Lack of IPv6 on some parts

On parts of the website like

are not reachable using IPv6, despite CloudFront and AWS supporting IPv6 for some time already.
(I don’t know about the internals, especially not about the servers where the models run and fetch their traning data from, but if they do not support it either it might be a good idea to also roll it out there, if possible.)
As IPv6 is the modern internet protocol it would be a good idea to fully support it.

Hugging Face API services to confirm whether or not they are reachable using IPv6. However, you can try contacting Hugging Face customer support or their technical team for more information or assistance. They should be able to help you troubleshoot the issue or provide guidance on how to configure your network settings to enable IPv6 connectivity if it is supported by their services.

from usps tracking team