copen.de - dns.ninja

`copen.de`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:9a07^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:439^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.4.57^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.154.7^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`coraline.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2658^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coraline.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c258^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`coraline.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2258^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`coraline.ns.cloudflare.com`
		A	108.162.194.88^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coraline.ns.cloudflare.com`
		A	162.159.38.88^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coraline.ns.cloudflare.com`
		A	172.64.34.88^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coraline.ns.cloudflare.com`
NS	`langston.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cfc^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`langston.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fc^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`langston.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fc^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`langston.ns.cloudflare.com`
		A	108.162.195.252^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`langston.ns.cloudflare.com`
		A	162.159.44.252^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`langston.ns.cloudflare.com`
		A	172.64.35.252^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`langston.ns.cloudflare.com`
MX	`mx00.ionos.de` ⭐
		A	212.227.15.41^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx00.kundenserver.de`
		A	212.227.15.171^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx00.kundenserver.de`
MX	`mx01.ionos.de` ⭐
		A	212.227.15.188^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx01.kundenserver.de`
		A	217.72.192.67^{🇩🇪 IONOS-AS217.72.192.0/20 Web.de}
			PTR	`mx01.kundenserver.de`
TXT	`google-site-verification=5uRLzSAtSOSO_tW2682nnCPfHX26VnfzcEoec-Wvxqw`
TXT	`v=spf1 include:_spf.perfora.net include:_spf-eu.ionos.com include:_spf.kunden...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.4.57, 172.67.154.7
		IPv6 hints	2606:4700:3031::ac43:9a07, 2606:4700:3033::6815:439
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=252, name=cloudflare-ech.com
SOA	`coraline.ns.cloudflare.com`dns@cloudflare.com serial=2406347770

`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=1785199905

Same first word

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openc.com

DNS History

17 records (8 active, 9 former)

●NScoraline.ns.cloudflare.com2026-02-26 → 2026-07-28 · 3 obs

○ 2016-12-11 13:13:04
● 2026-02-26 16:30:22
● 2026-07-28 00:54:26

●NSlangston.ns.cloudflare.com2026-02-26 → 2026-07-28 · 3 obs

○ 2016-12-11 13:13:04
● 2026-02-26 16:30:22
● 2026-07-28 00:54:26

○NSns65.1und1.de2015-08-30 → 2016-12-11 · 4 obs

● 2015-08-30 16:46:18
● 2016-12-11 13:13:04
○ 2026-02-26 16:30:22
○ 2026-07-28 00:54:26

○NSns66.1und1.de2015-08-30 → 2016-12-11 · 4 obs

● 2015-08-30 16:46:18
● 2016-12-11 13:13:04
○ 2026-02-26 16:30:22
○ 2026-07-28 00:54:26

●MXmx00.ionos.de2026-02-26 → 2026-07-28 · 3 obs

○ 2016-12-11 13:13:04
● 2026-02-26 16:30:22
● 2026-07-28 00:54:26

○MXmx00.kundenserver.de2015-08-30 → 2016-12-11 · 4 obs

● 2015-08-30 16:46:18
● 2016-12-11 13:13:04
○ 2026-02-26 16:30:22
○ 2026-07-28 00:54:26

●MXmx01.ionos.de2026-02-26 → 2026-07-28 · 3 obs

○ 2016-12-11 13:13:04
● 2026-02-26 16:30:22
● 2026-07-28 00:54:26

○MXmx01.kundenserver.de2015-08-30 → 2016-12-11 · 4 obs

● 2015-08-30 16:46:18
● 2016-12-11 13:13:04
○ 2026-02-26 16:30:22
○ 2026-07-28 00:54:26

●A104.21.4.572026-02-26 → 2026-07-28 · 11 obs

○ 2016-12-11 13:13:04
● 2026-02-26 16:30:22
● 2026-02-27 17:46:10
○ 2026-03-01 04:49:28
● 2026-03-04 13:19:28
○ 2026-03-04 13:57:10
● 2026-03-09 19:57:56
● 2026-03-11 11:17:48
○ 2026-03-18 03:08:00
● 2026-03-27 12:56:30
● 2026-07-28 00:54:26

