`mail.knowledgetools.de`

CNAME	`mx5.knowledgetools.de`
DNSSEC	⚠️ Not signed
A	46.231.177.197^{🇩🇪 UNBELIEVABLE-AS46.231.176.0/21 Orange Business Services GmbH}
		PTR	`mx5.knowledgetools.de`

`knowledgetools.de`

	DNSSEC	⚠️ Not signed
	A	78.46.215.207^{🇩🇪 Hetzner78.46.0.0/15 HETZNER-RZ-NBG-BLK5}
	A	78.46.225.107^{🇩🇪 Hetzner78.46.0.0/15 HETZNER-RZ-NBG-BLK5}
	NS	`dns5.knowledgetools.de` ⭐
	NS	`b.ns14.net` ⚠️ Not in parent delegation
	NS	`c.ns14.net` ⚠️ Not in parent delegation
	NS	`dns5-ktools.unbelievable-machine.net` ⚠️ Not in parent delegation
	NS	`dns6-ktools.unbelievable-machine.net` ⚠️ Not in parent delegation
	NS	`dns6.knowledgetools.de`
	MX	`mx5.knowledgetools.de` ⭐
	TXT	`google-site-verification=vlqTYUKnLRd8NROPx8n-EwAhhXpivWtfTZ-v7vL8qC0`
	TXT	`v=spf1 mx a:mx5.knowledgetools.de -all`
	SOA	`dns5.knowledgetools.de`webmaster@knowledgetools.de 2026-01-28 #2

📈 Tranco rank: #751,221

Previously MX for

knowledgetools.at

hartzig.de

Same first word

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DNS History

5 records (1 active, 4 former)

○A144.76.178.1492015-06-07 → 2016-04-11 · 5 obs

○ 2009-01-12 08:32:24
● 2015-06-07 23:14:10
● 2016-04-11 21:38:24
○ 2026-03-26 11:47:40
○ 2026-03-26 11:47:44

○A2a01:4f8:200:4050::1492015-06-07 → 2016-04-11 · 5 obs

○ 2009-01-12 08:32:24
● 2015-06-07 23:14:10
● 2016-04-11 21:38:24
○ 2026-03-26 11:47:40
○ 2026-03-26 11:47:44

○A85.214.92.892009-01-12 → 2009-01-12 · 3 obs

● 2009-01-12 08:32:24
○ 2015-06-07 23:14:10
○ 2026-03-26 11:47:44

○CNAMEmx1.knowledgetools.de2015-06-07 → 2016-04-11 · 5 obs

○ 2009-01-12 08:32:24
● 2015-06-07 23:14:10
● 2016-04-11 21:38:24
○ 2026-03-26 11:47:40
○ 2026-03-26 11:47:44

●CNAMEmx5.knowledgetools.de2026-03-26 → 2026-03-26 · 3 obs

○ 2016-04-11 21:38:24
● 2026-03-26 11:47:40
● 2026-03-26 11:47:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
knowledgetools.de	b.ns14.net, c.ns14.net, dns5.knowledgetools.de, dns6.knowledgetools.de...	2 records

✅ Authoritative Response

Server:46.231.177.196

NS records: b.ns14.net, c.ns14.net, dns5.knowledgetools.de, dns6.knowledgetools.de, dns5-ktools.unbelievable-machine.net, dns6-ktools.unbelievable-machine.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledgetools.de (unsigned zone)

⏱️ Timing

Total: 979ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`mx5.knowledgetools.de`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (dns5.knowledgetools.de, dns6.knowledgetools.de)

Analysis

IP Addresses

mail.knowledgetools.de points to a single IP number: 46.231.177.197.

Other host names, for instance mx5.knowledgetools.de, share IP numbers with mail.knowledgetools.de.

mail.knowledgetools.de - robtex.com