siebert.us - dns.ninja

`siebert.us`

DNSSEC	⚠️ Not signed
A	89.31.143.90^{🇩🇪 UDAG89.31.143.0/24}
NS	`ns.udag.de` ⭐
		A	2001:8d8:fe:53:217:160:80:253^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns.udag.de`
		A	217.160.80.253^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns.udag.de`
NS	`ns.udag.net`
		A	2607:f1c0:fe:53:185:132:33:253^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns.udag.net`
		A	185.132.33.253^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns.udag.net`
NS	`ns.udag.org`
		A	2607:f1c0:fe:53:185:132:34:253^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns.udag.org`
		A	185.132.34.253^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns.udag.org`
MX	`mail.siebert-group.com` ⭐
		A	213.135.7.76^{🇩🇪 INTERSAAR-AS213.135.0.0/19 intersaar GmbH Saarbruecken Germany}
			PTR	`mail.siebert-group.com`
TXT	`v=spf1 a:mail.siebert-group.com a:vm-kas-smgw.eppelborn.siebert-group.com ip4...`
SOA	`ns.udag.de`hostmaster@united-domains.de 2024-09-20 #2

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1781509990

Subdomains

www.siebert.us

Same first word

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betries.com

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esbriet.pt

DNS History

13 records (5 active, 8 former)

●NSns.udag.de2015-10-24 → 2026-06-15 · 3 obs

○ 2015-06-04 18:50:12
● 2015-10-24 10:15:42
● 2026-06-15 08:02:52

●NSns.udag.net2015-10-24 → 2026-06-15 · 3 obs

○ 2015-06-04 18:50:12
● 2015-10-24 10:15:42
● 2026-06-15 08:02:52

●NSns.udag.org2015-10-24 → 2026-06-15 · 3 obs

○ 2015-06-04 18:50:12
● 2015-10-24 10:15:42
● 2026-06-15 08:02:52

○NSns1.intersaar.de2015-06-04 → 2015-06-04 · 3 obs

● 2015-06-04 18:50:12
○ 2015-10-24 10:15:42
○ 2026-06-15 08:02:52

○NSns2.intersaar.de2015-06-04 → 2015-06-04 · 3 obs

● 2015-06-04 18:50:12
○ 2015-10-24 10:15:42
○ 2026-06-15 08:02:52

○NSns3.intersaar.de2015-06-04 → 2015-06-04 · 3 obs

● 2015-06-04 18:50:12
○ 2015-10-24 10:15:42
○ 2026-06-15 08:02:52

●MXmail.siebert-group.com2015-10-24 → 2026-06-15 · 3 obs

○ 2015-06-04 18:50:12
● 2015-10-24 10:15:42
● 2026-06-15 08:02:52

○MXmx1.intersaar.de2015-06-04 → 2015-06-04 · 3 obs

● 2015-06-04 18:50:12
○ 2015-10-24 10:15:42
○ 2026-06-15 08:02:52

○MXmx2.intersaar.de2015-06-04 → 2015-06-04 · 3 obs

● 2015-06-04 18:50:12
○ 2015-10-24 10:15:42
○ 2026-06-15 08:02:52

○A213.135.13.1702015-06-04 → 2015-06-04 · 3 obs

● 2015-06-04 18:50:12
○ 2015-10-24 10:15:42
○ 2026-06-15 08:02:52

○A89.31.143.12015-10-24 → 2015-11-02 · 5 obs

○ 2015-06-04 18:50:12
● 2015-10-24 10:15:42
● 2015-11-02 05:26:24
○ 2016-01-27 01:16:14
○ 2026-06-15 08:02:52

○A89.31.143.162016-01-27 → 2017-01-14 · 5 obs

○ 2015-11-02 05:26:24
● 2016-01-27 01:16:14
● 2017-01-14 12:48:02
○ 2026-03-09 01:56:42
○ 2026-06-15 08:02:52

●A89.31.143.902026-03-09 → 2026-06-15 · 3 obs

○ 2017-01-14 12:48:02
● 2026-03-09 01:56:42
● 2026-06-15 08:02:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...	16 records
siebert.us	ns.udag.net, ns.udag.de, ns.udag.org	-

✅ Authoritative Response

Server:185.132.33.253

NS records: ns.udag.net, ns.udag.de, ns.udag.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for siebert.us (unsigned zone)

⏱️ Timing

Total: 1137ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.31.143.90`
NS	3	`ns.udag.org, ns.udag.net...`
MX	1	`mail.siebert-group.com (pri: 10)`
TXT	1	`v=spf1 a:mail.siebert-group.com a:vm-kas`
SOA	1	`ns.udag.de hostmaster.united-domains.de`

📌 Glue Records Collected

Total: 16

In-bailiwick: 16 (b.cctld.us, f.cctld.us, k.cctld.us...)

Analysis

Hierarchy

www.siebert.us is delegated beneath siebert.us.

IP Addresses

siebert.us has exactly one IP address — 89.31.143.90.

ultra-height.com, magicx.fr, granit.discount plus two other host names have IP numbers in common with siebert.us.

Name Servers

siebert.us is served by three name servers: ns.udag.de, ns.udag.net and ns.udag.org.

There is at least partial name server overlap between siebert.us and other domains — rizbizpro.com, dielernfabrik.net, real-estate-dream.com and two more among them.

The hostnames ns.udag.de, ns.udag.net and ns.udag.org each direct to two IP addresses — ns.udag.de to 217.160.80.253 and 2001:8d8:fe:53:217:160:80:253, ns.udag.net to 185.132.33.253 and 2607:f1c0:fe:53:185:132:33:253, and ns.udag.org to 185.132.34.253 and 2607:f1c0:fe:53:185:132:34:253.

Mail Servers

siebert.us uses one mail server — mail.siebert-group.com.

The mail server setup of siebert.us matches that of other domains such as siebert.si, siebert.solutions, siebert.ro and two others.

siebert.us and other domains — lrd.at for instance — share at least some mail servers.

These mail servers tend to be used in conjunction with the mail servers mail-gw.siebert-group.com.

mail.siebert-group.com resolves to 213.135.7.76 and no other IP number.