○A172.64.80.12026-03-01 → 2026-03-18 · 9 obs

○ 2026-02-27 17:46:10
● 2026-03-01 04:49:28
○ 2026-03-04 13:19:28
● 2026-03-04 13:57:10
○ 2026-03-09 19:57:56
○ 2026-03-11 11:17:48
● 2026-03-18 03:08:00
○ 2026-03-27 12:56:30
○ 2026-07-28 00:54:26

●A172.67.154.72026-02-26 → 2026-07-28 · 11 obs

○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-04 → 2026-03-04 · 4 obs

○ 2026-03-04 13:19:28
● 2026-03-04 13:57:10
○ 2026-03-09 19:57:56
○ 2026-07-28 00:54:26

●A2606:4700:3031::ac43:9a072026-07-10 → 2026-07-28 · 3 obs

○ 2026-03-27 12:56:30
● 2026-07-10 11:34:50
● 2026-07-28 00:54:26

●A2606:4700:3033::6815:4392026-07-10 → 2026-07-28 · 3 obs

○ 2026-03-27 12:56:30
● 2026-07-10 11:34:50
● 2026-07-28 00:54:26

○A2606:4700:3034::6815:4392026-02-26 → 2026-03-09 · 7 obs

○ 2016-12-11 13:13:04
● 2026-02-26 16:30:22
● 2026-03-04 13:19:28
○ 2026-03-04 13:57:10
● 2026-03-09 19:57:56
○ 2026-07-10 11:34:50
○ 2026-07-28 00:54:26

○A2606:4700:3036::ac43:9a072026-02-26 → 2026-03-09 · 7 obs

○ 2016-12-11 13:13:04
● 2026-02-26 16:30:22
● 2026-03-04 13:19:28
○ 2026-03-04 13:57:10
● 2026-03-09 19:57:56
○ 2026-07-10 11:34:50
○ 2026-07-28 00:54:26

○A46.245.177.1172015-08-30 → 2016-12-11 · 4 obs

● 2015-08-30 16:46:18
● 2016-12-11 13:13:04
○ 2026-02-26 16:30:22
○ 2026-07-28 00:54:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
copen.de	coraline.ns.cloudflare.com, langston.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.88

NS records: coraline.ns.cloudflare.com, langston.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for copen.de (unsigned zone)

⏱️ Timing

Total: 1114ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.4.57, 172.67.154.7`
AAAA	2	`2606:4700:3031::ac43:9a07, 2606:4700:3033::6815:439`
NS	2	`coraline.ns.cloudflare.com, langston.ns.cloudflare.com`
MX	2	`mx00.ionos.de (pri: 10), mx01.ionos.de (pri: 10)`
TXT	2	`google-site-verification=5uRLzSAtSOSO_tW, v=spf1 include:_spf.perfora.net include:`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`coraline.ns.cloudflare.com dns.cloudflar`

Analysis

IP Addresses

copen.de resolves to four IP addresses: 104.21.4.57, 172.67.154.7, 2606:4700:3031::ac43:9a07 and 2606:4700:3033::6815:439.

infocheckdata.com, www.amigaopetshop.com.br, chuansuoacc.cn and two other host names share IP numbers with copen.de.

Name Servers

DNS delegation for copen.de points to two name servers: coraline.ns.cloudflare.com and langston.ns.cloudflare.com.

copen.de uses the same name servers as several other domains — among them courtroomsciences.com, macelectronics.net, mgccasinos.com and two more.

copen.de has at least partial name server overlap with other domains, such as luattamphuocthinh.vn, untitlednow.com, homeinleessummit.com and two others.

It is common to find these name servers paired with the name servers alexandra.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

coraline.ns.cloudflare.com has IP addresses 108.162.194.88, 162.159.38.88 and 172.64.34.88, plus 3 other.

langston.ns.cloudflare.com has IP addresses 108.162.195.252, 162.159.44.252 and 172.64.35.252, plus 3 other.

Mail Servers

Mail for copen.de is handled by two mail servers — mx00.ionos.de and mx01.ionos.de.

copen.de uses an identical mail server configuration to several other domains — among them zuschnitt.eu, abricht.com, aktiv-sein.de and two more.

mx00.ionos.de directs to 212.227.15.41 and 212.227.15.171. mx01.ionos.de directs to 212.227.15.188 and 217.72.192.67. Each host name carries two IP addresses.