sei-tec.jp - dns.ninja

`sei-tec.jp`

DNSSEC	⚠️ Not signed
A	2603:c021:8002:ac01:c181:2d1a:caba:1795^{🇯🇵 ORACLE-OCI-318982603:c021:8000::/35}
A	132.226.11.12^{🇯🇵 ORACLE-OCI-31898132.226.0.0/20}
NS	`ns1.p68.dns.oraclecloud.net` ⭐
		A	2600:2000:2100::ca^{🇺🇸 ORACLE-OCI-318982600:2000:2100::/44 Dynamic Network Services, Inc.}
			PTR	`ns1.p202.dns.oraclecloud.net`
		A	108.59.166.202^{🇺🇸 ORACLE-OCI-31898108.59.166.0/23 Dynamic Network Services, Inc.}
			PTR	`ns1.p202.dns.oraclecloud.net`
NS	`ns2.p68.dns.oraclecloud.net`
		A	2600:2000:2110::ca^{🇺🇸 ORACLE-OCI-318982600:2000:2110::/44 Dynamic Network Services, Inc.}
			PTR	`ns2.p202.dns.oraclecloud.net`
		A	108.59.168.202^{🇺🇸 ORACLE-OCI-31898108.59.168.0/23 Dynamic Network Services, Inc.}
			PTR	`ns2.p202.dns.oraclecloud.net`
NS	`ns3.p68.dns.oraclecloud.net`
		A	2600:2000:2120::ca^{🇺🇸 ORACLE-OCI-318982600:2000:2120::/44 Dynamic Network Services, Inc.}
			PTR	`ns3.p202.dns.oraclecloud.net`
		A	108.59.170.202^{🇺🇸 ORACLE-OCI-31898108.59.170.0/23 Dynamic Network Services, Inc.}
			PTR	`ns3.p202.dns.oraclecloud.net`
NS	`ns4.p68.dns.oraclecloud.net`
		A	2600:2000:2130::ca^{🇺🇸 ORACLE-OCI-318982600:2000:2130::/44 Dynamic Network Services, Inc.}
			PTR	`ns4.p202.dns.oraclecloud.net`
		A	108.59.172.202^{🇺🇸 ORACLE-OCI-31898108.59.172.0/23 Dynamic Network Services, Inc.}
			PTR	`ns4.p202.dns.oraclecloud.net`
MX	`mail.sei-tec.jp` ⭐
		A	2603:c021:8002:ac01:f2d3:3745:9975:643^{🇯🇵 ORACLE-OCI-318982603:c021:8000::/35}
		A	158.101.69.33^{🇯🇵 ORACLE-OCI-31898158.101.64.0/19}
			PTR	`mail-nlb.no1-server28.com`
TXT	`MS=ms97461532`
TXT	`v=spf1 include:spf.no1-server28.com +ip4:133.242.156.204 -all`
SOA	`ns1.p68.dns.oraclecloud.net`hostmaster@sei-tec.jp serial=15

`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=1785019502

Previously MX for

sei-tec.jp

Subdomains

mail.sei-tec.jp

Same first word

sei-tec.jp

Similar names

esi-tec.com

c-seite.de

sie-tec.com

eis-tec.de

ic-este.it

ec-site.jp

DNS History

12 records (7 active, 5 former)

○NSns.namedserver.net2015-08-18 → 2017-01-09 · 8 obs

● 2015-08-18 01:18:06
● 2016-01-25 10:21:06
○ 2016-02-09 06:50:52
○ 2016-02-17 17:39:46
● 2016-05-09 13:47:26
● 2017-01-09 14:26:20
○ 2026-05-18 03:04:42
○ 2026-07-25 23:22:16

○NSns.sei-tec.jp2015-08-18 → 2017-01-09 · 9 obs

● 2015-08-18 01:18:06
○ 2015-12-08 08:52:48
○ 2016-01-25 10:21:06
● 2016-02-09 06:50:52
● 2016-02-17 17:39:46
○ 2016-05-09 13:47:26
● 2017-01-09 14:26:20
○ 2026-05-18 03:04:42
○ 2026-07-25 23:22:16

●NSns1.p68.dns.oraclecloud.net2026-05-18 → 2026-07-25 · 3 obs

○ 2017-01-09 14:26:20
● 2026-05-18 03:04:42
● 2026-07-25 23:22:16

○NSns2.namedserver.net2015-12-08 → 2017-01-09 · 9 obs

○ 2015-08-18 01:18:06
● 2015-12-08 08:52:48
● 2016-01-25 10:21:06
○ 2016-02-09 06:50:52
○ 2016-02-17 17:39:46
● 2016-05-09 13:47:26
● 2017-01-09 14:26:20
○ 2026-05-18 03:04:42
○ 2026-07-25 23:22:16

