Supported by the following organizations
This is to certify that Sipko Groefsema successfully completed and received a passing grade in WAI0.1x: Introduction to Web Accessibility a course of study offered by W3Cx, an online learning initiative of World Wide Web Consortium.
Noted by
Shawn Lawton Henry
Director, Web Accessibility Initiative (WAI) W3C
Marie-Claire Forgue
Director, Training W3C
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- Verified Certificate Issued July 3, 2025
- Valid Certificate ID d983fa9e3718467b8a39957f0ef4121d