`studienkreis.de`

DNSSEC	⚠️ Not signed
A	193.53.251.228^{🇩🇪 MITTWALD-AS193.53.250.0/23 Mittwald CM Service GmbH und Co. KG}
		PTR	`r30801.agenturserver.it`
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	`b.ns14.net`
		A	2001:8d8:fe:53:217:160:81:160^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-ix1.ui-dns.biz`
		A	217.160.81.160^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-ix1.ui-dns.biz`
NS	`c.ns14.net`
		A	2607:f1c0:fe:53:185:132:35:160^{🇺🇸 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-ix1.ui-dns.org`
		A	185.132.35.160^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-ix1.ui-dns.org`
NS	`d.ns14.net`
		A	2607:f1c0:fe:53:185:132:34:160^{🇺🇸 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-ix1.ui-dns.com`
		A	185.132.34.160^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-ix1.ui-dns.com`
MX	`studienkreis-de.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::10^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-dbapr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am3pr04cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::3^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am6pr04cu00303.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::6^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am4pr0401cu00106.inbound.protection.outlook.com`
		A	52.101.68.3^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00403.inbound.protection.outlook.com`
		A	52.101.73.6^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am6pr04cu00306.inbound.protection.outlook.com`
		A	52.101.73.16^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as2pr05cu00100.inbound.protection.outlook.com`
		A	52.101.73.24^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00300.inbound.protection.outlook.com`
TXT	`apple-domain-verification=y7__yADjl0byV9R2eVsFxr5mEy3F4KeDdAH8SfSIVXk`
TXT	`v=spf1 include:spf.protection.outlook.com ip4:185.249.168.192/26 ip4:185.249....`
TXT	`atlassian-sending-domain-verification=34666b63-1f46-4c15-b608-88ceba594a19`
TXT	`MS=ms78139238`
TXT	`google-site-verification=gP5TasUoLMFtqIHDT9dwGnFvEEIEsRrOBQh73RmRyCY`
SOA	`a.ns14.net`webmaster@studienkreis.de 2025-12-04 #16

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1778754562

rank #79927 globally
rank #2833 in the tld
WOT: SAFE (71/100)
📈 Tranco rank: #148,330

Subdomains

mta.studienkreis.de

www.studienkreis.de

lehrer.studienkreis.de

Same first word

studienkreis.at

studienkreis.lu

studienkreis.de

studienkreis.org

studienkreis.ch

Similar names

ekindustries.com

DNS History

7 records (6 active, 1 former)

●NSa.ns14.net2015-07-05 → 2026-05-14 · 2 obs

● 2015-07-05 02:11:26
● 2026-05-14 10:41:34

●NSb.ns14.net2015-07-05 → 2026-05-14 · 2 obs

● 2015-07-05 02:11:26
● 2026-05-14 10:41:34

●NSc.ns14.net2015-07-05 → 2026-05-14 · 2 obs

● 2015-07-05 02:11:26
● 2026-05-14 10:41:34

●NSd.ns14.net2015-07-05 → 2026-05-14 · 2 obs

● 2015-07-05 02:11:26
● 2026-05-14 10:41:34

●MXstudienkreis-de.mail.protection.outlook.com2015-07-05 → 2026-05-14 · 2 obs

● 2015-07-05 02:11:26
● 2026-05-14 10:41:34

●A193.53.251.2282026-02-19 → 2026-05-14 · 3 obs

○ 2016-12-14 12:32:04
● 2026-02-19 06:01:12
● 2026-05-14 10:41:34

○A37.208.111.1012015-07-05 → 2016-12-14 · 4 obs

● 2015-07-05 02:11:26
● 2016-12-14 12:32:04
○ 2026-02-19 06:01:12
○ 2026-05-14 10:41:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
studienkreis.de	c.ns14.net, d.ns14.net, a.ns14.net, b.ns14.net	-

✅ Authoritative Response

Server:185.132.35.160

NS records: c.ns14.net, d.ns14.net, a.ns14.net, b.ns14.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studienkreis.de (unsigned zone)

⏱️ Timing

Total: 816ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`193.53.251.228`
NS	4	`a.ns14.net, d.ns14.net...`
MX	1	`studienkreis-de.mail.protection.outlook.`
TXT	5	`v=spf1 include:spf.protection.outlook.co, MS=ms78139238...`
SOA	1	`a.ns14.net webmaster.studienkreis.de`

Analysis

Hierarchy

studienkreis.de is a parent of mta.studienkreis.de, www.studienkreis.de and lehrer.studienkreis.de.

IP Addresses

studienkreis.de points to a single IP number: 193.53.251.228.

Other host names, for instance www.studienkreis.de, studienkreis.ch, r30801.agenturserver.it, studienkreis.at and nachhilfecenter.com share IP numbers with studienkreis.de.

Name Servers

studienkreis.de is delegated to four name servers: a.ns14.net, b.ns14.net, c.ns14.net and d.ns14.net.

studienkreis.de shares name servers with other domains at least partially, for instance kitabo.de, us-t.net, gokaia.com, nassau-golf.de and msg-global.es.