checkmail.hk - robtex.com

checkmail.hk

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:2603🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::ac43:d8b6🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.38.3Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.216.182🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSkay.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a7d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkay.ns.cloudflare.com
A2803:f800:50::6ca2:c07d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkay.ns.cloudflare.com
A2a06:98c1:50::ac40:207d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkay.ns.cloudflare.com
A108.162.192.125🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkay.ns.cloudflare.com
A172.64.32.125🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkay.ns.cloudflare.com
A173.245.58.125🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkay.ns.cloudflare.com
NSphil.ns.cloudflare.com
A2606:4700:58::adf5:3b89🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRphil.ns.cloudflare.com
A2803:f800:50::6ca2:c189🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRphil.ns.cloudflare.com
A2a06:98c1:50::ac40:2189🇺🇸 Cloudflare2a06:98c1:50::/45
PTRphil.ns.cloudflare.com
A108.162.193.137🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRphil.ns.cloudflare.com
A172.64.33.137🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRphil.ns.cloudflare.com
A173.245.59.137🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRphil.ns.cloudflare.com
MXsys23.checkmail.hk ⭐
A103.19.25.145🇭🇰 UDOMAIN-AS-AP103.19.25.0/24 Web Host Ltd Unit A-D, 6th Floor, Wing Cheung Industrial Building, No. 109 How Ming Street, Kwun Tong, Kowloon.
TXTv=spf1 ip4:103.19.25.145 include:_spf.checkmail.hk -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.38.3, 172.67.216.182
IPv6 hints2606:4700:3031::6815:2603, 2606:4700:3031::ac43:d8b6
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=0, name=cloudflare-ech.com
SOAkay.ns.cloudflare.comdns@cloudflare.com serial=2408725659

hk

DNSSEC🔒 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=2074963277

Subdomains

sys23.checkmail.hk

Same first word

checkmail.eu
checkmail.at
checkmail.co
checkmail.com.es
checkmail.vn
checkmail.se
checkmail.fr
checkmail.com
checkmail.hk
checkmail.in
checkmail.nl
checkmail.io
checkmail.de
checkmail.it
checkmail.ch
checkmail.cl
checkmail.ru
checkmail.org
checkmail.be
checkmail.ca
checkmail.com.br

Similar names

mailcheck.ch
mailcheck.ru
michaelkc.com
mailcheck.nu
mailcheck.com
mailcheck.xyz
kchemical.com
kamilcech.cz
mailcheck.io
mailcheck.ai
mailcheck.at
mailcheck.eu
mailcheck.de
mailcheck.me
mailcheck.nl
mailcheck.fr
mailcheck.co
mailcheck.us
limacheck.com
mailcheck.net
mailcheck.biz
mailcheck.org

DNS History

9 records (7 active, 2 former)

NSkay.ns.cloudflare.comphil.ns.cloudflare.comMXsys23.checkmail.hkA104.21.38.3172.67.216.1822606:4700:3031::6815:26032606:4700:3031::ac43:d8b62606:4700:3035::6815:26032606:4700:3036::ac43:d8b6
●NSkay.ns.cloudflare.com2026-05-02 → 2026-07-06 · 2 obs
● 2026-05-02 03:37:02
● 2026-07-06 00:33:56
●NSphil.ns.cloudflare.com2026-05-02 → 2026-07-06 · 2 obs
● 2026-05-02 03:37:02
● 2026-07-06 00:33:56
●MXsys23.checkmail.hk2026-05-02 → 2026-07-06 · 2 obs
● 2026-05-02 03:37:02
● 2026-07-06 00:33:56
●A104.21.38.32026-05-02 → 2026-07-06 · 2 obs
● 2026-05-02 03:37:02
● 2026-07-06 00:33:56
●A172.67.216.1822026-05-02 → 2026-07-06 · 2 obs
● 2026-05-02 03:37:02
● 2026-07-06 00:33:56
●A2606:4700:3031::6815:26032026-07-06 → 2026-07-06 · 3 obs
○ 2026-05-02 03:37:02
● 2026-07-06 00:33:54
● 2026-07-06 00:33:56
●A2606:4700:3031::ac43:d8b62026-07-06 → 2026-07-06 · 3 obs
○ 2026-05-02 03:37:02
● 2026-07-06 00:33:54
● 2026-07-06 00:33:56
○A2606:4700:3035::6815:26032026-05-02 → 2026-05-02 · 3 obs
● 2026-05-02 03:37:02
○ 2026-07-06 00:33:54
○ 2026-07-06 00:33:56
○A2606:4700:3036::ac43:d8b62026-05-02 → 2026-05-02 · 3 obs
● 2026-05-02 03:37:02
○ 2026-07-06 00:33:54
○ 2026-07-06 00:33:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
hky.hkirc.net.hk, v.hkirc.net.hk, d.hkirc.net.hk, c.hkirc.net.hk...-
checkmail.hkkay.ns.cloudflare.com, phil.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.137

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for checkmail.hk (unsigned zone)

⏱️ Timing

Total: 1890ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.38.3, 172.67.216.182
AAAA22606:4700:3031::ac43:d8b6, 2606:4700:3031::6815:2603
NS2kay.ns.cloudflare.com, phil.ns.cloudflare.com
MX1sys23.checkmail.hk (pri: 10)
TXT1v=spf1 ip4:103.19.25.145 include:_spf.ch
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1kay.ns.cloudflare.com dns.cloudflare.com

Analysis

Hierarchy

The domain sys23.checkmail.hk falls under the parent checkmail.hk.

IP Addresses

checkmail.hk points to the four IP addresses 104.21.38.3, 172.67.216.182, 2606:4700:3031::6815:2603 and 2606:4700:3031::ac43:d8b6.

chaoliunan.com, daticos.com, hubbet.online and two other host names share IP numbers with checkmail.hk.

Name Servers

Two name servers handle the delegation for checkmail.hk: kay.ns.cloudflare.com and phil.ns.cloudflare.com.

checkmail.hk uses the same name servers as several other domains — among them chalkidiki.co, prospectandvine.com, euroguidance-france.org and two more.

At least some of checkmail.hk's name servers are shared with other domains, for example maut-swiss.com, kol15.ru, saarkindustries.com and two more.

It is common for these name servers to be used in conjunction with the name servers eric.ns.cloudflare.com, trevor.ns.cloudflare.com and maria.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

kay.ns.cloudflare.com resolves to 108.162.192.125, 172.64.32.125 and 173.245.58.125 among others, with 3 other IP addresses in total.

phil.ns.cloudflare.com resolves to 108.162.193.137, 172.64.33.137 and 173.245.59.137 among others, with 3 other IP addresses in total.

Mail Servers

Mail for checkmail.hk is handled by a single mail server, sys23.checkmail.hk.

The mail server configuration of checkmail.hk is identical to that of other domains — sys23.checkmail.hk being one example.

sys23.checkmail.hk carries a single IP number, which is 103.19.25.145.