watchCNAME/ibm.comについて、ここに記述してください。

watchWWW/ibm.com 

$ dig www.ibm.com

; <<>> DiG 9.11.2 <<>> www.ibm.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 14505
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;www.ibm.com.                   IN      A

;; ANSWER SECTION:
www.ibm.com.            3600    IN      CNAME   www.ibm.com.cs186.net.
www.ibm.com.cs186.net.  60      IN      CNAME   www2.ibm.com.edgekey.net.
www2.ibm.com.edgekey.net. 3600  IN      CNAME   e2874.dscx.akamaiedge.net.
e2874.dscx.akamaiedge.net. 20   IN      A       72.246.221.37

;; Query time: 575 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon Dec 11 13:37:08 JST 2017
;; MSG SIZE  rcvd: 162