腾讯 Public DNS 部分域名无法解析？

UDP

$ dig fonts.gstatic.com @119.29.29.29

; <<>> DiG 9.11.2 <<>> fonts.gstatic.com @119.29.29.29
;; global options: +cmd
;; connection timed out; no servers could be reached

TCP

$ dig fonts.gstatic.com @119.29.29.29 +tcp
;; Connection to 119.29.29.29#53(119.29.29.29) for fonts.gstatic.com failed: connection refused.

httpdns 能正常解析

curl 119.29.29.29/d?dn=fonts.gstatic.com
203.208.39.255;203.208.39.247;203.208.39.239;203.208.39.255;203.208.39.248;203.208.39.247;203.208.39.239;203.208.39.248

另外 119.28.28.28 182.254.116.116 182.254.118.118 也是相同的结果
1.2.4.8 就可以正常解析 所以应该不是 ISP 的劫持？

$ dig fonts.gstatic.com @1.2.4.8

; <<>> DiG 9.11.2 <<>> fonts.gstatic.com @1.2.4.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7572
;; flags: qr rd ra; QUERY: 1, ANSWER: 9, AUTHORITY: 0, ADDITIONAL: 1

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

;; ANSWER SECTION:
fonts.gstatic.com.	48	IN	CNAME	gstaticadssl.l.google.com.
gstaticadssl.l.google.com. 2	IN	A	203.208.48.88
gstaticadssl.l.google.com. 2	IN	A	203.208.48.95
gstaticadssl.l.google.com. 2	IN	A	203.208.48.79
gstaticadssl.l.google.com. 2	IN	A	203.208.48.88
gstaticadssl.l.google.com. 122	IN	A	203.208.48.87
gstaticadssl.l.google.com. 122	IN	A	203.208.48.95
gstaticadssl.l.google.com. 122	IN	A	203.208.48.79
gstaticadssl.l.google.com. 122	IN	A	203.208.48.87

;; Query time: 15 msec
;; SERVER: 1.2.4.8#53(1.2.4.8)
;; WHEN: Thu Dec 28 23:15:21 CST 2017
;; MSG SIZE  rcvd: 210

网络是联通 @johnjiang85 给看一下？