ctr.hk - dns.ninja

ctr.hk

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:cbceπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3037::6815:e9dπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.14.157Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.203.206πŸ‡ΊπŸ‡Έ Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
NSbarbara.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3af8πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbarbara.ns.cloudflare.com
A2803:f800:50::6ca2:c0f8πŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbarbara.ns.cloudflare.com
A2a06:98c1:50::ac40:20f8πŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRbarbara.ns.cloudflare.com
A108.162.192.248πŸ‡ΊπŸ‡Έ Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbarbara.ns.cloudflare.com
A172.64.32.248πŸ‡ΊπŸ‡Έ Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbarbara.ns.cloudflare.com
A173.245.58.248πŸ‡ΊπŸ‡Έ Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbarbara.ns.cloudflare.com
NSphil.ns.cloudflare.com
A2606:4700:58::adf5:3b89πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRphil.ns.cloudflare.com
A2803:f800:50::6ca2:c189πŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRphil.ns.cloudflare.com
A2a06:98c1:50::ac40:2189πŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRphil.ns.cloudflare.com
A108.162.193.137πŸ‡ΊπŸ‡Έ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRphil.ns.cloudflare.com
A172.64.33.137πŸ‡ΊπŸ‡Έ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRphil.ns.cloudflare.com
A173.245.59.137πŸ‡ΊπŸ‡Έ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRphil.ns.cloudflare.com
MX_dc-mx.1a5ef0fea0dc.ctr.hk ⭐
A103.11.103.158πŸ‡­πŸ‡° SCICUBE-AS103.11.103.0/24 SCICUBE-ROUTE-OBJ
PTRmail.hkitn.com
TXTgoogle-site-verification=J7YpWklS8-P6DWBqIVBSj_OIKPD2Ly4P2WDG9GP6IGk
TXTv=spf1 a mx ip4:103.11.103.158 ~all
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.14.157, 172.67.203.206
IPv6 hints2606:4700:3030::ac43:cbce, 2606:4700:3037::6815:e9d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=26, name=cloudflare-ech.com
SOAbarbara.ns.cloudflare.comdns@cloudflare.com serial=2409941488

hk

DNSSECπŸ”’ Signed (DS record present)
NSns3.hkirc.net.hk ⭐
NSc.hkirc.net.hk
NSd.hkirc.net.hk
NSm.hkirc.net.hk
NSt.hkirc.net.hk
NSu.hkirc.net.hk
NSv.hkirc.net.hk
NSx.hkirc.net.hk
NSy.hkirc.net.hk
NSz.hkirc.net.hk
SOAns3.hkirc.net.hkhostmaster@hkirc.net.hk serial=2074971946

Subdomains

Same first word

Similar names

DNS History

20 records (7 active, 13 former)

