stacksystem.co.jp - dns.ninja

`stacksystem.co.jp`

DNSSEC	⚠️ Not signed
A	183.181.97.89^{🇯🇵 XSERVER-AS183.181.96.0/23 XSERVER Inc.}
		PTR	`sv7088.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	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	142.251.111.26^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-site-verification=itVZVYhQfA_hPV_Xkwf7li8_r7MB7kotJ6qiC2FiI8Q`
TXT	`v=spf1 +a:sv7088.xserver.jp +a:stacksystem.co.jp +mx include:spf.sender.xserv...`
TXT	`MS=2545168DB67C6107CEEE6BFDFDCE9711CF5FFC28`
TXT	`google-site-verification=VbCf7hcAoG-EGSLkhg-tGl1ki5zzRaBs-xg6NoHL5Ig`
SOA	`ns1.xserver.jp`root@xserver.jp serial=0

`co.jp`

	DNSSEC	⚠️ Not signed
	TXT	`co.jp.`

WOT: SAFE (58/100)

Previously MX for

stacksystem.co.jp

Subdomains

ns1.stacksystem.co.jp

Same first word

stacksystem.co.jp

stacksystem.jp

Similar names

systemstack.tools

systemstack.co.jp

DNS History

22 records (11 active, 11 former)

○NSakagi.stack.or.jp2015-08-21 → 2016-12-31 · 4 obs

● 2015-08-21 15:35:28
● 2016-12-31 08:19:36
○ 2020-03-01 20:18:26
○ 2026-07-25 02:51:36

○NSgreen.yuki-d.co.jp2015-08-21 → 2016-12-31 · 4 obs

● 2015-08-21 15:35:28
● 2016-12-31 08:19:36
○ 2020-03-01 20:18:26
○ 2026-07-25 02:51:36

○NSns-1118.awsdns-11.org2020-03-01 → 2020-03-01 · 4 obs

○ 2016-12-31 08:19:36
● 2020-03-01 20:18:26
○ 2026-03-24 16:20:48
○ 2026-07-25 02:51:36

○NSns-1760.awsdns-28.co.uk2020-03-01 → 2020-03-01 · 4 obs

○ 2016-12-31 08:19:36
● 2020-03-01 20:18:26
○ 2026-03-24 16:20:48
○ 2026-07-25 02:51:36

○NSns-311.awsdns-38.com2020-03-01 → 2020-03-01 · 4 obs

○ 2016-12-31 08:19:36
● 2020-03-01 20:18:26
○ 2026-03-24 16:20:48
○ 2026-07-25 02:51:36

○NSns-918.awsdns-50.net2020-03-01 → 2020-03-01 · 4 obs

○ 2016-12-31 08:19:36
● 2020-03-01 20:18:26
○ 2026-03-24 16:20:48
○ 2026-07-25 02:51:36

○NSns1.stacksystem.jp2015-08-21 → 2016-12-31 · 4 obs

● 2015-08-21 15:35:28
● 2016-12-31 08:19:36
○ 2020-03-01 20:18:26
○ 2026-07-25 02:51:36

●NSns1.xserver.jp2026-03-24 → 2026-07-25 · 3 obs

○ 2020-03-01 20:18:26
● 2026-03-24 16:20:48
● 2026-07-25 02:51:36

○NSns2.webshogakukan.com2015-08-21 → 2016-03-09 · 4 obs

● 2015-08-21 15:35:28
● 2016-03-09 15:58:48
○ 2016-12-31 08:19:36
○ 2026-07-25 02:51:36

