digitalcore.jp - dns.ninja

`digitalcore.jp`

DNSSEC	⚠️ Not signed
A	183.181.86.100^{🇯🇵 XSERVER-AS183.181.84.0/22 XSERVER Inc.}
		PTR	`sv8899.xserver.jp`
NS	`ns1.xserver.jp` ⭐
		A	202.226.36.164^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		A	202.226.36.170^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		A	202.226.36.246^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns1.xserver.jp`
NS	`ns2.xserver.jp`
		A	35.72.43.26^{🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix}
			PTR	`ns2.xserver.jp`
NS	`ns3.xserver.jp`
		A	202.226.36.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns3.xserver.jp`
NS	`ns4.xserver.jp`
		A	183.90.224.226^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		A	183.90.224.230^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		A	202.226.39.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns4.xserver.jp`
NS	`ns5.xserver.jp`
		A	157.112.182.218^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
		A	157.112.182.220^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
		A	202.226.37.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns5.xserver.jp`
MX	`digitalcore.jp` ⭐
		A	183.181.86.100^{🇯🇵 XSERVER-AS183.181.84.0/22 XSERVER Inc.}
			PTR	`sv8899.xserver.jp`
TXT	`v=spf1 +a:sv8899.xserver.jp +a:digitalcore.jp +mx include:spf.sender.xserver....`
SOA	`ns1.xserver.jp`root@xserver.jp serial=0

`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=1786697102

MX for

digitalcore.jp

Subdomains

mx.digitalcore.jp

www.digitalcore.jp

Same first word

Similar names

DNS History

13 records (7 active, 6 former)

○NSdns01.gmoserver.jp2015-05-21 → 2016-09-18 · 4 obs

● 2015-05-21 12:14:46
● 2016-09-18 22:29:56
○ 2026-06-28 16:55:30
○ 2026-08-14 09:31:44

○NSdns02.gmoserver.jp2015-05-21 → 2016-09-18 · 4 obs

● 2015-05-21 12:14:46
● 2016-09-18 22:29:56
○ 2026-06-28 16:55:30
○ 2026-08-14 09:31:44

●NSns1.xserver.jp2026-06-28 → 2026-08-14 · 3 obs

○ 2016-09-18 22:29:56
● 2026-06-28 16:55:30
● 2026-08-14 09:31:44

●NSns2.xserver.jp2026-06-28 → 2026-08-14 · 3 obs

○ 2016-09-18 22:29:56
● 2026-06-28 16:55:30
● 2026-08-14 09:31:44

●NSns3.xserver.jp2026-06-28 → 2026-08-14 · 3 obs

○ 2016-09-18 22:29:56
● 2026-06-28 16:55:30
● 2026-08-14 09:31:44

●NSns4.xserver.jp2026-06-28 → 2026-08-14 · 3 obs

○ 2016-09-18 22:29:56
● 2026-06-28 16:55:30
● 2026-08-14 09:31:44

●NSns5.xserver.jp2026-06-28 → 2026-08-14 · 3 obs

○ 2016-09-18 22:29:56
● 2026-06-28 16:55:30
● 2026-08-14 09:31:44

●MXdigitalcore.jp2026-06-28 → 2026-08-14 · 3 obs

○ 2026-04-10 07:25:04
● 2026-06-28 16:55:30
● 2026-08-14 09:31:44

○MXmx.digitalcore.jp2015-05-21 → 2016-09-18 · 4 obs

● 2015-05-21 12:14:46
● 2016-09-18 22:29:56
○ 2026-04-10 07:25:04
○ 2026-08-14 09:31:44

○MXmx6.gmoserver.jp2026-04-10 → 2026-04-10 · 4 obs

○ 2016-09-18 22:29:56
● 2026-04-10 07:25:04
○ 2026-06-28 16:55:30
○ 2026-08-14 09:31:44

○A157.7.144.52015-05-21 → 2016-09-18 · 4 obs

● 2015-05-21 12:14:46
● 2016-09-18 22:29:56
○ 2026-04-10 07:25:04
○ 2026-08-14 09:31:44

●A183.181.86.1002026-06-28 → 2026-08-14 · 3 obs

○ 2026-04-10 07:25:04
● 2026-06-28 16:55:30
● 2026-08-14 09:31:44

○A210.172.183.322026-04-10 → 2026-04-10 · 4 obs

○ 2016-09-18 22:29:56
● 2026-04-10 07:25:04
○ 2026-06-28 16:55:30
○ 2026-08-14 09:31:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	b.dns.jp, f.dns.jp, d.dns.jp, e.dns.jp...	-
digitalcore.jp	ns4.xserver.jp, ns5.xserver.jp, ns2.xserver.jp, ns3.xserver.jp...	11 records

✅ Authoritative Response

Server:202.226.36.164

NS records: ns4.xserver.jp, ns5.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns1.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for digitalcore.jp (unsigned zone)

⏱️ Timing

Total: 755ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.181.86.100`
NS	5	`ns5.xserver.jp, ns3.xserver.jp...`
MX	1	`digitalcore.jp (pri: 0)`
TXT	1	`v=spf1 +a:sv8899.xserver.jp +a:digitalco`
SOA	1	`ns1.xserver.jp root.xserver.jp`

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns5.xserver.jp, ns5.xserver.jp, ns5.xserver.jp...)

Analysis

Hierarchy

digitalcore.jp is the parent domain of mx.digitalcore.jp and www.digitalcore.jp.

Mail Server Role

digitalcore.jp acts as its own mail server.

IP Addresses

digitalcore.jp points to a single IP number: 183.181.86.100.

Additional host names — tarori-book.com, plaza-dental.net, zenkatu.com and two others — share IP numbers with digitalcore.jp.

Name Servers

Delegation for digitalcore.jp is to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

digitalcore.jp partially shares its NS delegation with several other domains, including suitactor.jp, michiyotei.com, ko-chi.co.jp and two others.

These name servers are regularly seen alongside ns4.xserver.jp and ns5.xserver.jp as name servers.

Host names with three IP numbers:

ns1.xserver.jp resolves to three addresses: 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp resolves to three addresses: 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp resolves to three addresses: 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names pointing to a single IP address:

ns2.xserver.jp points to the IP address 35.72.43.26.

ns3.xserver.jp points to the IP address 202.226.36.247.

Mail Servers

digitalcore.jp has a single mail server: digitalcore.jp itself.

There is one IP number for digitalcore.jp: 183.181.86.100.