我想使用 github.io 托管一个网站，使用 www.nv-gr.fr
我已经放了一个A又@一个www
我的区域是：
@ 10800 IN SOA ns1.gandi.net. hostmaster.gandi.net. 1531775542 10800 3600 604800 10800
@ 1800 IN A 185.199.108.153
@ 1800 IN A 185.199.109.153
@ 1800 IN A 185.199.110.153
@ 1800 IN A 185.199.111.153
@ 10800 IN MX 10 spool.mail.gandi.net.
@ 10800 IN MX 50 fb.mail.gandi.net.
@ 10800 IN TXT "v=spf1 include:_mailcust.gandi.net ?all"
blog 10800 IN CNAME blogs.vip.gandi.net.
webmail 10800 IN CNAME webmail.gandi.net.
www 1800 IN A 185.199.108.153
访问 www.nv-gr.fr，我得到：
;; QUESTION SECTION:
;www.nv-gr.fr. IN A
;; ANSWER SECTION:
www.nv-gr.fr. 8757 IN CNAME nv-gr.fr.nv-gr.fr.
为什么我有这种奇怪的nv-gr.fr.nv-gr.fr.