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Resource Timing draft spec from webperf
Accessible Rich Internet Applications (WAI-ARIA)
Test Suites for Web Platform specifications—including WHATWG, W3C and others
The document repo for the Web Payments Working Group
Specberus is a checker used at W3C to validate the compliance of Technical Reports with publication rules.
W3C Web Payments - Payment Method Identifiers specification
Working Draft of the HTML specification
W3C Web Payments - Card Payment Method specification
W3C Web Payments Browser API
Tools for Web Platform Tests
Web Components specifications
Specification Edition Support Tool
Repository for the Spatial Data on the Web Working Group
SVG Working Group specifications