coldtech.de - dns.ninja

`coldtech.de`

DNSSEC	⚠️ Not signed
A	2003:cc:4745:a402:dcad:47ff:fe5e:5d7a^{🇩🇪 DTAG2003::/19 Deutsche Telekom large PA space}
A	79.242.217.173^{🇩🇪 DTAG79.192.0.0/10 Deutsche Telekom AG, Internet service provider}
NS	`john.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bb9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`john.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1b9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`john.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21b9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`john.ns.cloudflare.com`
		A	108.162.193.185^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`john.ns.cloudflare.com`
		A	172.64.33.185^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`john.ns.cloudflare.com`
		A	173.245.59.185^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`john.ns.cloudflare.com`
NS	`pearl.ns.cloudflare.com`
		A	2606:4700:50::a29f:268c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pearl.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c28c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`pearl.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:228c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`pearl.ns.cloudflare.com`
		A	108.162.194.140^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pearl.ns.cloudflare.com`
		A	162.159.38.140^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pearl.ns.cloudflare.com`
		A	172.64.34.140^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pearl.ns.cloudflare.com`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
MX	`aspmx.l.google.com`⁽¹⁰⁰⁾
		A	2607:f8b0:4004:c08::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f27.1e100.net`
		A	172.253.122.27^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f27.1e100.net`
MX	`mx01.mail.icloud.com`⁽¹⁰⁰⁾
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
MX	`mx02.mail.icloud.com`⁽¹⁰⁰⁾
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
MX	`mx1.simplelogin.co`⁽²¹⁰⁾
		A	176.119.200.136^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mx1.simplelogin.co`
			PTR	`mx2.simplelogin.co`
		A	185.205.70.136^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mx1.simplelogin.co`
			PTR	`mx2.simplelogin.co`
MX	`mx2.simplelogin.co`⁽²²⁰⁾
		A	176.119.200.136^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mx1.simplelogin.co`
			PTR	`mx2.simplelogin.co`
		A	185.205.70.136^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mx1.simplelogin.co`
			PTR	`mx2.simplelogin.co`
MX	`alt1.aspmx.l.google.com`⁽⁵⁰⁰⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁰⁰⁾
		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`
TXT	`apple-domain=n8kQXDSClUrQlbLP`
TXT	`protonmail-verification=b33aa63cbaa40e42e2a03e79dddd813c05e638b5`
TXT	`sl-verification=ptynwecrciwxpqxgqvexgoxizdikqk`
TXT	`v=spf1 include:simplelogin.co include:_spf.protonmail.ch include:_spf.webhost...`
SOA	`john.ns.cloudflare.com`dns@cloudflare.com serial=2407509443

`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=1782568163

Same first word

coldtech.eu

coldtech.tech

coldtech.de

coldtech.cl

coldtech.be

coldtech.org

coldtech.com.br

coldtech.es

coldtech.com.mx

coldtech.net

coldtech.com

Similar names

checoltd.co.uk

coldetch.xyz

techcold.ru

techcold.com

DNS History

21 records (13 active, 8 former)

●NSjohn.ns.cloudflare.com2026-03-20 → 2026-06-27 · 3 obs

○ 2017-04-07 23:53:42
● 2026-03-20 08:37:04
● 2026-06-27 13:52:32

●NSpearl.ns.cloudflare.com2026-03-20 → 2026-06-27 · 3 obs

○ 2017-04-07 23:53:42
● 2026-03-20 08:37:04
● 2026-06-27 13:52:32

○NSpri.asok.de2015-08-18 → 2017-04-07 · 4 obs

● 2015-08-18 00:14:34
● 2017-04-07 23:53:42
○ 2026-03-20 08:37:04
○ 2026-06-27 13:52:32

○NSsec.asok.de2015-08-18 → 2017-04-07 · 4 obs

● 2015-08-18 00:14:34
● 2017-04-07 23:53:42
○ 2026-03-20 08:37:04
○ 2026-06-27 13:52:32

