DNS/watchNS/vavrusa.comについて、ここに記述してください。

/CNAME-log

$ kdig -t a seqalpha.vavrusa.com @107.170.240.33

;; ->>HEADER<<- opcode: QUERY; status: NOERROR; id: 54751
;; Flags: qr aa rd; QUERY: 1; ANSWER: 2; AUTHORITY: 2; ADDITIONAL: 4

;; QUESTION SECTION:
;; seqalpha.vavrusa.com.                IN      A

;; ANSWER SECTION:
seqalpha.vavrusa.com.   3600    IN      CNAME   www.vavrusa.com.
www.vavrusa.com.        3600    IN      A       95.85.40.151

;; AUTHORITY SECTION:
vavrusa.com.            3600    IN      NS      ns1.vavrusa.com.
vavrusa.com.            3600    IN      NS      ns2.vavrusa.com.

;; ADDITIONAL SECTION:
ns1.vavrusa.com.        3600    IN      A       95.85.40.151
ns1.vavrusa.com.        3600    IN      AAAA    2a03:b0c0:0:1010::c6:b001
ns2.vavrusa.com.        3600    IN      A       107.170.240.33
ns2.vavrusa.com.        3600    IN      AAAA    2604:a880:1:20::21b:e001

;; Received 200 B
;; Time 2015-10-20 13:25:23 JST
;; From 107.170.240.33@53(UDP) in 161.9 ms

ns1.vavrusa.com はKnot DNS authoritative server か。

$ kdig -t a seqalpha.vavrusa.com @95.85.40.151

;; ->>HEADER<<- opcode: QUERY; status: NOERROR; id: 28520
;; Flags: qr aa rd; QUERY: 1; ANSWER: 2; AUTHORITY: 0; ADDITIONAL: 0

;; QUESTION SECTION:
;; seqalpha.vavrusa.com.                IN      A

;; ANSWER SECTION:
seqalpha.vavrusa.com.   3600    IN      CNAME   www.vavrusa.com.
www.vavrusa.com.        3600    IN      A       95.85.40.151

;; Received 76 B
;; Time 2015-10-20 13:28:00 JST
;; From 95.85.40.151@53(UDP) in 290.0 ms

-- ToshinoriMaeno 2015-10-20 04:27:47