`dk-institut.de`

DNSSEC	⚠️ Not signed
A	2001:8d8:100f:f000::282^{🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910}
		PTR	`2001-08d8-100f-f000-0000-0000-0000-0282.elastic-ssl.ui-r.com`
A	217.160.0.117^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
NS	`ns1023.ui-dns.de` ⭐
		A	2001:8d8:fe:53:0:d9a0:5017:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1023.ui-dns.de`
		A	217.160.80.23^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1023.ui-dns.de`
NS	`ns1023.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:5117:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1023.ui-dns.biz`
		A	217.160.81.23^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1023.ui-dns.biz`
NS	`ns1023.ui-dns.com`
		A	2001:8d8:fe:53:0:d9a0:5217:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1023.ui-dns.com`
		A	217.160.82.23^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1023.ui-dns.com`
NS	`ns1023.ui-dns.org`
		A	2001:8d8:fe:53:0:d9a0:5317:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1023.ui-dns.org`
		A	217.160.83.23^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1023.ui-dns.org`
MX	`dkinstitut-de0e.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca27::^{🇩🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-beup281cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca2d::^{🇩🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-fr5p281cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:ca2d::1^{🇩🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-fr4p281cu03101.inbound.protection.outlook.com`
		A	2a01:111:f403:ca2d::2^{🇩🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-fr6p281cu00202.inbound.protection.outlook.com`
		A	52.101.168.0^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-beup281cu00100.inbound.protection.outlook.com`
		A	52.101.170.0^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-fr5p281cu00500.inbound.protection.outlook.com`
		A	52.101.170.1^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-fr4p281cu03101.inbound.protection.outlook.com`
		A	52.101.170.2^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-fr6p281cu00202.inbound.protection.outlook.com`
TXT	`MS=ms23474415`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`brevo-code:9f5c18bab3eb74c59bdc1c8a62a05a91`
SOA	`ns1023.ui-dns.de`hostmaster@1und1.de 2017-05-16 #33

`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=1771291602

DNS History

15 records (7 active, 8 former)

●NSns1023.ui-dns.biz2020-02-12 → 2026-02-26 · 3 obs

○ 2017-02-20 13:59:08
● 2020-02-12 20:43:24
● 2026-02-26 21:57:04

●NSns1023.ui-dns.com2020-02-12 → 2026-02-26 · 3 obs

○ 2017-02-20 13:59:08
● 2020-02-12 20:43:24
● 2026-02-26 21:57:04

●NSns1023.ui-dns.de2020-02-12 → 2026-02-26 · 3 obs

○ 2017-02-20 13:59:08
● 2020-02-12 20:43:24
● 2026-02-26 21:57:04

●NSns1023.ui-dns.org2020-02-12 → 2026-02-26 · 3 obs

○ 2017-02-20 13:59:08
● 2020-02-12 20:43:24
● 2026-02-26 21:57:04

○NSns65.1und1.de2015-08-07 → 2017-02-20 · 4 obs

● 2015-08-07 14:29:58
● 2017-02-20 13:59:08
○ 2020-02-12 20:43:24
○ 2026-02-26 21:57:04

○NSns66.1und1.de2015-08-07 → 2017-02-20 · 4 obs

● 2015-08-07 14:29:58
● 2017-02-20 13:59:08
○ 2020-02-12 20:43:24
○ 2026-02-26 21:57:04

●MXdkinstitut-de0e.mail.protection.outlook.com2026-02-26 → 2026-02-26 · 3 obs

○ 2020-02-12 20:43:24
● 2026-02-26 21:57:02
● 2026-02-26 21:57:04

○MXmx00.kundenserver.de2015-08-07 → 2020-02-12 · 4 obs

● 2015-08-07 14:29:58
● 2020-02-12 20:43:24
○ 2026-02-26 21:57:02
○ 2026-02-26 21:57:04

○MXmx01.kundenserver.de2015-08-07 → 2020-02-12 · 4 obs

● 2015-08-07 14:29:58
● 2020-02-12 20:43:24
○ 2026-02-26 21:57:02
○ 2026-02-26 21:57:04

○A2001:8d8:1000:6097:517c:71c4:a7ed:80022015-08-07 → 2016-07-08 · 4 obs

● 2015-08-07 14:29:58
● 2016-07-08 22:59:58
○ 2017-02-20 13:59:08
○ 2026-02-26 21:57:04

○A2001:8d8:1000:6097:57f1:c9fa:2179:58192017-02-20 → 2017-02-20 · 4 obs

○ 2016-07-08 22:59:58
● 2017-02-20 13:59:08
○ 2020-02-12 20:43:24
○ 2026-02-26 21:57:04

●A2001:8d8:100f:f000::2822020-02-12 → 2026-02-26 · 3 obs

○ 2017-02-20 13:59:08
● 2020-02-12 20:43:24
● 2026-02-26 21:57:04

●A217.160.0.1172020-02-12 → 2026-02-26 · 3 obs

○ 2017-02-20 13:59:08
● 2020-02-12 20:43:24
● 2026-02-26 21:57:04

○A217.160.122.1032017-02-20 → 2017-02-20 · 4 obs

○ 2016-07-08 22:59:58
● 2017-02-20 13:59:08
○ 2020-02-12 20:43:24
○ 2026-02-26 21:57:04

○A82.165.70.1022015-08-07 → 2016-07-08 · 4 obs

● 2015-08-07 14:29:58
● 2016-07-08 22:59:58
○ 2017-02-20 13:59:08
○ 2026-02-26 21:57:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
dk-institut.de	ns1023.ui-dns.de, ns1023.ui-dns.com, ns1023.ui-dns.biz, ns1023.ui-dns.org	-

✅ Authoritative Response

Server: 217.160.83.23

NS records: ns1023.ui-dns.de, ns1023.ui-dns.com, ns1023.ui-dns.biz, ns1023.ui-dns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dk-institut.de (unsigned zone)

⏱️ Timing

Total: 984ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.0.117`
AAAA	1	`2001:8d8:100f:f000::282`
NS	4	`ns1023.ui-dns.de, ns1023.ui-dns.org...`
MX	1	`dkinstitut-de0e.mail.protection.outlook.`
TXT	3	`brevo-code:9f5c18bab3eb74c59bdc1c8a62a05, v=spf1 include:spf.protection.outlook.co...`
SOA	1	`ns1023.ui-dns.de hostmaster.1und1.de`

AI analysis

dk-institut.de points to two IP numbers: 2001:8d8:100f:f000::282 and 217.160.0.117.

Other host names, for instance bronzedore.com, spargler.com, trauma.education, aquacontur.de and chabad.co.uk share IP numbers with dk-institut.de.

dk-institut.de is delegated to four name servers: ns1023.ui-dns.biz, ns1023.ui-dns.com, ns1023.ui-dns.de and ns1023.ui-dns.org.

dk-institut.de shares name servers with other domains at least partially, for instance pts-rk.de, prfc.es, imena.de, smp-neuffen.de and aschmieder.de.