●NSns2.xserver.jp2026-03-24 → 2026-07-25 · 3 obs

○ 2020-03-01 20:18:26
● 2026-03-24 16:20:48
● 2026-07-25 02:51:36

●NSns3.xserver.jp2026-03-24 → 2026-07-25 · 3 obs

○ 2020-03-01 20:18:26
● 2026-03-24 16:20:48
● 2026-07-25 02:51:36

●NSns4.xserver.jp2026-03-24 → 2026-07-25 · 3 obs

○ 2020-03-01 20:18:26
● 2026-03-24 16:20:48
● 2026-07-25 02:51:36

●NSns5.xserver.jp2026-03-24 → 2026-07-25 · 3 obs

○ 2020-03-01 20:18:26
● 2026-03-24 16:20:48
● 2026-07-25 02:51:36

●MXalt1.aspmx.l.google.com2026-03-24 → 2026-07-25 · 3 obs

○ 2020-03-01 20:18:26
● 2026-03-24 16:20:48
● 2026-07-25 02:51:36

●MXalt2.aspmx.l.google.com2026-03-24 → 2026-07-25 · 3 obs

○ 2020-03-01 20:18:26
● 2026-03-24 16:20:48
● 2026-07-25 02:51:36

●MXalt3.aspmx.l.google.com2026-03-24 → 2026-07-25 · 3 obs

○ 2020-03-01 20:18:26
● 2026-03-24 16:20:48
● 2026-07-25 02:51:36

●MXalt4.aspmx.l.google.com2026-03-24 → 2026-07-25 · 3 obs

○ 2020-03-01 20:18:26
● 2026-03-24 16:20:48
● 2026-07-25 02:51:36

○MXasahi.stacksystem.jp2015-08-21 → 2016-12-31 · 4 obs

● 2015-08-21 15:35:28
● 2016-12-31 08:19:36
○ 2020-03-01 20:18:26
○ 2026-07-25 02:51:36

●MXaspmx.l.google.com2026-03-24 → 2026-07-25 · 3 obs

○ 2020-03-01 20:18:26
● 2026-03-24 16:20:48
● 2026-07-25 02:51:36

○MXstacksystem.co.jp2020-03-01 → 2020-03-01 · 4 obs

○ 2016-12-31 08:19:36
● 2020-03-01 20:18:26
○ 2026-03-24 16:20:48
○ 2026-07-25 02:51:36

●A183.181.97.892020-03-01 → 2026-07-25 · 3 obs

○ 2016-12-31 08:19:36
● 2020-03-01 20:18:26
● 2026-07-25 02:51:36

○A219.101.156.162015-08-21 → 2016-12-31 · 4 obs

● 2015-08-21 15:35:28
● 2016-12-31 08:19:36
○ 2020-03-01 20:18:26
○ 2026-07-25 02:51:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
stacksystem.co.jp	ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...	11 records

✅ Authoritative Response

Server:157.112.182.218

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stacksystem.co.jp (unsigned zone)

⏱️ Timing

Total: 1078ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.181.97.89`
NS	5	`ns2.xserver.jp, ns1.xserver.jp...`
MX	5	`ASPMX.L.GOOGLE.COM (pri: 1), ALT3.ASPMX.L.GOOGLE.COM (pri: 10)...`
TXT	4	`MS=2545168DB67C6107CEEE6BFDFDCE9711CF5FF, google-site-verification=itVZVYhQfA_hPV_...`
SOA	1	`ns1.xserver.jp root.xserver.jp`

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns1.xserver.jp, ns1.xserver.jp, ns1.xserver.jp...)

Analysis

Hierarchy

stacksystem.co.jp is the parent zone for ns1.stacksystem.co.jp.

IP Addresses

stacksystem.co.jp has exactly one IP address — 183.181.97.89.

ip008.stacksystem.jp, ogasawara.tv, pokedex.pokemongo-raku.com plus two other host names have IP numbers in common with stacksystem.co.jp.

Name Servers

Five name servers handle delegation for stacksystem.co.jp: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

stacksystem.co.jp partially shares its NS delegation with several other domains, including ariakebase.com, tantei-amahs.com, eden-kobetu.com and two others.

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

Host names carrying three IP numbers:

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

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

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

Host names resolving to a single IP address:

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

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

Mail Servers

stacksystem.co.jp is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by stacksystem.co.jp are shared with other domains: assamcareer.com, quickinsight.me, ns500754.ns500754.ns500671.ns500742.ns500688.ns500688.ns500704.ns500704.ns500688.ns500705.ns500678.ns500649.ns500649.ns500291.ns500153.tenderladiesbz.com and two others among them.

These mail servers often appear in conjunction with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names pointing to two IP addresses:

The A records for aspmx.l.google.com return 142.251.111.26 and 2607:f8b0:4004:c23::1b.

The A records for alt1.aspmx.l.google.com return 108.177.123.27 and 2800:3f0:4003:c0f::1a.

The A records for alt2.aspmx.l.google.com return 172.253.116.27 and 2a00:1450:400b:c02::1a.

The A records for alt3.aspmx.l.google.com return 192.178.223.27 and 2a00:1450:4009:c0f::1b.

The A records for alt4.aspmx.l.google.com return 172.253.157.27 and 2a00:1450:400c:c23::1a.