On the standards track: Yes
Is Experimental: Yes
Is Deprecated: No
In Chrome version preview on undefined Note: Counters are recognised, but the spoken values do not increment
In Chrome Android version 140 on 2025-09-02 Note: Counters are recognised, but the spoken values do not increment
In Edge version 140 on 2025-09-05 Note: Counters are recognised, but the spoken values do not increment
Not in Firefox
Not in Firefox for Android
Not in Internet Explorer
In Quest Browser version 41.0 on 2025-10-21 Note: Counters are recognised, but the spoken values do not increment
In Opera version 124 on undefined Note: Counters are recognised, but the spoken values do not increment
In Opera Android version 92 on 2025-10-08 Note: Counters are recognised, but the spoken values do not increment
Not in Safari
Not in Safari on iOS
Not in Samsung Internet
In WebView Android version 140 on 2025-09-02 Note: Counters are recognised, but the spoken values do not increment
Not in WebView on iOS