`explainacademy.com`

DNSSEC	⚠️ Not signed
A	213.133.104.4^{🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1}
		PTR	`www4.your-server.de`
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.explainacademy.com` ⭐
		A	213.133.104.4^{🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1}
			PTR	`www4.your-server.de`
TXT	`v=spf1 +a +mx ?all`
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=1776091722

Same first word

explainacademy.com

DNS History

5 records (5 active, 0 former)

●NSns.second-ns.com2017-02-08 → 2026-04-13 · 2 obs

● 2017-02-08 16:59:32
● 2026-04-13 15:08:56

●NSns1.your-server.de2017-02-08 → 2026-04-13 · 2 obs

● 2017-02-08 16:59:32
● 2026-04-13 15:08:56

●NSns3.second-ns.de2017-02-08 → 2026-04-13 · 2 obs

● 2017-02-08 16:59:32
● 2026-04-13 15:08:56

●MXmail.explainacademy.com2017-02-08 → 2026-04-13 · 2 obs

● 2017-02-08 16:59:32
● 2026-04-13 15:08:56

●A213.133.104.42017-02-08 → 2026-04-13 · 2 obs

● 2017-02-08 16:59:32
● 2026-04-13 15:08:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
explainacademy.com	ns1.your-server.de, ns.second-ns.com, ns3.second-ns.de	2 records

✅ Authoritative Response

Server:213.239.204.242

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for explainacademy.com (unsigned zone)

⏱️ Timing

Total: 365ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`213.133.104.4`
NS	3	`ns.second-ns.com, ns1.your-server.de...`
MX	1	`mail.explainacademy.com (pri: 10)`
TXT	1	`v=spf1 +a +mx ?all`
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

IP Addresses

explainacademy.com points to an IP address: 213.133.104.4.

other host names include deframe.net, playbacks24.de, urlaub-in-deutschland.de, mail.ucic.at and mail.markenmoebelboerse.de; they share IP numbers with explainacademy.com.

Name Servers

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

explainacademy.com at least partially shares name servers with other domains, for instance bolsos.net, e.6.d.a.c.0.c.0.8.f.4.0.1.0.a.2.ip6.arpa, gendarmenmarkt.org, studiomove.ba and mic-ar.de.

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

explainacademy.com is handled by a single mail server, mail.explainacademy.com.

The host name mail.explainacademy.com points to IP 213.133.104.4.

explainacademy.com - robtex.com