github pages had IPv6 sometime on 2017[1]. they removed after changing the IPs to one of their own. They have been dragging their feet on enabling IPv6 even on

github pages had IPv6 sometime on 2017[1]. they removed after changing the IPs to one of their own. They have been dragging their feet on enabling IPv6 even on github.com and continues to be headache when working on a IPv6 only server. https://github.com/isaacs/github/issues/354 https://github.com/isaacs/github/issues/354