`simplex-tech.co.jp`

DNSSEC	⚠️ Not signed
NS	`nameserver1.kvh.ne.jp` ⭐
		A	61.120.195.101^{🇯🇵 KVH61.120.192.0/21 Colt Technology Services Co., Ltd.}
			PTR	`nameserver1.kvh.ne.jp`
NS	`nameserver2.kvh.ne.jp`
		A	2400:1000:4001:ffff:203:167:44:101^{🇯🇵 KVH2400:1000:4000::/34}
		A	203.167.44.101^{🇯🇵 KVH203.167.40.0/21}
			PTR	`nameserver2.kvh.ne.jp`
MX	`simplextech-co-jp01i.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc1a::1^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-ty3p286cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1a::2^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-tyvp286cu00302.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1f::^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-os9p286cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1f::1^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-os0p286cu01201.inbound.protection.outlook.com`
		A	52.101.124.5^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-tyvp286cu00305.inbound.protection.outlook.com`
		A	52.101.157.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os0p286cu01302.inbound.protection.outlook.com`
		A	52.101.157.11^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os0p286cu01203.inbound.protection.outlook.com`
		A	52.101.157.40^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os9p286cu00100.inbound.protection.outlook.com`
MX	`mx2.greatsimplex.com`⁽⁵⁾
		A	61.206.171.227^{🇯🇵 GIGAINFRA61.206.128.0/18 BBT-CIDR-BLOCK}
TXT	`v=spf1 +ip4:122.214.1.96/28 +ip4:61.206.171.224/28 include:simplex-cn-co-jp.h...`
TXT	`MS=ms42833032`
TXT	`rdETfkAwMKauBD8fGPcC1KzyEf7SIH`
TXT	`google-site-verification=9KNvz-R5HDUB-7M93pTEDkOrHyfDRyWL4k3mcJOn3TA`
SOA	`nameserver1.kvh.ne.jp`postmaster@kvh.ne.jp 2025-07-03 #1

`co.jp`

	DNSSEC	⚠️ Not signed
	TXT	`co.jp.`

📈 Tranco rank: #912,230
WOT: SAFE (58/100)

Subdomains

mx2.simplex-tech.co.jp

www.simplex-tech.co.jp

Same first word

simplex-tech.myshopify.com

simplex-tech.co.jp

DNS History

16 records (4 active, 12 former)

●NSnameserver1.kvh.ne.jp2015-09-04 → 2026-03-23 · 3 obs

○ 2007-12-05 07:42:32
● 2015-09-04 00:59:36
● 2026-03-23 10:44:00

●NSnameserver2.kvh.ne.jp2015-09-04 → 2026-03-23 · 3 obs

○ 2007-12-05 07:42:32
● 2015-09-04 00:59:36
● 2026-03-23 10:44:00

○NSns2.kvh.ne.jp2007-12-05 → 2007-12-05 · 3 obs

● 2007-12-05 07:42:32
○ 2015-09-04 00:59:36
○ 2026-03-23 10:44:00

○NSvs0002.shi.kvh.ne.jp2007-12-05 → 2007-12-05 · 3 obs

● 2007-12-05 07:42:32
○ 2015-09-04 00:59:36
○ 2026-03-23 10:44:00

○MXalt1.aspmx.l.google.com2015-11-07 → 2017-06-28 · 5 obs

○ 2015-09-15 19:58:46
● 2015-11-07 15:21:22
● 2017-06-28 10:42:52
○ 2026-02-18 01:09:30
○ 2026-03-23 10:44:00

○MXalt2.aspmx.l.google.com2015-11-07 → 2017-06-28 · 5 obs

○ 2015-09-15 19:58:46
● 2015-11-07 15:21:22
● 2017-06-28 10:42:52
○ 2026-02-18 01:09:30
○ 2026-03-23 10:44:00

○MXaspmx.l.google.com2015-11-07 → 2017-06-28 · 5 obs

○ 2015-09-15 19:58:46
● 2015-11-07 15:21:22
● 2017-06-28 10:42:52
○ 2026-02-18 01:09:30
○ 2026-03-23 10:44:00

○MXaspmx2.googlemail.com2015-11-07 → 2017-06-28 · 5 obs

○ 2015-09-15 19:58:46
● 2015-11-07 15:21:22
● 2017-06-28 10:42:52
○ 2026-02-18 01:09:30
○ 2026-03-23 10:44:00

○MXaspmx3.googlemail.com2015-11-07 → 2017-06-28 · 5 obs

○ 2015-09-15 19:58:46
● 2015-11-07 15:21:22
● 2017-06-28 10:42:52
○ 2026-02-18 01:09:30
○ 2026-03-23 10:44:00

