`tos-c.jp`

DNSSEC	⚠️ Not signed
A	216.230.253.178^{🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US}
		PTR	`wdxltw78.alpha-mail.jp`
NS	`kotetsu.alpha-lt.net` ⭐
		A	157.205.252.6^{🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)}
			PTR	`amdns01.alpha-mail.jp`
NS	`amdns03.alpha-mail.jp`
		A	216.230.254.112^{🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US}
			PTR	`amdns03.alpha-mail.jp`
NS	`tsukuba.aics.ne.jp`
		A	157.205.252.7^{🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)}
			PTR	`amdns02.alpha-mail.jp`
MX	`ampub01.alpha-mail.net` ⭐
		A	216.230.254.1^{🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US}
			PTR	`ampub01.alpha-mail.net`
MX	`ampub02.alpha-mail.net` ⭐
		A	216.230.254.2^{🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US}
			PTR	`ampub02.alpha-mail.net`
MX	`ampub03.alpha-mail.net` ⭐
		A	216.230.254.3^{🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US}
			PTR	`ampub03.alpha-mail.net`
MX	`ampub04.alpha-mail.net`⁽⁵⁰⁾
		A	216.230.254.4^{🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US}
			PTR	`ampub04.alpha-mail.net`
TXT	`v=spf1 ip4:157.205.202.0/24 ip4:157.205.203.128/25 ip4:216.230.250.0/24 ip4:2...`
SOA	`kotetsu.alpha-lt.net`postmaster@alpha-web.ne.jp 2023-08-07 #8

`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=1777262403

Same first word

tos-c.jp

Similar names

osc-t.ru

cos-t.com

ts-co.net

s-cot.co.th

sco-t.com

ts-co.com

ts-co.co.jp

os-ct.com

t-sco.com

co-ts.com

ot-cs.com

st-oc.com

t-sco.info

to-cs.org

ts-co.biz

cto-s.com

sco-t.nl

tcs-o.co.jp

to-cs.com

cs-ot.com

os-tc.de

DNS History

9 records (8 active, 1 former)

●NSamdns03.alpha-mail.jp2026-04-24 → 2026-04-27 · 3 obs

○ 2015-08-13 15:10:28
● 2026-04-24 06:47:06
● 2026-04-27 04:43:30

●NSkotetsu.alpha-lt.net2015-08-13 → 2026-04-27 · 2 obs

● 2015-08-13 15:10:28
● 2026-04-27 04:43:30

●NStsukuba.aics.ne.jp2015-08-13 → 2026-04-27 · 2 obs

● 2015-08-13 15:10:28
● 2026-04-27 04:43:30

●MXampub01.alpha-mail.net2015-08-13 → 2026-04-27 · 2 obs

● 2015-08-13 15:10:28
● 2026-04-27 04:43:30

●MXampub02.alpha-mail.net2015-08-13 → 2026-04-27 · 2 obs

● 2015-08-13 15:10:28
● 2026-04-27 04:43:30

●MXampub03.alpha-mail.net2015-08-13 → 2026-04-27 · 2 obs

● 2015-08-13 15:10:28
● 2026-04-27 04:43:30

●MXampub04.alpha-mail.net2026-04-24 → 2026-04-27 · 3 obs

○ 2015-08-13 15:10:28
● 2026-04-24 06:47:06
● 2026-04-27 04:43:30

○A216.230.250.1812015-08-13 → 2016-07-09 · 4 obs

● 2015-08-13 15:10:28
● 2016-07-09 15:13:16
○ 2026-04-24 06:47:06
○ 2026-04-27 04:43:30

●A216.230.253.1782026-04-24 → 2026-04-27 · 3 obs

○ 2016-07-09 15:13:16
● 2026-04-24 06:47:06
● 2026-04-27 04:43:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	b.dns.jp, g.dns.jp, h.dns.jp, d.dns.jp...	-
tos-c.jp	amdns03.alpha-mail.jp, kotetsu.alpha-lt.net, tsukuba.aics.ne.jp	1 record

✅ Authoritative Response

Server:216.230.254.112

NS records: amdns03.alpha-mail.jp, kotetsu.alpha-lt.net, tsukuba.aics.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tos-c.jp (unsigned zone)

⏱️ Timing

Total: 1461ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.230.253.178`
NS	3	`kotetsu.alpha-lt.net, tsukuba.aics.ne.jp...`
MX	4	`ampub04.alpha-mail.net (pri: 50), ampub03.alpha-mail.net (pri: 10)...`
TXT	1	`v=spf1 ip4:157.205.202.0/24 ip4:157.205.`
SOA	1	`kotetsu.alpha-lt.net postmaster.alpha-we`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (amdns03.alpha-mail.jp)

Analysis

IP Addresses

tos-c.jp points to a single IP number: 216.230.253.178.

Other host names, for instance men-sakurai.co.jp, office-setsu.com, vsolution.co.jp, k-style.co.jp and tsubo.co.jp share IP numbers with tos-c.jp.

Name Servers

The domain tos-c.jp is delegated to three name servers: amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp.

tos-c.jp shares name servers with other domains at least partially, for instance tesys.co.jp, bestlap.net, daisen-tokyo.com, nishiosaka.co.jp and shizen.or.jp.