🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`mail.computerstack.de`

	DNSSEC	⚠️ Not signed
	A	2a01:4f8:c2c:4d6e::1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
	A	159.69.111.4^{🇩🇪 Hetzner159.69.0.0/16 HETZNER-DC}

`computerstack.de`

	DNSSEC	⚠️ Not signed
	A	2a01:4f8:c2c:4d6e::1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
	A	159.69.111.4^{🇩🇪 Hetzner159.69.0.0/16 HETZNER-DC}
	NS	`ns1.first-ns.de` ⭐
	NS	`robotns2.second-ns.de`
	NS	`robotns3.second-ns.com`
	MX	`mail.computerstack.de` ⭐
	TXT	`v=spf1 a mx -all`
	TXT	`google-site-verification=NnxnmMbxub1dPI7Sb9YUk9fp4M4KGDkb-m88P9c2Dgc`
	SOA	`ns1.first-ns.de`hosting@hosting-nbg1-2.solix.center 2026-03-16 #3

MX for

computerstack.de

Same first word

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Previous names

Next names

DNS History

2 records (2 active, 0 former)

●A159.69.111.42026-11-10 → 2026-11-10 · 2 obs

● 2026-11-10 12:42:14
● 2026-11-10 12:56:42

●A2a01:4f8:c2c:4d6e::12026-11-10 → 2026-11-10 · 2 obs

● 2026-11-10 12:42:14
● 2026-11-10 12:56:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
computerstack.de	robotns2.second-ns.de, robotns3.second-ns.com, ns1.first-ns.de	-

✅ Authoritative Response

Server:213.133.100.103

NS records: robotns2.second-ns.de, robotns3.second-ns.com, ns1.first-ns.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 1085ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`159.69.111.4`
AAAA	1	`2a01:4f8:c2c:4d6e::1`

Analysis

Mail Server Role

The mail server mail.computerstack.de processes email for computerstack.de.

IP Addresses

mail.computerstack.de directs to two IP numbers, 159.69.111.4 and 2a01:4f8:c2c:4d6e::1

Two other host names, along with zwiso.de, mail.mconsol.com and mail.belriether-hofkaeserei.de, also share IP numbers with mail.computerstack.de.

mail.computerstack.de - robtex.com