20162017201820192020202120222023202420252026NSbarbara.ns.cloudflare.comphil.ns.cloudflare.comns1.ctr.hkns1.free-vds.comns2.ctr.hkns2.free-vds.comns73.pointdnshere.comns74.pointdnshere.comMX_dc-mx.1a5ef0fea0dc.ctr.hkmail.ctr.hkA104.21.14.157172.67.203.2062606:4700:3030::ac43:cbce2606:4700:3037::6815:e9d103.11.103.158114.112.226.3117.18.119.249218.213.247.222606:4700:3031::ac43:cbce2606:4700:3036::6815:e9d
●NSbarbara.ns.cloudflare.com2026-02-16 β†’ 2026-07-24 Β· 3 obs
β—‹ 2021-01-07 13:39:26
● 2026-02-16 13:34:22
● 2026-07-24 12:50:02
β—‹NSns1.ctr.hk2015-12-06 β†’ 2021-01-07 Β· 5 obs
β—‹ 2015-12-02 01:50:28
● 2015-12-06 17:12:54
● 2021-01-07 13:39:26
β—‹ 2026-02-16 13:34:22
β—‹ 2026-07-24 12:50:02
β—‹NSns1.free-vds.com2015-11-01 β†’ 2015-12-02 Β· 5 obs
β—‹ 2015-10-26 09:04:24
● 2015-11-01 01:46:10
● 2015-12-02 01:50:28
β—‹ 2015-12-06 17:12:54
β—‹ 2026-07-24 12:50:02
β—‹NSns2.ctr.hk2015-12-06 β†’ 2021-01-07 Β· 5 obs
β—‹ 2015-12-02 01:50:28
● 2015-12-06 17:12:54
● 2021-01-07 13:39:26
β—‹ 2026-02-16 13:34:22
β—‹ 2026-07-24 12:50:02
β—‹NSns2.free-vds.com2015-11-01 β†’ 2015-12-02 Β· 5 obs
β—‹ 2015-10-26 09:04:24
● 2015-11-01 01:46:10
● 2015-12-02 01:50:28
β—‹ 2015-12-06 17:12:54
β—‹ 2026-07-24 12:50:02
β—‹NSns73.pointdnshere.com2015-07-16 β†’ 2015-10-26 Β· 4 obs
● 2015-07-16 05:56:32
● 2015-10-26 09:04:24
β—‹ 2015-11-01 01:46:10
β—‹ 2026-07-24 12:50:02
β—‹NSns74.pointdnshere.com2015-07-16 β†’ 2015-10-26 Β· 4 obs
● 2015-07-16 05:56:32
● 2015-10-26 09:04:24
β—‹ 2015-11-01 01:46:10
β—‹ 2026-07-24 12:50:02
●NSphil.ns.cloudflare.com2026-02-16 β†’ 2026-07-24 Β· 3 obs
β—‹ 2021-01-07 13:39:26
● 2026-02-16 13:34:22
● 2026-07-24 12:50:02
●MX_dc-mx.1a5ef0fea0dc.ctr.hk2026-02-16 β†’ 2026-07-24 Β· 3 obs
β—‹ 2021-01-07 13:39:26
● 2026-02-16 13:34:22
● 2026-07-24 12:50:02
β—‹MXmail.ctr.hk2015-07-16 β†’ 2021-01-07 Β· 4 obs
● 2015-07-16 05:56:32
● 2021-01-07 13:39:26
β—‹ 2026-02-16 13:34:22
β—‹ 2026-07-24 12:50:02
β—‹A103.11.103.1582016-11-30 β†’ 2021-01-07 Β· 5 obs
β—‹ 2016-11-19 08:53:56
● 2016-11-30 14:20:26
● 2021-01-07 13:39:26
β—‹ 2026-02-16 13:34:22
β—‹ 2026-07-24 12:50:02
●A104.21.14.1572026-02-16 β†’ 2026-07-24 Β· 3 obs
β—‹ 2021-01-07 13:39:26
● 2026-02-16 13:34:22
● 2026-07-24 12:50:02
β—‹A114.112.226.32015-11-01 β†’ 2015-12-02 Β· 5 obs
β—‹ 2015-10-26 09:04:24
● 2015-11-01 01:46:10
● 2015-12-02 01:50:28
β—‹ 2015-12-06 17:12:54
β—‹ 2026-07-24 12:50:02
β—‹A117.18.119.2492015-12-06 β†’ 2016-11-19 Β· 5 obs
β—‹ 2015-12-02 01:50:28
● 2015-12-06 17:12:54
● 2016-11-19 08:53:56
β—‹ 2016-11-30 14:20:26
β—‹ 2026-07-24 12:50:02
●A172.67.203.2062026-02-16 β†’ 2026-07-24 Β· 3 obs
β—‹ 2021-01-07 13:39:26
● 2026-02-16 13:34:22
● 2026-07-24 12:50:02
β—‹A218.213.247.222015-07-16 β†’ 2015-10-26 Β· 4 obs
● 2015-07-16 05:56:32
● 2015-10-26 09:04:24
β—‹ 2015-11-01 01:46:10
β—‹ 2026-07-24 12:50:02
●A2606:4700:3030::ac43:cbce2026-06-25 β†’ 2026-07-24 Β· 3 obs
β—‹ 2026-02-16 13:34:22
● 2026-06-25 00:13:26
● 2026-07-24 12:50:02
β—‹A2606:4700:3031::ac43:cbce2026-02-16 β†’ 2026-02-16 Β· 4 obs
β—‹ 2021-01-07 13:39:26
● 2026-02-16 13:34:22
β—‹ 2026-06-25 00:13:26
β—‹ 2026-07-24 12:50:02
β—‹A2606:4700:3036::6815:e9d2026-02-16 β†’ 2026-02-16 Β· 4 obs
β—‹ 2021-01-07 13:39:26
● 2026-02-16 13:34:22
β—‹ 2026-06-25 00:13:26
β—‹ 2026-07-24 12:50:02
●A2606:4700:3037::6815:e9d2026-06-25 β†’ 2026-07-24 Β· 3 obs
β—‹ 2026-02-16 13:34:22
● 2026-06-25 00:13:26
● 2026-07-24 12:50:02

