tool.

Monitor a WhatsApp user’s online activity with comprehensive reports that include timestamps, duration online, percentage of time spent online, and visual data through charts and graphs. Track stat…

Repository for the W3C Threat Modeling Community Group (TMCG)

Performance APIs, Security and Privacy

Timing Entry Names Registry

Explore the DevTools protocol—its domains, methods, and events