networkcheck.de - dns.ninja

`networkcheck.de`

DNSSEC	⚠️ Not signed
A	217.160.223.78^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
		PTR	`clienthosting.eu`
NS	`ns1021.ui-dns.biz` ⭐
		A	2001:8d8:fe:53:0:d9a0:5115:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.biz`
		A	217.160.81.21^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.biz`
NS	`ns1021.ui-dns.com`
		A	2001:8d8:fe:53:0:d9a0:5215:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.com`
		A	217.160.82.21^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.com`
NS	`ns1021.ui-dns.de`
		A	2001:8d8:fe:53:0:d9a0:5015:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.de`
		A	217.160.80.21^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.de`
NS	`ns1021.ui-dns.org`
		A	2001:8d8:fe:53:0:d9a0:5315:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.org`
		A	217.160.83.21^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.org`
MX	`mx00.ionos.de` ⭐
		A	212.227.15.41^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx00.kundenserver.de`
MX	`mx01.ionos.de` ⭐
		A	217.72.192.67^{🇩🇪 IONOS-AS217.72.192.0/20 Web.de}
			PTR	`mx01.kundenserver.de`
TXT	`v=spf1 include:_spf-eu.ionos.com ~all`
SOA	`ns1021.ui-dns.biz`hostmaster@schlund.de 2016-04-28 #3

`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=1781682644

Same first word

networkcheck.com

networkcheck.xyz

networkcheck.de

Similar names

checknetwork.com

DNS History

12 records (7 active, 5 former)

●NSns1021.ui-dns.biz2026-04-15 → 2026-06-17 · 3 obs

○ 2017-02-04 16:29:54
● 2026-04-15 16:41:02
● 2026-06-17 08:16:08

●NSns1021.ui-dns.com2026-04-15 → 2026-06-17 · 3 obs

○ 2017-02-04 16:29:54
● 2026-04-15 16:41:02
● 2026-06-17 08:16:08

●NSns1021.ui-dns.de2026-04-15 → 2026-06-17 · 3 obs

○ 2017-02-04 16:29:54
● 2026-04-15 16:41:02
● 2026-06-17 08:16:08

●NSns1021.ui-dns.org2026-04-15 → 2026-06-17 · 3 obs

○ 2017-02-04 16:29:54
● 2026-04-15 16:41:02
● 2026-06-17 08:16:08

○NSns15.schlund.de2015-05-04 → 2017-02-04 · 4 obs

● 2015-05-04 21:18:42
● 2017-02-04 16:29:54
○ 2026-04-15 16:41:02
○ 2026-06-17 08:16:08

○NSns16.schlund.de2015-05-04 → 2017-02-04 · 4 obs

● 2015-05-04 21:18:42
● 2017-02-04 16:29:54
○ 2026-04-15 16:41:02
○ 2026-06-17 08:16:08

●MXmx00.ionos.de2026-04-15 → 2026-06-17 · 3 obs

○ 2017-02-04 16:29:54
● 2026-04-15 16:41:02
● 2026-06-17 08:16:08

○MXmx00.kundenserver.de2015-05-04 → 2017-02-04 · 4 obs

● 2015-05-04 21:18:42
● 2017-02-04 16:29:54
○ 2026-04-15 16:41:02
○ 2026-06-17 08:16:08

●MXmx01.ionos.de2026-04-15 → 2026-06-17 · 3 obs

○ 2017-02-04 16:29:54
● 2026-04-15 16:41:02
● 2026-06-17 08:16:08

○MXmx01.kundenserver.de2015-05-04 → 2017-02-04 · 4 obs

● 2015-05-04 21:18:42
● 2017-02-04 16:29:54
○ 2026-04-15 16:41:02
○ 2026-06-17 08:16:08

●A217.160.223.782016-05-06 → 2026-06-17 · 3 obs

○ 2016-02-27 18:06:20
● 2016-05-06 05:38:30
● 2026-06-17 08:16:08

○A82.165.59.1092015-05-04 → 2016-02-27 · 4 obs

● 2015-05-04 21:18:42
● 2016-02-27 18:06:20
○ 2016-05-06 05:38:30
○ 2026-06-17 08:16:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
networkcheck.de	ns1021.ui-dns.de, ns1021.ui-dns.biz, ns1021.ui-dns.com, ns1021.ui-dns.org	-

✅ Authoritative Response

Server:217.160.80.21

NS records: ns1021.ui-dns.de, ns1021.ui-dns.biz, ns1021.ui-dns.com, ns1021.ui-dns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for networkcheck.de (unsigned zone)

⏱️ Timing

Total: 860ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.223.78`
NS	4	`ns1021.ui-dns.de, ns1021.ui-dns.biz...`
MX	2	`mx01.ionos.de (pri: 10), mx00.ionos.de (pri: 10)`
TXT	1	`v=spf1 include:_spf-eu.ionos.com ~all`
SOA	1	`ns1021.ui-dns.biz hostmaster.schlund.de`

Analysis

IP Addresses

networkcheck.de points to a single IP number: 217.160.223.78.

Additional host names — simonemaier.de, sossenheimer.info, debretts.net and two others — share IP numbers with networkcheck.de.

Name Servers

networkcheck.de has four authoritative name servers: ns1021.ui-dns.biz, ns1021.ui-dns.com, ns1021.ui-dns.de and ns1021.ui-dns.org.

At least some of networkcheck.de's name servers are shared with other domains, for example cuwest.de, pilatesforum.de, avous2voir.com and two more.

These name servers are frequently paired with the name servers ns1018.ui-dns.biz, ns1042.ui-dns.de, ns1079.ui-dns.biz and two others.

Four hostnames, each resolving to a pair of IP addresses: ns1021.ui-dns.biz directs to 217.160.81.21 and 2001:8d8:fe:53:0:d9a0:5115:100; ns1021.ui-dns.com directs to 217.160.82.21 and 2001:8d8:fe:53:0:d9a0:5215:100; ns1021.ui-dns.de directs to 217.160.80.21 and 2001:8d8:fe:53:0:d9a0:5015:100; ns1021.ui-dns.org directs to 217.160.83.21 and 2001:8d8:fe:53:0:d9a0:5315:100.

Mail Servers

networkcheck.de has two mail servers: mx00.ionos.de and mx01.ionos.de.

networkcheck.de shares the same mail server setup as other domains, including gruene-sparkasse.ch, mangobar.de, travelkirgistan.com and two others.

Each of mx00.ionos.de and mx01.ionos.de has one IP address: mx00.ionos.de uses 212.227.15.41 and mx01.ionos.de uses 217.72.192.67.