●NSns2.p68.dns.oraclecloud.net2026-05-18 → 2026-07-25 · 3 obs

○ 2017-01-09 14:26:20
● 2026-05-18 03:04:42
● 2026-07-25 23:22:16

●NSns3.p68.dns.oraclecloud.net2026-05-18 → 2026-07-25 · 3 obs

○ 2017-01-09 14:26:20
● 2026-05-18 03:04:42
● 2026-07-25 23:22:16

●NSns4.p68.dns.oraclecloud.net2026-05-18 → 2026-07-25 · 3 obs

○ 2017-01-09 14:26:20
● 2026-05-18 03:04:42
● 2026-07-25 23:22:16

●MXmail.sei-tec.jp2015-08-18 → 2026-07-25 · 2 obs

● 2015-08-18 01:18:06
● 2026-07-25 23:22:16

○MXsei-tec.jp2015-08-18 → 2017-01-09 · 11 obs

● 2015-08-18 01:18:06
○ 2015-12-08 08:52:48
● 2016-01-16 20:23:54
○ 2016-01-20 22:38:14
● 2016-01-25 10:21:06
○ 2016-02-09 06:50:52
○ 2016-02-17 17:39:46
● 2016-05-09 13:47:26
● 2017-01-09 14:26:20
○ 2026-05-18 03:04:42
○ 2026-07-25 23:22:16

○A125.206.117.1072015-08-18 → 2017-01-09 · 4 obs

● 2015-08-18 01:18:06
● 2017-01-09 14:26:20
○ 2026-05-18 03:04:42
○ 2026-07-25 23:22:16

●A132.226.11.122026-05-18 → 2026-07-25 · 3 obs

○ 2017-01-09 14:26:20
● 2026-05-18 03:04:42
● 2026-07-25 23:22:16

●A2603:c021:8002:ac01:c181:2d1a:caba:17952026-05-18 → 2026-07-25 · 3 obs

○ 2017-01-09 14:26:20
● 2026-05-18 03:04:42
● 2026-07-25 23:22:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
sei-tec.jp	ns1.p68.dns.oraclecloud.net, ns2.p68.dns.oraclecloud.net, ns3.p68.dns.oraclecloud.net, ns4.p68.dns.oraclecloud.net	-

✅ Authoritative Response

Server:108.59.172.202

NS records: ns1.p68.dns.oraclecloud.net, ns2.p68.dns.oraclecloud.net, ns3.p68.dns.oraclecloud.net, ns4.p68.dns.oraclecloud.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sei-tec.jp (unsigned zone)

⏱️ Timing

Total: 1718ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`132.226.11.12`
AAAA	1	`2603:c021:8002:ac01:c181:2d1a:caba:1795`
NS	4	`ns3.p68.dns.oraclecloud.net, ns1.p68.dns.oraclecloud.net...`
MX	1	`mail.sei-tec.jp (pri: 10)`
TXT	2	`v=spf1 include:spf.no1-server28.com +ip4, MS=ms97461532`
SOA	1	`ns1.p68.dns.oraclecloud.net hostmaster.s`

Analysis

Hierarchy

sei-tec.jp is a parent domain of mail.sei-tec.jp.

IP Addresses

sei-tec.jp directs to two IP numbers, 132.226.11.12 and 2603:c021:8002:ac01:c181:2d1a:caba:1795

tch-support.co.jp, wako-proof.com, serendip-ginza.com plus two other host names have IP numbers in common with sei-tec.jp.

Name Servers

Four name servers handle the delegation for sei-tec.jp: ns1.p68.dns.oraclecloud.net, ns2.p68.dns.oraclecloud.net, ns3.p68.dns.oraclecloud.net and ns4.p68.dns.oraclecloud.net.

sei-tec.jp shares at least some of its name servers with other domains, including securitasinc.com, venus5.com, ejmengineering.com and two others.

These name servers are frequently seen alongside ehp-eu.int.inf0.net, ns1.p202.dns.oraclecloud.net, ns2.p202.dns.oraclecloud.net and 5 other name servers.

The host names ns1.p68.dns.oraclecloud.net, ns2.p68.dns.oraclecloud.net, ns3.p68.dns.oraclecloud.net and ns4.p68.dns.oraclecloud.net each resolve to two IP addresses: ns1.p68.dns.oraclecloud.net resolves to 108.59.166.202 and 2600:2000:2100::ca; ns2.p68.dns.oraclecloud.net resolves to 108.59.168.202 and 2600:2000:2110::ca; ns3.p68.dns.oraclecloud.net resolves to 108.59.170.202 and 2600:2000:2120::ca; ns4.p68.dns.oraclecloud.net resolves to 108.59.172.202 and 2600:2000:2130::ca.

Mail Servers

sei-tec.jp uses one mail server — mail.sei-tec.jp.

mail.sei-tec.jp points to two IP addresses: 158.101.69.33 and 2603:c021:8002:ac01:f2d3:3745:9975:643.