kcore.de - dns.ninja

`kcore.de`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:c738^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:347d^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.52.125^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.199.56^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`malcolm.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c51^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`malcolm.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c351^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`malcolm.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2351^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`malcolm.ns.cloudflare.com`
		A	108.162.195.81^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`malcolm.ns.cloudflare.com`
		A	162.159.44.81^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`malcolm.ns.cloudflare.com`
		A	172.64.35.81^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`malcolm.ns.cloudflare.com`
NS	`samara.ns.cloudflare.com`
		A	2606:4700:50::a29f:26a0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`samara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2a0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`samara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22a0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`samara.ns.cloudflare.com`
		A	108.162.194.160^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`samara.ns.cloudflare.com`
		A	162.159.38.160^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`samara.ns.cloudflare.com`
		A	172.64.34.160^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`samara.ns.cloudflare.com`
MX	`arrow-relay.mxrouting.net` ⭐
		A	45.43.208.31^{🇺🇸 QUICKPACKET45.43.208.0/24 QuickPacket LLC}
			PTR	`arrow.mxrouting.net`
MX	`arrow.mxrouting.net`⁽²⁰⁾
		A	45.43.208.31^{🇺🇸 QUICKPACKET45.43.208.0/24 QuickPacket LLC}
			PTR	`arrow.mxrouting.net`
TXT	`v=spf1 include:mxlogin.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.52.125, 172.67.199.56
		IPv6 hints	2606:4700:3031::ac43:c738, 2606:4700:3035::6815:347d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=93, name=cloudflare-ech.com
SOA	`malcolm.ns.cloudflare.com`dns@cloudflare.com serial=2404038324

`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=1781734025

Subdomains

www.kcore.de

Same first word

kcore.com

kcore.sakura.ne.jp

kcore.cn

kcore.net

kcore.de

kcore.org

kcore.it

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corke.me

creko.de

erock.cl

reokc.org

ocker.com

recko.in

kocer.eu

recko.ai

rocek.info

ercko.ru

cerko.com

coker.com.tw

oreck.de

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coker.cn

korec.cz

croke.net

corek.it

erkco.com.mx

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DNS History

24 records (8 active, 16 former)

●NSmalcolm.ns.cloudflare.com2026-03-11 → 2026-06-17 · 3 obs

○ 2026-02-18 09:43:34
● 2026-03-11 06:45:26
● 2026-06-17 22:14:54

○NSns11.realtime.at2026-02-18 → 2026-02-18 · 5 obs

○ 2017-03-23 00:06:24
● 2026-02-18 09:05:34
● 2026-02-18 09:43:34
○ 2026-03-11 06:45:26
○ 2026-06-17 22:14:54

○NSns12.realtime.at2026-02-18 → 2026-02-18 · 5 obs

○ 2017-03-23 00:06:24
● 2026-02-18 09:05:34
● 2026-02-18 09:43:34
○ 2026-03-11 06:45:26
○ 2026-06-17 22:14:54

○NSrobotns2.second-ns.de2015-06-11 → 2017-03-23 · 4 obs

● 2015-06-11 13:41:46
● 2017-03-23 00:06:24
○ 2026-02-18 09:05:34
○ 2026-06-17 22:14:54

○NSrobotns3.second-ns.com2015-06-11 → 2017-03-23 · 4 obs

● 2015-06-11 13:41:46
● 2017-03-23 00:06:24
○ 2026-02-18 09:05:34
○ 2026-06-17 22:14:54

●NSsamara.ns.cloudflare.com2026-03-11 → 2026-06-17 · 3 obs

○ 2026-02-18 09:43:34
● 2026-03-11 06:45:26
● 2026-06-17 22:14:54

○NStalos.kcore.de2015-06-11 → 2016-02-05 · 4 obs

● 2015-06-11 13:41:46
● 2016-02-05 06:57:50
○ 2016-07-07 08:27:50
○ 2026-06-17 22:14:54

○NSvetaskyn.kcore.de2016-07-07 → 2017-03-23 · 5 obs

○ 2016-02-05 06:57:50
● 2016-07-07 08:27:50
● 2017-03-23 00:06:24
○ 2026-02-18 09:05:34
○ 2026-06-17 22:14:54

●MXarrow-relay.mxrouting.net2026-03-11 → 2026-06-17 · 3 obs

○ 2026-02-18 09:05:34
● 2026-03-11 06:45:26
● 2026-06-17 22:14:54

●MXarrow.mxrouting.net2026-03-11 → 2026-06-17 · 3 obs

○ 2026-02-18 09:05:34
● 2026-03-11 06:45:26
● 2026-06-17 22:14:54

○MXtalos.kcore.de2015-06-11 → 2016-02-05 · 4 obs

● 2015-06-11 13:41:46
● 2016-02-05 06:57:50
○ 2016-07-07 08:27:50
○ 2026-06-17 22:14:54

○MXvetaskyn.kcore.de2016-07-07 → 2017-03-23 · 5 obs

○ 2016-02-05 06:57:50
● 2016-07-07 08:27:50
● 2017-03-23 00:06:24
○ 2026-02-18 09:05:34
○ 2026-06-17 22:14:54

●A104.21.52.1252026-03-11 → 2026-06-17 · 6 obs

○ 2026-02-18 09:43:34
● 2026-03-11 06:45:26
● 2026-03-12 00:42:20
○ 2026-03-21 16:40:06
● 2026-04-14 05:40:24
● 2026-06-17 22:14:54