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
hkc.hkirc.net.hk, d.hkirc.net.hk, m.hkirc.net.hk, t.hkirc.net.hk...15 records
ctr.hkbarbara.ns.cloudflare.com, phil.ns.cloudflare.com-

βœ… Authoritative Response

Server:172.64.32.248

NS records: barbara.ns.cloudflare.com, phil.ns.cloudflare.com

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctr.hk (unsigned zone)

⏱️ Timing

Total: 1115ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A2172.67.203.206, 104.21.14.157
AAAA22606:4700:3030::ac43:cbce, 2606:4700:3037::6815:e9d
NS2barbara.ns.cloudflare.com, phil.ns.cloudflare.com
MX1_dc-mx.1a5ef0fea0dc.ctr.hk (pri: 10)
TXT2google-site-verification=J7YpWklS8-P6DWB, v=spf1 a mx ip4:103.11.103.158 ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1barbara.ns.cloudflare.com dns.cloudflare

πŸ“Œ Glue Records Collected

Total: 15

In-bailiwick: 15 (c.hkirc.net.hk, d.hkirc.net.hk, m.hkirc.net.hk...)

Analysis

Hierarchy

ctr.hk serves as parent to www.ctr.hk, *.ctr.hk, ns2.ctr.hk, 1a5ef0fea0dc.ctr.hk, debts.ctr.hk along with a few other host names.

IP Addresses

ctr.hk has four IP addresses: 104.21.14.157, 172.67.203.206, 2606:4700:3030::ac43:cbce and 2606:4700:3037::6815:e9d.

bigbandoffun.com, ten-x.ru, siteye.club plus two other host names have IP numbers in common with ctr.hk.

Name Servers

ctr.hk uses two name servers for its delegation: barbara.ns.cloudflare.com and phil.ns.cloudflare.com.

The name server configuration of ctr.hk is shared with other domains, for instance advisorbooklets.com, aissaian.com, bbcw.org and two others.

ctr.hk has at least partial name server overlap with other domains, such as viaggi.me, glthemes.com, vozduhan.sbs and two others.

It is common to see these name servers used together with name servers trevor.ns.cloudflare.com and jewel.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname barbara.ns.cloudflare.com directs to 108.162.192.248, 172.64.32.248 and 173.245.58.248 along with 3 other IP addresses.

Hostname phil.ns.cloudflare.com directs to 108.162.193.137, 172.64.33.137 and 173.245.59.137 along with 3 other IP addresses.

Mail Servers

ctr.hk uses one mail server β€” _dc-mx.1a5ef0fea0dc.ctr.hk.

_dc-mx.1a5ef0fea0dc.ctr.hk directs to just one IP number, 103.11.103.158.