DNS/oarc.net/txt/DNSAdvantageについて、ここに記述してください。
問い合わせを繰り返すと返事が変わる。
$ dig rs.dns-oarc.net txt @156.154.70.1
; <<>> DiG 9.11.1 <<>> rs.dns-oarc.net txt @156.154.70.1 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62665 ;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 1, ADDITIONAL: 2 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;rs.dns-oarc.net. IN TXT ;; ANSWER SECTION: rs.dns-oarc.net. 59 IN CNAME rst.x1013.rs.dns-oarc.net. rst.x1013.rs.dns-oarc.net. 58 IN CNAME rst.x1233.x1013.rs.dns-oarc.net. rst.x1233.x1013.rs.dns-oarc.net. 58 IN CNAME rst.x1414.x1233.x1013.rs.dns-oarc.net. rst.x1414.x1233.x1013.rs.dns-oarc.net. 57 IN TXT "156.154.162.86 DNS reply size limit is at least 1414" rst.x1414.x1233.x1013.rs.dns-oarc.net. 57 IN TXT "156.154.162.86 sent EDNS buffer size 4096" rst.x1414.x1233.x1013.rs.dns-oarc.net. 57 IN TXT "Tested at 2017-07-15 06:54:13 UTC" ;; AUTHORITY SECTION: x1414.x1233.x1013.rs.dns-oarc.net. 57 IN NS ns00.x1414.x1233.x1013.rs.dns-oarc.net. ;; ADDITIONAL SECTION: ns00.x1414.x1233.x1013.rs.dns-oarc.net. 57 IN A 64.191.0.136 ;; Query time: 1270 msec ;; SERVER: 156.154.70.1#53(156.154.70.1) ;; WHEN: Sat Jul 15 15:54:13 JST 2017 ;; MSG SIZE rcvd: 316