dotcore.org - dns.ninja

`dotcore.org`

DNSSEC	⚠️ Not signed
NS	`hydrogen.ns.hetzner.com` ⭐
		A	2a01:4f8:0:1::add:1098^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`hydrogen.ns.hetzner.com`
		A	213.133.100.98^{🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1}
			PTR	`hydrogen.ns.hetzner.com`
NS	`helium.ns.hetzner.de`
		A	2001:67c:192c::add:5^{🇩🇪 NORIS-NETWORK2001:67c:192c::/48}
			PTR	`helium.ns.hetzner.de`
		A	193.47.99.5^{🇩🇪 NORIS-NETWORK193.47.99.0/24}
			PTR	`helium.ns.hetzner.de`
NS	`oxygen.ns.hetzner.com`
		A	2a01:4f8:0:1::add:2992^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`oxygen.ns.hetzner.com`
		A	88.198.229.192^{🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4}
			PTR	`oxygen.ns.hetzner.com`
MX	`in1-smtp.messagingengine.com` ⭐
		A	103.168.172.216^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-01.messagingengine.com`
		A	103.168.172.217^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-02.messagingengine.com`
		A	103.168.172.218^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-03.messagingengine.com`
		A	103.168.172.219^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-04.messagingengine.com`
		A	103.168.172.220^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-05.messagingengine.com`
		A	103.168.172.221^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-06.messagingengine.com`
		A	103.168.172.222^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-07.messagingengine.com`
		A	103.168.172.223^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-08.messagingengine.com`
MX	`in2-smtp.messagingengine.com`⁽²⁰⁾
		A	202.12.124.216^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-01.messagingengine.com`
		A	202.12.124.217^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-02.messagingengine.com`
		A	202.12.124.218^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-03.messagingengine.com`
		A	202.12.124.219^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-04.messagingengine.com`
TXT	`v=spf1 include:spf.messagingengine.com ?all`
SOA	`hydrogen.ns.hetzner.com`dns@hetzner.com 2026-04-29 #0

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1781859296

Same first word

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dotcore.eu

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dotcore.net

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DNS History

14 records (5 active, 9 former)

○NSetta.ns.cloudflare.com2020-02-20 → 2020-02-20 · 4 obs

○ 2017-02-18 01:06:08
● 2020-02-20 08:56:54
○ 2026-02-17 15:37:26
○ 2026-06-19 09:04:02

●NShelium.ns.hetzner.de2026-02-17 → 2026-06-19 · 3 obs

○ 2020-02-20 08:56:54
● 2026-02-17 15:37:26
● 2026-06-19 09:04:02

●NShydrogen.ns.hetzner.com2026-02-17 → 2026-06-19 · 3 obs

○ 2020-02-20 08:56:54
● 2026-02-17 15:37:26
● 2026-06-19 09:04:02

○NSns1.first-ns.de2015-06-20 → 2017-02-18 · 4 obs

● 2015-06-20 11:12:34
● 2017-02-18 01:06:08
○ 2020-02-20 08:56:54
○ 2026-06-19 09:04:02

●NSoxygen.ns.hetzner.com2026-02-17 → 2026-06-19 · 3 obs

○ 2020-02-20 08:56:54
● 2026-02-17 15:37:26
● 2026-06-19 09:04:02

○NSrobotns2.second-ns.de2015-06-20 → 2017-02-18 · 4 obs

● 2015-06-20 11:12:34
● 2017-02-18 01:06:08
○ 2020-02-20 08:56:54
○ 2026-06-19 09:04:02

○NSrobotns3.second-ns.com2015-06-20 → 2017-02-18 · 4 obs

● 2015-06-20 11:12:34
● 2017-02-18 01:06:08
○ 2020-02-20 08:56:54
○ 2026-06-19 09:04:02

○NSvin.ns.cloudflare.com2020-02-20 → 2020-02-20 · 4 obs

○ 2017-02-18 01:06:08
● 2020-02-20 08:56:54
○ 2026-02-17 15:37:26
○ 2026-06-19 09:04:02

●MXin1-smtp.messagingengine.com2026-02-17 → 2026-06-19 · 3 obs

○ 2020-02-20 08:56:54
● 2026-02-17 15:37:26
● 2026-06-19 09:04:02

●MXin2-smtp.messagingengine.com2026-02-17 → 2026-06-19 · 3 obs

○ 2020-02-20 08:56:54
● 2026-02-17 15:37:26
● 2026-06-19 09:04:02

○MXmail.dotcore.net2015-06-20 → 2020-02-20 · 6 obs

● 2015-06-20 11:12:34
● 2016-02-16 07:09:42
○ 2016-06-24 19:43:10
● 2020-02-20 08:56:54
○ 2026-02-17 15:37:26
○ 2026-06-19 09:04:02

○MXmx.runbox.com2016-06-24 → 2017-02-18 · 5 obs

○ 2016-02-16 07:09:42
● 2016-06-24 19:43:10
● 2017-02-18 01:06:08
○ 2020-02-20 08:56:54
○ 2026-06-19 09:04:02

○A144.76.98.802015-06-20 → 2016-02-16 · 4 obs

● 2015-06-20 11:12:34
● 2016-02-16 07:09:42
○ 2016-06-24 19:43:10
○ 2026-06-19 09:04:02

○A78.47.160.2162016-06-24 → 2017-02-18 · 5 obs

○ 2016-02-16 07:09:42
● 2016-06-24 19:43:10
● 2017-02-18 01:06:08
○ 2020-02-20 08:56:54
○ 2026-06-19 09:04:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
dotcore.org	oxygen.ns.hetzner.com, helium.ns.hetzner.de, hydrogen.ns.hetzner.com	-

✅ Authoritative Response

Server:193.47.99.5

NS records: oxygen.ns.hetzner.com, helium.ns.hetzner.de, hydrogen.ns.hetzner.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dotcore.org (unsigned zone)

⏱️ Timing

Total: 787ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	3	`oxygen.ns.hetzner.com, helium.ns.hetzner.de...`
MX	2	`in2-smtp.messagingengine.com (pri: 20), in1-smtp.messagingengine.com (pri: 10)`
TXT	1	`v=spf1 include:spf.messagingengine.com ?`
SOA	1	`hydrogen.ns.hetzner.com dns.hetzner.com`

Analysis

Name Servers

The authoritative name servers for dotcore.org are hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de — three in total.

At least some of dotcore.org's name servers are shared with other domains, for example eriza.gr, planetescape.pl, venyon.biz and two more.

These name servers are often deployed together with the name servers ns1.first-ns.de, ns.second-ns.com, ns3.second-ns.de and ns1.your-server.de.

hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de all resolve to exactly two IP numbers apiece: hydrogen.ns.hetzner.com → 213.133.100.98 and 2a01:4f8:0:1::add:1098; oxygen.ns.hetzner.com → 88.198.229.192 and 2a01:4f8:0:1::add:2992; helium.ns.hetzner.de → 193.47.99.5 and 2001:67c:192c::add:5.

Mail Servers

dotcore.org is served by two mail servers, in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

Among the domains sharing a mail server setup with dotcore.org are ns.bockoboy.com, smogdog.net, apher.gewooniets.nl and two others.

At least a portion of dotcore.org's mail servers are shared with other domains, among them fish123.com.tw and storywarrant.com.

DNS names with 8 IP addresses:

Hostname in1-smtp.messagingengine.com directs to 103.168.172.216, 103.168.172.217 and 103.168.172.218 along with 5 other IP addresses.

Host names that resolve to four IP numbers:

in2-smtp.messagingengine.com directs to 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.