`codinghistory.com`

DNSSEC	⚠️ Not signed
A	198.185.159.144^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
NS	`ns1.your-server.de` ⭐
		A	2a01:4f8:0:1::5ddc:1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`ns1.your-server.de`
		A	213.133.100.102^{🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1}
			PTR	`ns1.your-server.de`
NS	`ns.second-ns.com`
		A	2a01:4f8:0:a101::b:1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`ns.second-ns.com`
		A	213.239.204.242^{🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2}
			PTR	`ns.second-ns.com`
NS	`ns3.second-ns.de`
		A	2001:67c:192c::add:b3^{🇩🇪 NORIS-NETWORK2001:67c:192c::/48}
			PTR	`ns3.second-ns.de`
		A	193.47.99.4^{🇩🇪 NORIS-NETWORK193.47.99.0/24}
			PTR	`ns3.second-ns.de`
MX	`mail.tutanota.de` ⭐
		A	185.205.69.211^{🇺🇸 TUTA185.205.69.0/24}
			PTR	`mail.w11.tutanota.de`
		A	185.205.69.213^{🇺🇸 TUTA185.205.69.0/24}
			PTR	`mail.w13.tutanota.de`
		A	185.205.69.214^{🇺🇸 TUTA185.205.69.0/24}
			PTR	`mail.w14.tutanota.de`
TXT	`v=spf1 include:spf.tutanota.de -all`
TXT	`t-verify=b8e4aca6e01a5a36baff53f933293aee`
SOA	`ns1.your-server.de`postmaster@your-server.de 2025-12-11 #0

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774616957

Subdomains

mail.codinghistory.com

Same first word

codinghistory.com

DNS History

7 records (5 active, 2 former)

●NSns.second-ns.com2015-08-20 → 2026-03-27 · 2 obs

● 2015-08-20 06:53:14
● 2026-03-27 13:21:34

●NSns1.your-server.de2015-08-20 → 2026-03-27 · 2 obs

● 2015-08-20 06:53:14
● 2026-03-27 13:21:34

●NSns3.second-ns.de2015-08-20 → 2026-03-27 · 2 obs

● 2015-08-20 06:53:14
● 2026-03-27 13:21:34

○MXmail.codinghistory.com2015-08-20 → 2017-09-21 · 4 obs

● 2015-08-20 06:53:14
● 2017-09-21 12:28:58
○ 2026-02-24 17:20:52
○ 2026-03-27 13:21:34

●MXmail.tutanota.de2026-02-24 → 2026-03-27 · 3 obs

○ 2017-09-21 12:28:58
● 2026-02-24 17:20:52
● 2026-03-27 13:21:34

●A198.185.159.1442026-02-24 → 2026-03-27 · 3 obs

○ 2017-09-21 12:28:58
● 2026-02-24 17:20:52
● 2026-03-27 13:21:34

○A78.47.69.362015-08-20 → 2017-09-21 · 4 obs

● 2015-08-20 06:53:14
● 2017-09-21 12:28:58
○ 2026-02-24 17:20:52
○ 2026-03-27 13:21:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net...	-
codinghistory.com	ns1.your-server.de, ns.second-ns.com, ns3.second-ns.de	2 records

✅ Authoritative Response

Server:213.133.100.102

NS records: ns1.your-server.de, ns.second-ns.com, ns3.second-ns.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codinghistory.com (unsigned zone)

⏱️ Timing

Total: 634ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`198.185.159.144`
NS	3	`ns3.second-ns.de, ns.second-ns.com...`
MX	1	`mail.tutanota.de (pri: 10)`
TXT	2	`v=spf1 include:spf.tutanota.de -all, t-verify=b8e4aca6e01a5a36baff53f933293ae`
SOA	1	`ns1.your-server.de postmaster.your-serve`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.second-ns.com, ns.second-ns.com)

Analysis

Hierarchy

codinghistory.com is parent of mail.codinghistory.com.

IP Addresses

codinghistory.com points to a single IP: 198.185.159.144.

Other host names, for instance sky-high.info, jessyjayrivas.com, dataseals.org, waverleygreens.com and strickelec.com share IP numbers with codinghistory.com.

Name Servers

codinghistory.com is delegated to three name servers: ns.second-ns.com, ns3.second-ns.de and ns1.your-server.de.

codinghistory.com at least partially shares its name servers with other domains, for instance geass.de, echolot.de, inoha.at, f-e.de and transinet.biz.

Host names with two IP numbers:

ns.second-ns.com points to: 2a01:4f8:0:a101::b:1 and 213.239.204.242.

ns3.second-ns.de points to: 2001:67c:192c::add:b3 and 193.47.99.4.

ns1.your-server.de points to: 2a01:4f8:0:1::5ddc:1 and 213.133.100.102.

Mail Servers

codinghistory.com is served by a single mail server, mail.tutanota.de.

codinghistory.com uses the same mail server setup as other domains such as laitinlok.com, securitron.net, freedom.foundation, nightly.network and nigen.net.

codinghistory.com shares at least partially some mail servers with other domains, for example calcers.com, themodestproposals.org, ideawave.ca and theholyroger.com.

Host mail.tutanota.de points to three IP numbers: 185.205.69.211, 185.205.69.213 and 185.205.69.214.

codinghistory.com - robtex.com