●MXalt1.aspmx.l.google.com2015-08-18 → 2026-06-27 · 2 obs

● 2015-08-18 00:14:34
● 2026-06-27 13:52:32

●MXalt2.aspmx.l.google.com2015-08-18 → 2026-06-27 · 2 obs

● 2015-08-18 00:14:34
● 2026-06-27 13:52:32

●MXaspmx.l.google.com2015-08-18 → 2026-06-27 · 2 obs

● 2015-08-18 00:14:34
● 2026-06-27 13:52:32

○MXaspmx2.googlemail.com2015-08-18 → 2017-04-07 · 4 obs

● 2015-08-18 00:14:34
● 2017-04-07 23:53:42
○ 2026-03-20 08:37:04
○ 2026-06-27 13:52:32

●MXmail.protonmail.ch2026-03-20 → 2026-06-27 · 3 obs

○ 2017-04-07 23:53:42
● 2026-03-20 08:37:04
● 2026-06-27 13:52:32

●MXmailsec.protonmail.ch2026-03-20 → 2026-06-27 · 3 obs

○ 2017-04-07 23:53:42
● 2026-03-20 08:37:04
● 2026-06-27 13:52:32

●MXmx01.mail.icloud.com2026-03-20 → 2026-06-27 · 3 obs

○ 2017-04-07 23:53:42
● 2026-03-20 08:37:04
● 2026-06-27 13:52:32

●MXmx02.mail.icloud.com2026-03-20 → 2026-06-27 · 3 obs

○ 2017-04-07 23:53:42
● 2026-03-20 08:37:04
● 2026-06-27 13:52:32

●MXmx1.simplelogin.co2026-03-20 → 2026-06-27 · 3 obs

○ 2017-04-07 23:53:42
● 2026-03-20 08:37:04
● 2026-06-27 13:52:32

●MXmx2.simplelogin.co2026-03-20 → 2026-06-27 · 3 obs

○ 2017-04-07 23:53:42
● 2026-03-20 08:37:04
● 2026-06-27 13:52:32

●A2003:cc:4745:a402:dcad:47ff:fe5e:5d7a2026-06-21 → 2026-06-27 · 3 obs

○ 2026-04-14 01:48:20
● 2026-06-21 12:24:28
● 2026-06-27 13:52:32

○A208.93.154.1382015-08-18 → 2017-04-07 · 4 obs

● 2015-08-18 00:14:34
● 2017-04-07 23:53:42
○ 2026-03-20 08:37:04
○ 2026-06-27 13:52:32

○A2a03:4000:30:e15c::15:86712026-03-20 → 2026-04-14 · 5 obs

○ 2017-04-07 23:53:42
● 2026-03-20 08:37:04
● 2026-04-14 01:48:20
○ 2026-06-21 12:24:28
○ 2026-06-27 13:52:32

○A79.242.210.1412026-03-20 → 2026-03-20 · 4 obs

○ 2017-04-07 23:53:42
● 2026-03-20 08:37:04
○ 2026-03-24 00:00:32
○ 2026-06-27 13:52:32

●A79.242.217.1732026-06-21 → 2026-06-27 · 3 obs

○ 2026-04-14 01:48:20
● 2026-06-21 12:24:28
● 2026-06-27 13:52:32

○A79.242.219.1912026-03-20 → 2026-06-27 · 2 obs

○ 2026-03-20 08:37:04
○ 2026-06-27 13:52:32

○A91.6.92.2512026-03-24 → 2026-04-14 · 5 obs

○ 2026-03-20 08:37:04
● 2026-03-24 00:00:32
● 2026-04-14 01:48:20
○ 2026-06-21 12:24:28
○ 2026-06-27 13:52:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	f.nic.de, z.nic.de, a.nic.de	-
coldtech.de	pearl.ns.cloudflare.com, john.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.140

NS records: pearl.ns.cloudflare.com, john.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coldtech.de (unsigned zone)

