`hostmaster.jp`

DNSSEC	⚠️ Not signed
A	2001:19f0:5:3265:5400:1ff:fe65:8a79^{🇺🇸 AS-VULTR2001:19f0::/38 Vultr Assigned Prefix}
		PTR	`mail.hostmaster.jp`
A	108.61.75.35^{🇺🇸 AS-VULTR108.61.64.0/19 Vultr Assigned Prefix}
NS	`sandy.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3adb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0db^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sandy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20db^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sandy.ns.cloudflare.com`
		A	108.162.192.219^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
		A	172.64.32.219^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
		A	173.245.58.219^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sandy.ns.cloudflare.com`
NS	`thomas.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bee^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thomas.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ee^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`thomas.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ee^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`thomas.ns.cloudflare.com`
		A	108.162.193.238^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thomas.ns.cloudflare.com`
		A	172.64.33.238^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thomas.ns.cloudflare.com`
		A	173.245.59.238^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thomas.ns.cloudflare.com`
MX	`mx01.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
MX	`mx02.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
TXT	`apple-domain=Fy80zuwmmlzFuDF1`
TXT	`v=spf1 ip4:108.61.75.35/24 ip6:2001:19f0:5:3265:5400:1ff:fe65:8a79/64 include...`
SOA	`sandy.ns.cloudflare.com`dns@cloudflare.com serial=2411740118

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1786725002

Subdomains

mail.hostmaster.jp

Same first word

hostmaster.es

hostmaster.ca

hostmaster.de

hostmaster.nl

hostmaster.cz

hostmaster.su

hostmaster.hu

hostmaster.domains

hostmaster.pl

hostmaster.lt

hostmaster.hatenadiary.com

hostmaster.dev

hostmaster.blogspot.si

hostmaster.vg

hostmaster.net.au

hostmaster.lu

hostmaster.ua

hostmaster.org

hostmaster.ro

hostmaster.se

hostmaster.rs

hostmaster.io

hostmaster.lv

hostmaster.at

hostmaster.me

hostmaster.co.il

hostmaster.dk

hostmaster.uz

hostmaster.co.za

hostmaster.cn

hostmaster.kz

hostmaster.blogspot.com.uy

hostmaster.ovh

hostmaster.us

hostmaster.kiev.ua

hostmaster.cc

hostmaster.sg

hostmaster.net

hostmaster.vn.ua

hostmaster.ks.ua

hostmaster.im

hostmaster.bid

hostmaster.ee

hostmaster.siiites.com

hostmaster.com.au

hostmaster.com

hostmaster.group

hostmaster.be

hostmaster.info

hostmaster.com.mx

hostmaster.gr

hostmaster.in.th

hostmaster.in

hostmaster.fi

hostmaster.sk

hostmaster.jp

hostmaster.net.ua

hostmaster.heteml.net

hostmaster.si

hostmaster.com.ua

hostmaster.eu

hostmaster.com.sg

hostmaster.zone

hostmaster.hatenablog.com

hostmaster.fedorapeople.org

hostmaster.it

hostmaster.ch

hostmaster.no

hostmaster.guru

Similar names

DNS History

7 records (6 active, 1 former)

●NSsandy.ns.cloudflare.com2020-01-04 → 2026-08-14 · 2 obs

● 2020-01-04 13:51:20
● 2026-08-14 17:03:52

●NSthomas.ns.cloudflare.com2020-01-04 → 2026-08-14 · 2 obs

● 2020-01-04 13:51:20
● 2026-08-14 17:03:52

○MXmail.hostmaster.jp2020-01-04 → 2020-11-13 · 4 obs

● 2020-01-04 13:51:20
● 2020-11-13 05:29:28
○ 2026-02-17 23:27:56
○ 2026-08-14 17:03:52

