Expired50% confidenceFactExact time
W3C significantly strengthened the semantic tag system in the HTML5 specification.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Spec Website: An Open-Source Website Specification Checklist
bilibili锋芒AI6/25/2026
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