⏱️ Timing

Total: 902ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`79.242.217.173`
AAAA	1	`2003:cc:4745:a402:dcad:47ff:fe5e:5d7a`
NS	2	`john.ns.cloudflare.com, pearl.ns.cloudflare.com`
MX	9	`mail.protonmail.ch (pri: 10), aspmx.l.google.com (pri: 100)...`
TXT	4	`apple-domain=n8kQXDSClUrQlbLP, protonmail-verification=b33aa63cbaa40e42...`
SOA	1	`john.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

coldtech.de directs to two IP numbers, 79.242.217.173 and 2003:cc:4745:a402:dcad:47ff:fe5e:5d7a

Name Servers

coldtech.de is served by two delegated name servers, john.ns.cloudflare.com and pearl.ns.cloudflare.com.

coldtech.de uses the same name servers as several other domains — among them briconow.it, akenabris.com, hamizonline.com and two more.

coldtech.de has at least partial name server overlap with other domains, such as online-education.net, hadjipavlou.com, qwhzwkmfo.com and two others.

It is common to see these name servers used together with name servers princess.ns.cloudflare.com and ines.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

john.ns.cloudflare.com carries IP addresses 108.162.193.185, 172.64.33.185 and 173.245.59.185, with 3 other addresses beyond those.

pearl.ns.cloudflare.com carries IP addresses 108.162.194.140, 162.159.38.140 and 172.64.34.140, with 3 other addresses beyond those.

Mail Servers

Mail for coldtech.de is routed through 9 mail servers, including mail.protonmail.ch, mailsec.protonmail.ch, mx1.simplelogin.co and 6 other.

coldtech.de has at least partial mail server overlap with other domains such as agrology.ag, imbue.se, numus.on.ca and two more.

These mail servers commonly co-occur with mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and 7 others.

Hostnames that resolve to 6 IP addresses:

mx01.mail.icloud.com carries IP addresses 17.42.251.62, 17.56.9.31 and 17.57.152.5, with 3 other addresses beyond those.

mx02.mail.icloud.com carries IP addresses 17.42.251.62, 17.56.9.31 and 17.57.152.5, with 3 other addresses beyond those.

Hostnames that resolve to three IP addresses:

mail.protonmail.ch resolves to three addresses: 176.119.200.128, 185.70.42.128 and 185.205.70.128.

mailsec.protonmail.ch resolves to three addresses: 176.119.200.129, 185.70.42.129 and 185.205.70.129.

Hostnames that resolve to two IP addresses:

mx1.simplelogin.co maps to two IP addresses — 176.119.200.136 and 185.205.70.136.

mx2.simplelogin.co maps to two IP addresses — 176.119.200.136 and 185.205.70.136.

aspmx.l.google.com maps to two IP addresses — 172.253.122.27 and 2607:f8b0:4004:c08::1b.

alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.26 and 2800:3f0:4003:c0f::1b.

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

These two host names — mx01.mail.icloud.com and mx02.mail.icloud.com — each point to 17.42.251.62 IP addresses.

These two host names — mx01.mail.icloud.com and mx02.mail.icloud.com — each point to 17.56.9.31 IP addresses.

These two host names — mx01.mail.icloud.com and mx02.mail.icloud.com — each point to 17.57.152.5 IP addresses.

These two host names — mx01.mail.icloud.com and mx02.mail.icloud.com — each point to 17.57.154.33 IP addresses.

These two host names — mx01.mail.icloud.com and mx02.mail.icloud.com — each point to 17.57.155.25 IP addresses.

These two host names — mx01.mail.icloud.com and mx02.mail.icloud.com — each point to 17.57.156.30 IP addresses.

These two host names — mx1.simplelogin.co and mx2.simplelogin.co — each point to 176.119.200.136 IP addresses.

These two host names — mx1.simplelogin.co and mx2.simplelogin.co — each point to 185.205.70.136 IP addresses.