caseinterviewpartner.de - dns.ninja

`caseinterviewpartner.de`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:5d9e^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:d3ba^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.93.158^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.211.186^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`pola.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ad6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pola.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`pola.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`pola.ns.cloudflare.com`
		A	108.162.192.214^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pola.ns.cloudflare.com`
		A	172.64.32.214^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pola.ns.cloudflare.com`
		A	173.245.58.214^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pola.ns.cloudflare.com`
NS	`rustam.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c94^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rustam.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c394^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rustam.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2394^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rustam.ns.cloudflare.com`
		A	108.162.195.148^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rustam.ns.cloudflare.com`
		A	162.159.44.148^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rustam.ns.cloudflare.com`
		A	172.64.35.148^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rustam.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f27.1e100.net`
		A	192.179.18.27^{🇺🇸 Google192.178.0.0/15}
			PTR	`ry-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.93.158, 172.67.211.186
		IPv6 hints	2606:4700:3035::6815:5d9e, 2606:4700:3036::ac43:d3ba
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=123, name=cloudflare-ech.com
SOA	`pola.ns.cloudflare.com`dns@cloudflare.com serial=2410461613

`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=1785695829

Subdomains

mail.caseinterviewpartner.de

Same first word

caseinterviewpartner.de

caseinterviewpartner.com

DNS History

26 records (11 active, 15 former)

○NSns.second-ns.com2017-06-30 → 2017-06-30 · 4 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
○ 2026-02-17 08:33:16
○ 2026-08-02 18:48:26

○NSns1.your-server.de2017-06-30 → 2017-06-30 · 4 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
○ 2026-02-17 08:33:16
○ 2026-08-02 18:48:26

○NSns3.second-ns.de2017-06-30 → 2017-06-30 · 4 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
○ 2026-02-17 08:33:16
○ 2026-08-02 18:48:26

○NSns81.domaincontrol.com2015-07-05 → 2016-05-01 · 4 obs

● 2015-07-05 17:06:26
● 2016-05-01 03:30:16
○ 2017-06-30 00:16:46
○ 2026-08-02 18:48:26

○NSns82.domaincontrol.com2015-07-05 → 2016-05-01 · 4 obs

● 2015-07-05 17:06:26
● 2016-05-01 03:30:16
○ 2017-06-30 00:16:46
○ 2026-08-02 18:48:26

●NSpola.ns.cloudflare.com2026-02-17 → 2026-08-02 · 3 obs

○ 2017-06-30 00:16:46
● 2026-02-17 08:33:16
● 2026-08-02 18:48:26

●NSrustam.ns.cloudflare.com2026-02-17 → 2026-08-02 · 3 obs

○ 2017-06-30 00:16:46
● 2026-02-17 08:33:16
● 2026-08-02 18:48:26

○MX_dc-mx.722aa6a887d3.caseinterviewpartner.de2026-02-17 → 2026-05-02 · 5 obs

○ 2017-06-30 00:16:46
● 2026-02-17 08:33:16
● 2026-05-02 19:23:04
○ 2026-06-04 07:19:38
○ 2026-08-02 18:48:26

●MXalt1.aspmx.l.google.com2017-06-30 → 2026-08-02 · 3 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
● 2026-08-02 18:48:26

●MXalt2.aspmx.l.google.com2017-06-30 → 2026-08-02 · 3 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
● 2026-08-02 18:48:26

●MXalt3.aspmx.l.google.com2017-06-30 → 2026-08-02 · 3 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
● 2026-08-02 18:48:26

●MXalt4.aspmx.l.google.com2017-06-30 → 2026-08-02 · 3 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
● 2026-08-02 18:48:26

●MXaspmx.l.google.com2017-06-30 → 2026-08-02 · 3 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
● 2026-08-02 18:48:26

○MXmail.caseinterviewpartner.de2017-06-30 → 2017-06-30 · 4 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
○ 2026-02-17 08:33:16
○ 2026-08-02 18:48:26

○MXmailstore1.secureserver.net2015-07-05 → 2016-05-01 · 4 obs

● 2015-07-05 17:06:26
● 2016-05-01 03:30:16
○ 2017-06-30 00:16:46
○ 2026-08-02 18:48:26

○MXsmtp.secureserver.net2015-07-05 → 2016-05-01 · 4 obs

● 2015-07-05 17:06:26
● 2016-05-01 03:30:16
○ 2017-06-30 00:16:46
○ 2026-08-02 18:48:26

●A104.21.93.1582026-02-17 → 2026-08-02 · 6 obs

○ 2017-06-30 00:16:46
● 2026-02-17 08:33:16
● 2026-03-02 22:47:30
○ 2026-03-03 12:21:50
● 2026-03-05 05:53:56
● 2026-08-02 18:48:26

○A172.64.80.12026-03-03 → 2026-03-03 · 4 obs

○ 2026-03-02 22:47:30
● 2026-03-03 12:21:50
○ 2026-03-05 05:53:56
○ 2026-08-02 18:48:26

