`rootserver-seminar.com`

DNSSEC	⚠️ Not signed
A	85.214.248.124^{🇩🇪 STRATO85.214.0.0/15 AG}
		PTR	`web.hueddersen.de`
NS	`a.ns14.net` ⭐
		A	2001:8d8:fe:53:217:160:80:160^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-ix1.ui-dns.de`
		A	217.160.80.160^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-ix1.ui-dns.de`
NS	`ns1.hueddersen.de`
		A	62.116.169.136^{🇩🇪 INTERNETX-AS62.116.160.0/19 INTERNETX-MUC-2}
			PTR	`ns1.hueddersen.de`
NS	`ns3.hueddersen.de`
		A	217.160.113.37^{🇩🇪 IONOS-AS217.160.113.0/24 IONOS-AND-INTERNETX}
			PTR	`b.customer-auth.net`
NS	`ns4.hueddersen.de`
		A	89.146.248.4^{🇩🇪 INTERNET_AG89.146.248.0/24}
			PTR	`c.customer-auth.net`
NS	`ns8.hueddersen.de` ⚠️ Not in zone NS records
NS	`web.hueddersen.de` ⚠️ Not in parent delegation
		A	85.214.248.124^{🇩🇪 STRATO85.214.0.0/15 AG}
			PTR	`web.hueddersen.de`
MX	`mail.rootserver-seminar.com` ⭐
		A	85.214.248.124^{🇩🇪 STRATO85.214.0.0/15 AG}
			PTR	`web.hueddersen.de`
TXT	`v=spf1 a mx ptr a:ns2.hueddersen.de a:ns5.hueddersen.de a:ns6.hueddersen.de a...`
SOA	`a.ns14.net`do-not-reply@rootserver-seminar.com 2026-01-26 #1

`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=1778384366

Subdomains

mail.rootserver-seminar.com

Same first word

rootserver-seminar.com

DNS History

10 records (8 active, 2 former)

●NSa.ns14.net2026-03-26 → 2026-05-10 · 3 obs

○ 2015-08-20 09:12:56
● 2026-03-26 23:01:12
● 2026-05-10 03:45:24

●NSns1.hueddersen.de2015-08-20 → 2026-05-10 · 2 obs

● 2015-08-20 09:12:56
● 2026-05-10 03:45:24

○NSns1.oha.net2015-08-20 → 2026-03-26 · 4 obs

● 2015-08-20 09:12:56
● 2026-03-26 23:01:12
○ 2026-05-10 03:45:22
○ 2026-05-10 03:45:24

●NSns3.hueddersen.de2015-08-20 → 2026-05-10 · 2 obs

● 2015-08-20 09:12:56
● 2026-05-10 03:45:24

●NSns4.hueddersen.de2015-08-20 → 2026-05-10 · 2 obs

● 2015-08-20 09:12:56
● 2026-05-10 03:45:24

●NSns8.hueddersen.de2015-08-20 → 2026-05-10 · 2 obs

● 2015-08-20 09:12:56
● 2026-05-10 03:45:24

●NSweb.hueddersen.de2026-05-10 → 2026-05-10 · 3 obs

○ 2026-03-26 23:01:12
● 2026-05-10 03:45:22
● 2026-05-10 03:45:24

●MXmail.rootserver-seminar.com2015-08-20 → 2026-05-10 · 2 obs

● 2015-08-20 09:12:56
● 2026-05-10 03:45:24

○A81.169.254.132015-08-20 → 2018-08-17 · 4 obs

● 2015-08-20 09:12:56
● 2018-08-17 23:21:20
○ 2026-03-26 23:01:12
○ 2026-05-10 03:45:24

●A85.214.248.1242026-03-26 → 2026-05-10 · 3 obs

○ 2018-08-17 23:21:20
● 2026-03-26 23:01:12
● 2026-05-10 03:45:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
rootserver-seminar.com	ns1.hueddersen.de, ns3.hueddersen.de, ns4.hueddersen.de, ns8.hueddersen.de	-

✅ Authoritative Response

Server:89.146.248.4

NS records: ns1.hueddersen.de, ns3.hueddersen.de, ns4.hueddersen.de, ns8.hueddersen.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rootserver-seminar.com (unsigned zone)

⏱️ Timing

Total: 1422ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`85.214.248.124`
NS	4	`ns3.hueddersen.de, ns4.hueddersen.de...`
MX	1	`mail.rootserver-seminar.com (pri: 10)`
TXT	1	`v=spf1 a mx ptr a:ns2.hueddersen.de a:ns`
SOA	1	`a.ns14.net do-not-reply.rootserver-semin`

Analysis

Hierarchy

The parent of mail.rootserver-seminar.com is rootserver-seminar.com.

IP Addresses

rootserver-seminar.com points to an IP address: 85.214.248.124.

other host names include domain-one.de, mail.wunschprovider.de, mail.kleinod-shop.de, mail.internetschluessel.de and mail.postcard-service.de; they share IP numbers with rootserver-seminar.com.

Name Servers

rootserver-seminar.com delegates to six name servers: ns1.hueddersen.de, ns3.hueddersen.de, ns4.hueddersen.de, ns8.hueddersen.de, web.hueddersen.de and a.ns14.net.

rootserver-seminar.com at least partially shares name servers with other domains, for instance gemgas.com, xn--eventdj-dsseldorf-b3b.de, gaz-com.de, ami-ko.com and defj.com.

These name servers are commonly used with the following: b.ns14.net, c.ns14.net, d.ns14.net and ns1.oha.net.

Host names with two IP numbers: a.ns14.net points to 2001:8d8:fe:53:217:160:80:160 and 217.160.80.160.

Host names with one IP number: ns1.hueddersen.de points to 62.116.169.136; ns3.hueddersen.de points to 217.160.113.37; ns4.hueddersen.de points to 89.146.248.4; web.hueddersen.de points to 85.214.248.124.

Mail Servers

rootserver-seminar.com is handled by a single mail server, mail.rootserver-seminar.com.

The host name mail.rootserver-seminar.com points to IP 85.214.248.124.

rootserver-seminar.com - robtex.com