`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}
		A	162.159.44.148^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.35.148^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c27::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadsk-in-f26.1e100.net`
		A	172.253.122.26^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f26.1e100.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::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.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=72, name=cloudflare-ech.com
SOA	`pola.ns.cloudflare.com`dns@cloudflare.com serial=2407024654

`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=1784551392

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
○ 2026-07-20 13:04:26

○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
○ 2026-07-20 13:04:26

○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
○ 2026-07-20 13:04:26

○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
○ 2026-07-20 13:04:26

○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
○ 2026-07-20 13:04:26

●NSpola.ns.cloudflare.com2026-02-17 → 2026-07-20 · 3 obs

○ 2017-06-30 00:16:46
● 2026-02-17 08:33:16
● 2026-07-20 13:04:26

●NSrustam.ns.cloudflare.com2026-02-17 → 2026-07-20 · 3 obs

○ 2017-06-30 00:16:46
● 2026-02-17 08:33:16
● 2026-07-20 13:04:26

○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
○ 2026-07-20 13:04:26

●MXalt1.aspmx.l.google.com2017-06-30 → 2026-07-20 · 3 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
● 2026-07-20 13:04:26

●MXalt2.aspmx.l.google.com2017-06-30 → 2026-07-20 · 3 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
● 2026-07-20 13:04:26

●MXalt3.aspmx.l.google.com2017-06-30 → 2026-07-20 · 3 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
● 2026-07-20 13:04:26

●MXalt4.aspmx.l.google.com2017-06-30 → 2026-07-20 · 3 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
● 2026-07-20 13:04:26

●MXaspmx.l.google.com2017-06-30 → 2026-07-20 · 3 obs

○ 2016-05-01 03:30:16
● 2017-06-30 00:16:46
● 2026-07-20 13:04:26

○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
○ 2026-07-20 13:04:26

○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
○ 2026-07-20 13:04:26

○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
○ 2026-07-20 13:04:26

●A104.21.93.1582026-02-17 → 2026-07-20 · 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
● 2026-07-20 13:04:26

○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
○ 2026-07-20 13:04:26

●A172.67.211.1862026-02-17 → 2026-07-20 · 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
● 2026-07-20 13:04:26

○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
○ 2026-07-20 13:04:26

○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
○ 2026-07-20 13:04:26

○A2606:4700:3031::ac43:d3ba2026-02-17 → 2026-06-17 · 10 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

○A2606:4700:3033::6815:5d9e2026-02-17 → 2026-06-17 · 10 obs

●A2606:4700:3035::6815:5d9e2026-07-20 → 2026-07-20 · 2 obs

○ 2026-06-17 09:47:26
● 2026-07-20 13:04:26

●A2606:4700:3036::ac43:d3ba2026-07-20 → 2026-07-20 · 2 obs

○ 2026-06-17 09:47:26
● 2026-07-20 13:04:26

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

● 2015-07-05 17:06:26
○ 2015-11-08 01:16:32
○ 2026-07-20 13:04:26

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:108.162.195.148

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for caseinterviewpartner.de (unsigned zone)

⏱️ Timing

Total: 1299ms | 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

caseinterviewpartner.de is the parent zone for mail.caseinterviewpartner.de.

IP Addresses

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

Additional host names — www.lukoil-inform.ru, elden.pl, ankaraucanbalon.org and two others — share IP numbers with caseinterviewpartner.de.

Name Servers

caseinterviewpartner.de is served by two delegated name servers, pola.ns.cloudflare.com and rustam.ns.cloudflare.com.

caseinterviewpartner.de shares its name server setup with other domains, including ardingly.org, pixel-brim.com, snaptok.info and two others.

caseinterviewpartner.de partially shares its NS delegation with several other domains, including siberofis.com, shoptin.de, cronacsoftware.com and two others.

These name servers are regularly seen alongside nelci.ns.cloudflare.com and nick.ns.cloudflare.com as name servers.

Host names with 6 IP numbers:

pola.ns.cloudflare.com carries IP addresses 108.162.192.214, 172.64.32.214 and 173.245.58.214, with 3 other addresses beyond those.

rustam.ns.cloudflare.com carries IP addresses 108.162.195.148, 162.159.44.148 and 172.64.35.148, with 3 other addresses beyond those.

Mail Servers

caseinterviewpartner.de is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

caseinterviewpartner.de shares mail servers — at least in part — with other domains, including arsen.dk, dreamvention.com, ns500731.ns500742.ns500731.ns500754.ns500688.ns500705.ns500688.ns500671.ns500671.ns500649.ns500291.ns500649.ns500291.ns500666.tenderladiesbz.com and two others.

These mail servers are frequently paired with the mail servers alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com maps to two IP addresses — 172.253.122.26 and 2607:f8b0:4004:c27::1a.

alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.27 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com maps to two IP addresses — 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com maps to two IP addresses — 172.253.157.27 and 2a00:1450:400c:c23::1a.

caseinterviewpartner.de - robtex.com