`d-tu.com`

DNSSEC	⚠️ Not signed
A	157.7.221.171^{🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`host.dream8.com`
NS	`ns1.value-domain.com` ⭐
		A	172.64.52.38^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.52.161^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.value-domain.com`
		A	172.64.53.3^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.53.115^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns3.value-domain.com` ⚠️ Not in zone NS records
		A	172.64.52.38^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.52.161^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`host.d-tu.com` ⭐
		A	133.18.21.200^{🇯🇵 KAGOYAJAPAN133.18.0.0/16 KAGOYA Japan Inc.}
			PTR	`v133-18-21-200.vir.kagoya.net`
TXT	`v=spf1 a:d-tu.com ~all`
SOA	`ns1.value-domain.com`hostmaster@d-tu.com 2020-08-26 #18

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1778646136

Subdomains

host.d-tu.com

Same first word

d-tu.com

Similar names

tu-d.de

td-u.com

u-dt.com

td-u.de

tu-d.com

t-du.com

DNS History

7 records (5 active, 2 former)

●NSns1.value-domain.com2007-08-15 → 2026-05-13 · 2 obs

● 2007-08-15 02:30:26
● 2026-05-13 04:41:22

●NSns2.value-domain.com2007-08-15 → 2026-05-13 · 2 obs

● 2007-08-15 02:30:26
● 2026-05-13 04:41:22

●NSns3.value-domain.com2007-08-15 → 2026-05-13 · 5 obs

● 2007-08-15 02:30:26
○ 2015-08-24 15:24:18
○ 2017-07-22 02:12:18
● 2026-05-13 04:41:20
● 2026-05-13 04:41:22

●MXhost.d-tu.com2007-08-15 → 2026-05-13 · 2 obs

● 2007-08-15 02:30:26
● 2026-05-13 04:41:22

○A153.121.67.582015-08-24 → 2017-07-22 · 5 obs

○ 2007-08-15 02:30:26
● 2015-08-24 15:24:18
● 2017-07-22 02:12:18
○ 2026-05-13 04:41:20
○ 2026-05-13 04:41:22

●A157.7.221.1712026-05-13 → 2026-05-13 · 3 obs

○ 2017-07-22 02:12:18
● 2026-05-13 04:41:20
● 2026-05-13 04:41:22

○A208.71.169.802007-08-15 → 2007-08-15 · 3 obs

● 2007-08-15 02:30:26
○ 2015-08-24 15:24:18
○ 2026-05-13 04:41:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
d-tu.com	ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com	3 records

✅ Authoritative Response

Server:172.64.52.161

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for d-tu.com (unsigned zone)

⏱️ Timing

Total: 625ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.7.221.171`
NS	2	`ns2.value-domain.com, ns1.value-domain.com`
MX	1	`host.d-tu.com (pri: 10)`
TXT	1	`v=spf1 a:d-tu.com ~all`
SOA	1	`ns1.value-domain.com hostmaster.d-tu.com`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com)

Analysis

Hierarchy

host.d-tu.com is a child of d-tu.com.

IP Addresses

d-tu.com resolves to one IP number: 157.7.221.171.

Other host names, for instance dreamskill.com, v157-7-221-171.myvps.jp and host.dream8.com share IP numbers with d-tu.com.

Name Servers

d-tu.com is delegated to three name servers: ns1.value-domain.com, ns2.value-domain.com and ns3.value-domain.com.

d-tu.com at least partially shares name servers with other domains, including awasake.or.jp, ok-skate.com, again-agreement.com, sora-m.jp and o-c-v.net.