Ionic Push host down

Hello All,

Few days back my notifications for ionic broke. And I am seeing the host itself to be not there any more. Is the URL changed or something.

➜  modules git:(premaster) ✗ nslookup push.ionic.io
Server:		10.4.4.10
Address:	10.4.4.10#53

** server can't find push.ionic.io: NXDOMAIN

Dig output for the same,

➜  modules git:(premaster) ✗ dig push.ionic.io

; <<>> DiG 9.8.3-P1 <<>> push.ionic.io
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 38391
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;push.ionic.io.			IN	A

;; ANSWER SECTION:
push.ionic.io.		300	IN	CNAME	kagoshima-3278.herokussl.com.

;; AUTHORITY SECTION:
herokussl.com.		60	IN	SOA	ns1.p19.dynect.net. hostmaster.heroku.com. 176605 3600 600 604800 60

;; Query time: 288 msec
;; SERVER: 10.4.4.10#53(10.4.4.10)
;; WHEN: Mon Aug  1 15:30:37 2016
;; MSG SIZE  rcvd: 145