`1.sei-world.com`

DNSSEC	⚠️ Not signed
A	202.172.28.34^{🇯🇵 DRNET202.172.24.0/21}
		PTR	`s33.coreserver.jp`

`sei-world.com`

	DNSSEC	⚠️ Not signed
	A	202.172.28.34^{🇯🇵 DRNET202.172.24.0/21}
	NS	`ns1.value-domain.com` ⭐
	NS	`ns2.value-domain.com`
	NS	`ns3.value-domain.com` ⚠️ Not in zone NS records
	NS	`ns4.value-domain.com` ⚠️ Not in zone NS records
	MX	`mail.sei-world.com` ⭐
	MX	`sei-world.com` ⭐
	TXT	`v=spf1 ip4:202.172.28.34 include:mxr.valueserver.jp ~all`
	SOA	`ns1.value-domain.com`hostmaster@sei-world.com 2026-01-03 #0

Same first word

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1.is

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1.ro

1.org.ee

1.cm

1.com.hr

1.day

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1.sc

1.movie

1.com.pl

1.gs

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1.pro

1.blogspot.ae

1.od.ua

1.et

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1.bet

1.s3.amazonaws.com

1.blogspot.be

1.wtf

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1.serveftp.com

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1.s3-website-us-east-1.amazonaws.com

1.help

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1.fashion

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1.city

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DNS History

2 records (1 active, 1 former)

●A202.172.28.342026-03-27 → 2026-04-15 · 2 obs

● 2026-03-27 02:01:58
● 2026-04-15 04:12:32

○A98.124.224.172026-03-27 → 2026-04-15 · 2 obs

○ 2026-03-27 02:01:58
○ 2026-04-15 04:12:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net, e.gtld-servers.net...	-
sei-world.com	ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com	4 records

✅ Authoritative Response

Server:172.64.52.161

NS records: ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sei-world.com (unsigned zone)

⏱️ Timing

Total: 398ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.172.28.34`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com...)

Analysis

IP Addresses

1.sei-world.com resolves to one IP number: 202.172.28.34.

other host names including mail.sato-derma-clinic.jp, e-yome.com, mail.sei-world.com, mag.bigfield.nagoya and mta-sts.with-d.net share IP numbers with 1.sei-world.com.

1.sei-world.com - robtex.com

1.sei-world.com

sei-world.com