On 09-Mar-21 16:30, John Levine wrote: > In article <4CC47F19-3063-430F-8378-B00EB7E2708F@xxxxxxxxx> you write: >> -=-=-=-=-=- >> >> It is my understanding that they all are, and have been for some time. I might suggest that you ping6 (or ping -6 depending on your OS) to see whether you >> get a response. > > Yes, they all are. The mail is, too. https://www.irtf.org/ too. https://www.rfc-editor.org/ too. https://www.internetsociety.org/ too. The "six or not" FireFox extension tells me that the ISOC site invokes a couple of IPv4 services, so needs dual stack. The IETF site is clean in that regard. Brian