●A172.67.211.1862026-02-17 → 2026-08-02 · 6 obs

○ 2017-06-30 00:16:46
● 2026-02-17 08:33:16
● 2026-03-02 22:47:30
○ 2026-03-03 12:21:50
● 2026-03-05 05:53:56
● 2026-08-02 18:48:26

○A213.239.207.1862015-11-08 → 2017-06-30 · 5 obs

○ 2015-07-05 17:06:26
● 2015-11-08 01:16:32
● 2017-06-30 00:16:46
○ 2026-02-17 08:33:16
○ 2026-08-02 18:48:26

○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-07 → 2026-03-13 · 7 obs

○ 2026-03-07 06:36:16
● 2026-03-07 13:38:40
○ 2026-03-10 12:47:34
○ 2026-03-12 06:54:32
● 2026-03-13 13:02:14
○ 2026-03-30 10:25:32
○ 2026-08-02 18:48:26

○A2606:4700:3031::ac43:d3ba2026-02-17 → 2026-06-17 · 11 obs

○ 2017-06-30 00:16:46
● 2026-02-17 08:33:16
● 2026-03-07 06:36:16
○ 2026-03-07 13:38:40
● 2026-03-10 12:47:34
● 2026-03-12 06:54:32
○ 2026-03-13 13:02:14
● 2026-03-30 10:25:32
● 2026-06-17 09:47:26
○ 2026-07-20 13:04:26
○ 2026-08-02 18:48:26

○A2606:4700:3033::6815:5d9e2026-02-17 → 2026-06-17 · 11 obs

●A2606:4700:3035::6815:5d9e2026-07-20 → 2026-08-02 · 3 obs

○ 2026-06-17 09:47:26
● 2026-07-20 13:04:26
● 2026-08-02 18:48:26

●A2606:4700:3036::ac43:d3ba2026-07-20 → 2026-08-02 · 3 obs

○ 2026-06-17 09:47:26
● 2026-07-20 13:04:26
● 2026-08-02 18:48:26

○A78.47.123.2102015-07-05 → 2015-07-05 · 3 obs

● 2015-07-05 17:06:26
○ 2015-11-08 01:16:32
○ 2026-08-02 18:48:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
caseinterviewpartner.de	pola.ns.cloudflare.com, rustam.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.148

NS records: pola.ns.cloudflare.com, rustam.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for caseinterviewpartner.de (unsigned zone)

⏱️ Timing

Total: 804ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.211.186, 104.21.93.158`
AAAA	2	`2606:4700:3035::6815:5d9e, 2606:4700:3036::ac43:d3ba`
NS	2	`pola.ns.cloudflare.com, rustam.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	1	`v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`pola.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

The domain mail.caseinterviewpartner.de falls under the parent caseinterviewpartner.de.

IP Addresses

caseinterviewpartner.de points to the four IP addresses 104.21.93.158, 172.67.211.186, 2606:4700:3035::6815:5d9e and 2606:4700:3036::ac43:d3ba.

www.lukoil-inform.ru, elden.pl, ankaraucanbalon.org plus two other host names have IP numbers in common with caseinterviewpartner.de.

Name Servers

The NS records for caseinterviewpartner.de delegate to pola.ns.cloudflare.com and rustam.ns.cloudflare.com.

The name server configuration of caseinterviewpartner.de is shared with other domains, for instance ardingly.org, pixel-brim.com, snaptok.info and two others.

At least some of caseinterviewpartner.de's name servers are shared with other domains, for example siberofis.com, shoptin.de, cronacsoftware.com and two more.

It is common for these name servers to be used in conjunction with the name servers nelci.ns.cloudflare.com, dalary.ns.cloudflare.com and nick.ns.cloudflare.com.

Hosts with 6 IP addresses each:

pola.ns.cloudflare.com maps to 108.162.192.214, 172.64.32.214, 173.245.58.214 and 3 additional IP addresses.

rustam.ns.cloudflare.com maps to 108.162.195.148, 162.159.44.148, 172.64.35.148 and 3 additional IP addresses.

Mail Servers

caseinterviewpartner.de has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by caseinterviewpartner.de are shared with other domains: arsen.dk, dreamvention.com, ns500731.ns500742.ns500731.ns500754.ns500688.ns500705.ns500688.ns500671.ns500671.ns500649.ns500291.ns500649.ns500291.ns500666.tenderladiesbz.com and two others among them.

These mail servers often appear in conjunction with the mail servers alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names pointing to two IP addresses:

The A records for aspmx.l.google.com return 192.179.18.27 and 2607:f8b0:4004:c1b::1b.

The A records for alt1.aspmx.l.google.com return 108.177.123.27 and 2800:3f0:4003:c0f::1a.

The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1a.

The A records for alt3.aspmx.l.google.com return 192.178.223.27 and 2a00:1450:4009:c0f::1b.

The A records for alt4.aspmx.l.google.com return 172.253.157.27 and 2a00:1450:400c:c23::1a.