●A172.67.199.562026-03-11 → 2026-06-17 · 6 obs

○ 2026-02-18 09:43:34
● 2026-03-11 06:45:26
● 2026-03-12 00:42:20
○ 2026-03-21 16:40:06
● 2026-04-14 05:40:24
● 2026-06-17 22:14:54

○A188.114.96.02026-03-21 → 2026-03-21 · 4 obs

○ 2026-03-12 00:42:20
● 2026-03-21 16:40:06
○ 2026-04-14 05:40:24
○ 2026-06-17 22:14:54

○A188.114.97.02026-03-21 → 2026-03-21 · 4 obs

○ 2026-03-12 00:42:20
● 2026-03-21 16:40:06
○ 2026-04-14 05:40:24
○ 2026-06-17 22:14:54

●A2606:4700:3031::ac43:c7382026-03-11 → 2026-06-17 · 6 obs

○ 2026-02-18 09:43:34
● 2026-03-11 06:45:26
● 2026-03-12 00:42:20
○ 2026-03-21 16:40:06
● 2026-04-14 05:40:24
● 2026-06-17 22:14:54

●A2606:4700:3035::6815:347d2026-03-11 → 2026-06-17 · 6 obs

○ 2026-02-18 09:43:34
● 2026-03-11 06:45:26
● 2026-03-12 00:42:20
○ 2026-03-21 16:40:06
● 2026-04-14 05:40:24
● 2026-06-17 22:14:54

○A2a01:4f8:160:8082::42026-02-18 → 2026-02-18 · 5 obs

○ 2017-03-23 00:06:24
● 2026-02-18 09:05:34
● 2026-02-18 09:43:34
○ 2026-03-11 06:45:26
○ 2026-06-17 22:14:54

○A2a01:4f8:c17:3002::22016-07-07 → 2017-03-23 · 4 obs

● 2016-07-07 08:27:50
● 2017-03-23 00:06:24
○ 2026-02-18 09:05:34
○ 2026-06-17 22:14:54

○A2a06:98c1:3120::2026-03-21 → 2026-03-21 · 4 obs

○ 2026-03-12 00:42:20
● 2026-03-21 16:40:06
○ 2026-04-14 05:40:24
○ 2026-06-17 22:14:54

○A2a06:98c1:3121::2026-03-21 → 2026-03-21 · 4 obs

○ 2026-03-12 00:42:20
● 2026-03-21 16:40:06
○ 2026-04-14 05:40:24
○ 2026-06-17 22:14:54

○A5.9.10.752026-02-18 → 2026-02-18 · 5 obs

○ 2017-03-23 00:06:24
● 2026-02-18 09:05:34
● 2026-02-18 09:43:34
○ 2026-03-11 06:45:26
○ 2026-06-17 22:14:54

○A78.47.218.2512016-07-07 → 2017-03-23 · 4 obs

● 2016-07-07 08:27:50
● 2017-03-23 00:06:24
○ 2026-02-18 09:05:34
○ 2026-06-17 22:14:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
kcore.de	malcolm.ns.cloudflare.com, samara.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.160

NS records: malcolm.ns.cloudflare.com, samara.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kcore.de (unsigned zone)

⏱️ Timing

Total: 1076ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.52.125, 172.67.199.56`
AAAA	2	`2606:4700:3035::6815:347d, 2606:4700:3031::ac43:c738`
NS	2	`malcolm.ns.cloudflare.com, samara.ns.cloudflare.com`
MX	2	`arrow.mxrouting.net (pri: 10), arrow-relay.mxrouting.net (pri: 20)`
TXT	1	`v=spf1 include:mxlogin.com -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`malcolm.ns.cloudflare.com dns.cloudflare`

Analysis

Hierarchy

www.kcore.de is delegated beneath kcore.de.

IP Addresses

kcore.de directs to four IP numbers, which are 104.21.52.125, 172.67.199.56, 2606:4700:3031::ac43:c738 and 2606:4700:3035::6815:347d.

wildwolf.dev, www.healthvault.co.uk, bioinf.at plus two other host names have IP numbers in common with kcore.de.

Name Servers

Two name servers handle the delegation for kcore.de: malcolm.ns.cloudflare.com and samara.ns.cloudflare.com.

The name server configuration of kcore.de is shared with other domains, for instance cristoreyboston.org, koreasettle.com, 3dh24gfk25er62ted13.com and two others.

There is at least partial name server overlap between kcore.de and other domains — am9893.com, joytoykid.org, borsacaddesi.com and two more among them.

These name servers frequently co-occur with the name servers tony.ns.cloudflare.com and fish.ns.cloudflare.com.

Hosts with 6 IP addresses each:

malcolm.ns.cloudflare.com resolves to 108.162.195.81, 162.159.44.81 and 172.64.35.81 among others, with 3 other IP addresses in total.

samara.ns.cloudflare.com resolves to 108.162.194.160, 162.159.38.160 and 172.64.34.160 among others, with 3 other IP addresses in total.

Mail Servers

kcore.de uses two mail servers, arrow-relay.mxrouting.net and arrow.mxrouting.net.

The mail server setup of kcore.de matches that of other domains such as bitmoth.com, hosting.edu.vn, yorkchou.com and two others.

At least some of the mail servers used by kcore.de are shared with other domains: serversphere.info, 5mu.cc, purenews.org and two others among them.

arrow-relay.mxrouting.net directs to 45.43.208.31, as does arrow.mxrouting.net — both hostnames resolve to that one IP address.

arrow-relay.mxrouting.net along with arrow.mxrouting.net each resolve to 45.43.208.31 IP addresses.