延迟 4 ms0 NOERROR●
; <<>> DiG 9.16.50-Debian <<>> -t A checkip.com -p 53 -4 +timeout=5 +tries=2 +nofail +nocookie +nosplit +nsid ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48712 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 65494 ;; QUESTION SECTION: ;checkip.com. IN A ;; ANSWER SECTION: checkip.com. 300 IN A 172.67.150.14 checkip.com. 300 IN A 104.21.63.202 ;; Query time: 4 msec ;; SERVER: x.x.x.x#53(x.x.x.x) ;; WHEN: Tue Sep 29 18:45:16 UTC 2026 ;; MSG SIZE rcvd: 72
