阿里公共 DNS 的后端是不是有问题

最近用 adguard home 解析域名发现一半的时间会解析到国外的 CDN 节点上面，比如 jd 抖音的域名。
于是在远程 vps 上面测试了下。发现阿里公共 dns 有时候传递了 esc ，有时候又没有。导致一会儿是国内 CDN 节点，一会是国外 CDN 节点。
也找不到地方反馈一下，哎

[opc@instance-sjc2 ~]$ dig @223.5.5.5 txt o-o.myaddr.l.google.com +subnet=27.8.59.1/24 ; <<>> DiG 9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.16 <<>> @223.5.5.5 txt o-o.myaddr.l.google.com +subnet=27.8.59.1/24 ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21080 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ; CLIENT-SUBNET: 27.8.59.0/24/24 ;; QUESTION SECTION: ;o-o.myaddr.l.google.com. IN TXT ;; ANSWER SECTION: o-o.myaddr.l.google.com. 17 IN TXT "47.254.235.11" ;; Query time: 172 msec ;; SERVER: 223.5.5.5#53(223.5.5.5) ;; WHEN: Sat Mar 01 20:40:40 CST 2025 ;; MSG SIZE rcvd: 89 [opc@instance-sjc2 ~]$ dig @223.5.5.5 txt o-o.myaddr.l.google.com +subnet=27.8.59.1/24 ; <<>> DiG 9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.16 <<>> @223.5.5.5 txt o-o.myaddr.l.google.com +subnet=27.8.59.1/24 ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51080 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1408 ; CLIENT-SUBNET: 27.8.59.0/24/24 ;; QUESTION SECTION: ;o-o.myaddr.l.google.com. IN TXT ;; ANSWER SECTION: o-o.myaddr.l.google.com. 44 IN TXT "47.254.235.11" o-o.myaddr.l.google.com. 44 IN TXT "edns0-client-subnet 27.8.0.0/25" ;; Query time: 171 msec ;; SERVER: 223.5.5.5#53(223.5.5.5) ;; WHEN: Sat Mar 01 20:40:41 CST 2025 ;; MSG SIZE rcvd: 133