○MXmx.simplex-tech.co.jp2007-12-05 → 2007-12-05 · 3 obs

● 2007-12-05 07:42:32
○ 2015-09-04 00:59:36
○ 2026-03-23 10:44:00

○MXmx1.simplex-tech.co.jp2015-09-04 → 2015-09-15 · 5 obs

○ 2007-12-05 07:42:32
● 2015-09-04 00:59:36
● 2015-09-15 19:58:46
○ 2015-11-07 15:21:22
○ 2026-03-23 10:44:00

●MXmx2.greatsimplex.com2026-02-18 → 2026-03-23 · 3 obs

○ 2017-06-28 10:42:52
● 2026-02-18 01:09:30
● 2026-03-23 10:44:00

○MXmx2.simplex-tech.co.jp2015-09-04 → 2015-09-15 · 5 obs

○ 2007-12-05 07:42:32
● 2015-09-04 00:59:36
● 2015-09-15 19:58:46
○ 2015-11-07 15:21:22
○ 2026-03-23 10:44:00

○MXmx3.simplex-tech.co.jp2015-09-04 → 2015-09-15 · 5 obs

○ 2007-12-05 07:42:32
● 2015-09-04 00:59:36
● 2015-09-15 19:58:46
○ 2015-11-07 15:21:22
○ 2026-03-23 10:44:00

○MXmx4.simplex-tech.co.jp2015-09-04 → 2015-09-15 · 5 obs

○ 2007-12-05 07:42:32
● 2015-09-04 00:59:36
● 2015-09-15 19:58:46
○ 2015-11-07 15:21:22
○ 2026-03-23 10:44:00

●MXsimplextech-co-jp01i.mail.protection.outlook.com2015-11-07 → 2026-03-23 · 3 obs

○ 2015-09-15 19:58:46
● 2015-11-07 15:21:22
● 2026-03-23 10:44:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...	-
simplex-tech.co.jp	nameserver1.kvh.ne.jp, nameserver2.kvh.ne.jp	2 records

✅ Authoritative Response

Server:61.120.195.101

NS records: nameserver1.kvh.ne.jp, nameserver2.kvh.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for simplex-tech.co.jp (unsigned zone)

⏱️ Timing

Total: 1244ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`nameserver1.kvh.ne.jp, nameserver2.kvh.ne.jp`
MX	2	`simplextech-co-jp01i.mail.protection.out, mx2.greatsimplex.com (pri: 5)`
TXT	4	`v=spf1 +ip4:122.214.1.96/28 +ip4:61.206., MS=ms42833032...`
SOA	1	`nameserver1.kvh.ne.jp postmaster.kvh.ne.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (nameserver1.kvh.ne.jp, nameserver2.kvh.ne.jp)

Analysis

Hierarchy

simplex-tech.co.jp is a parent of mx2.simplex-tech.co.jp and www.simplex-tech.co.jp.

Name Servers

Two name servers nameserver1.kvh.ne.jp and nameserver2.kvh.ne.jp handle the delegation for simplex-tech.co.jp.

simplex-tech.co.jp shares the same name server setup as other domains, for example recruit-ms.co.jp, 80.31.114.in-addr.arpa, toshin-sekai.com, 41.167.203.in-addr.arpa and toshin-chugaku.com.

simplex-tech.co.jp at least partially shares name servers with other domains, for example 22.82.193.in-addr.arpa, 212.55.117.in-addr.arpa, e-itoman.co.jp, 107.7.202.in-addr.arpa and itoman-w.com.

Host names with two IP numbers:

nameserver2.kvh.ne.jp points to 2400:1000:4001:ffff:203:167:44:101 and 203.167.44.101.

Host names with one IP number:

nameserver1.kvh.ne.jp points to 61.120.195.101.

Mail Servers

Two mail servers handle simplex-tech.co.jp: mx2.greatsimplex.com and simplextech-co-jp01i.mail.protection.outlook.com.

simplex-tech.co.jp shares at least some mail servers with other domains, for instance simplex-cn.co.jp, simplex-hd.org and simplex.ne.jp.

these mail servers are often used together with simplexcn-co-jp01i.mail.protection.outlook.com, simplexhd-org01i.mail.protection.outlook.com and simplex-ne-jp.mail.protection.outlook.com.

Host names with eight IP numbers:

The host name simplextech-co-jp01i.mail.protection.outlook.com points to: 2a01:111:f403:cc1a::1, 2a01:111:f403:cc1a::2, 2a01:111:f403:cc1f::, 2a01:111:f403:cc1f::1, 52.101.124.5, 52.101.157.10, 52.101.157.11 and 52.101.157.40.

Host names with one IP number:

The host name mx2.greatsimplex.com points to: 61.206.171.227.

simplex-tech.co.jp - robtex.com