●MXmx01.mail.icloud.com2026-02-17 → 2026-08-14 · 3 obs

○ 2020-11-13 05:29:28
● 2026-02-17 23:27:56
● 2026-08-14 17:03:52

●MXmx02.mail.icloud.com2026-02-17 → 2026-08-14 · 3 obs

○ 2020-11-13 05:29:28
● 2026-02-17 23:27:56
● 2026-08-14 17:03:52

●A108.61.75.352020-01-04 → 2026-08-14 · 2 obs

● 2020-01-04 13:51:20
● 2026-08-14 17:03:52

●A2001:19f0:5:3265:5400:1ff:fe65:8a792020-01-04 → 2026-08-14 · 2 obs

● 2020-01-04 13:51:20
● 2026-08-14 17:03:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	h.dns.jp, c.dns.jp, f.dns.jp, g.dns.jp...	-
hostmaster.jp	sandy.ns.cloudflare.com, thomas.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.219

NS records: sandy.ns.cloudflare.com, thomas.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hostmaster.jp (unsigned zone)

⏱️ Timing

Total: 646ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`108.61.75.35`
AAAA	1	`2001:19f0:5:3265:5400:1ff:fe65:8a79`
NS	2	`sandy.ns.cloudflare.com, thomas.ns.cloudflare.com`
MX	2	`mx01.mail.icloud.com (pri: 10), mx02.mail.icloud.com (pri: 10)`
TXT	2	`apple-domain=Fy80zuwmmlzFuDF1, v=spf1 ip4:108.61.75.35/24 ip6:2001:19f0`
SOA	1	`sandy.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

hostmaster.jp is the parent zone for mail.hostmaster.jp.

IP Addresses

hostmaster.jp directs to two IP numbers, 108.61.75.35 and 2001:19f0:5:3265:5400:1ff:fe65:8a79

Other host names, such as mail.hostmaster.jp, share IP numbers with hostmaster.jp.

Name Servers

hostmaster.jp is delegated to two name servers: sandy.ns.cloudflare.com and thomas.ns.cloudflare.com.

hostmaster.jp uses the same name servers as several other domains — among them jx081.com, spinboss-ch.com, codopen.com and two more.

hostmaster.jp partially shares its NS delegation with several other domains, including ark-venture.com, kuh51.ru, 520detroit.com and two others.

The name servers wally.ns.cloudflare.com, jerry.ns.cloudflare.com, gordon.ns.cloudflare.com and adrian.ns.cloudflare.com are often found in use alongside these name servers.

Hostnames that resolve to 6 IP addresses:

sandy.ns.cloudflare.com resolves to 108.162.192.219, 172.64.32.219, 173.245.58.219 and 3 other IP addresses.

thomas.ns.cloudflare.com resolves to 108.162.193.238, 172.64.33.238, 173.245.59.238 and 3 other IP addresses.

Mail Servers

Mail for hostmaster.jp is handled by two mail servers — mx01.mail.icloud.com and mx02.mail.icloud.com.

hostmaster.jp uses an identical mail server configuration to several other domains — among them radudragomir.com, moi.dk, technosophos.com and two more.

Hostnames that resolve to 6 IP addresses:

mx01.mail.icloud.com resolves to 17.42.251.62, 17.56.9.31, 17.57.152.5 and 3 other IP addresses.

mx02.mail.icloud.com resolves to 17.42.251.62, 17.56.9.31, 17.57.152.5 and 3 other IP addresses.

mx01.mail.icloud.com and mx02.mail.icloud.com are host names that each point to 17.42.251.62 IP addresses.

mx01.mail.icloud.com and mx02.mail.icloud.com are host names that each point to 17.56.9.31 IP addresses.

mx01.mail.icloud.com and mx02.mail.icloud.com are host names that each point to 17.57.152.5 IP addresses.

mx01.mail.icloud.com and mx02.mail.icloud.com are host names that each point to 17.57.154.33 IP addresses.

mx01.mail.icloud.com and mx02.mail.icloud.com are host names that each point to 17.57.155.25 IP addresses.

mx01.mail.icloud.com and mx02.mail.icloud.com are host names that each point to 17.57.156.30 IP addresses.

hostmaster.jp - dns.ninja

hostmaster.jp

jp

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`hostmaster.jp`

`jp`