20250321 .se have 1395304 delegated zones
4908112 UDP and 1 TCP questions in 48m13.473s gave us
29.32% have IPv6 on www
83.85% have IPv6 on one or more DNS
27.56% have IPv6 on one or more MX
267 have only IPv6 on the www
I know IPv6, NOT HTML! :)

 Date     www       ns       mx    IPv6-only
20250321 29.32     83.85    27.56     267
20250320 29.34     83.89    27.57     268
20250319 29.28     83.75    27.52     264
20250318 29.28     83.72    27.50     262
20250317 29.31     83.83    27.53     263
20250316 29.25     83.68    27.47     261
20250315 29.25     83.73    27.49     263
20250314 29.23     83.70    27.47     261
20250313 29.18     83.66    27.45     260
20250312 29.20     83.90    27.53     261