knowmax.de - dns.ninja

`knowmax.de`

DNSSEC	🔒 Signed (DS record present)
A	2001:7b8:620:1::d59a:e223^{🇳🇱 NL-BIT2001:7b8::/29 -20020405 BIT bv, The Netherlands}
A	213.154.226.35^{🇳🇱 NL-BIT213.154.224.0/19 BIT B.V.}
NS	`ns1.xel.nl` ⭐
		A	2001:7b8:620:1::d59a:e20a^{🇳🇱 NL-BIT2001:7b8::/29 -20020405 BIT bv, The Netherlands}
		A	213.154.226.10^{🇳🇱 NL-BIT213.154.224.0/19 BIT B.V.}
NS	`ns2.xel.nl`
		A	2001:7b8:620:1::d59a:e214^{🇳🇱 NL-BIT2001:7b8::/29 -20020405 BIT bv, The Netherlands}
		A	213.154.226.20^{🇳🇱 NL-BIT213.154.224.0/19 BIT B.V.}
NS	`ns3.xel.nl`
		A	2a01:4f8:190:610e::2^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
		A	78.46.142.112^{🇩🇪 Hetzner78.46.0.0/15 HETZNER-RZ-NBG-BLK5}
			PTR	`static.112.142.46.78.clients.your-server.de`
MX	`mx1.xel.nl` ⭐
		A	2001:7b8:620:1::d59a:e204^{🇳🇱 NL-BIT2001:7b8::/29 -20020405 BIT bv, The Netherlands}
			PTR	`mx1.xel.nl`
		A	213.154.226.4^{🇳🇱 NL-BIT213.154.224.0/19 BIT B.V.}
MX	`mx11.xel.nl` ⭐
		A	2001:7b8:620:1::d59a:e219^{🇳🇱 NL-BIT2001:7b8::/29 -20020405 BIT bv, The Netherlands}
			PTR	`mx11.xel.nl`
		A	213.154.226.25^{🇳🇱 NL-BIT213.154.224.0/19 BIT B.V.}
MX	`mx2.xel.nl` ⭐
		A	2001:7b8:620:1::d59a:e205^{🇳🇱 NL-BIT2001:7b8::/29 -20020405 BIT bv, The Netherlands}
			PTR	`mx2.xel.nl`
		A	213.154.226.5^{🇳🇱 NL-BIT213.154.224.0/19 BIT B.V.}
MX	`mx3.xel.nl`⁽¹⁵⁾
		A	2001:7b8:620:1::d59a:e203^{🇳🇱 NL-BIT2001:7b8::/29 -20020405 BIT bv, The Netherlands}
			PTR	`mx3.xel.nl`
		A	213.154.226.3^{🇳🇱 NL-BIT213.154.224.0/19 BIT B.V.}
TXT	`v=spf1 a mx -all`
SOA	`ns1.xel.nl`hostmaster@knowmax.de 2026-06-11 #1

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1781379491

Same first word

knowmax.net

knowmax.nl

knowmax.in

knowmax.com

knowmax.eu

knowmax.de

knowmax.info

knowmax.io

knowmax.be

knowmax.ai

DNS History

18 records (9 active, 9 former)

○NSdocks06.rzone.de2015-08-11 → 2015-08-11 · 3 obs

● 2015-08-11 08:49:52
○ 2015-11-28 12:42:46
○ 2026-06-13 19:51:22

○NSns1.domainname.at2016-02-24 → 2016-02-24 · 4 obs

○ 2015-11-28 12:42:46
● 2016-02-24 07:55:58
○ 2016-07-09 06:52:54
○ 2026-06-13 19:51:22

○NSns1.redirectdom.com2016-02-24 → 2016-02-24 · 4 obs

○ 2015-11-28 12:42:46
● 2016-02-24 07:55:58
○ 2016-07-09 06:52:54
○ 2026-06-13 19:51:22

●NSns1.xel.nl2026-05-01 → 2026-06-13 · 3 obs

○ 2016-07-09 06:52:54
● 2026-05-01 21:47:48
● 2026-06-13 19:51:22

○NSns2.redirectdom.com2016-02-24 → 2016-02-24 · 4 obs

○ 2015-11-28 12:42:46
● 2016-02-24 07:55:58
○ 2016-07-09 06:52:54
○ 2026-06-13 19:51:22

●NSns2.xel.nl2026-05-01 → 2026-06-13 · 3 obs

○ 2016-07-09 06:52:54
● 2026-05-01 21:47:48
● 2026-06-13 19:51:22

●NSns3.xel.nl2026-05-01 → 2026-06-13 · 3 obs

○ 2016-07-09 06:52:54
● 2026-05-01 21:47:48
● 2026-06-13 19:51:22

○NSshades07.rzone.de2015-08-11 → 2015-08-11 · 3 obs

● 2015-08-11 08:49:52
○ 2015-11-28 12:42:46
○ 2026-06-13 19:51:22

●MXmx1.xel.nl2026-05-01 → 2026-06-13 · 3 obs

○ 2015-11-28 12:42:46
● 2026-05-01 21:47:48
● 2026-06-13 19:51:22

●MXmx11.xel.nl2026-05-01 → 2026-06-13 · 3 obs

○ 2015-11-28 12:42:46
● 2026-05-01 21:47:48
● 2026-06-13 19:51:22

●MXmx2.xel.nl2026-05-01 → 2026-06-13 · 3 obs

○ 2015-11-28 12:42:46
● 2026-05-01 21:47:48
● 2026-06-13 19:51:22

●MXmx3.xel.nl2026-05-01 → 2026-06-13 · 3 obs

○ 2015-11-28 12:42:46
● 2026-05-01 21:47:48
● 2026-06-13 19:51:22

○MXsmtp.rzone.de2015-08-11 → 2015-08-11 · 3 obs

● 2015-08-11 08:49:52
○ 2015-11-28 12:42:46
○ 2026-06-13 19:51:22

○A176.9.83.2292016-02-24 → 2016-02-24 · 4 obs

○ 2015-11-28 12:42:46
● 2016-02-24 07:55:58
○ 2016-07-09 06:52:54
○ 2026-06-13 19:51:22

●A2001:7b8:620:1::d59a:e2232026-05-01 → 2026-06-13 · 3 obs

○ 2016-07-09 06:52:54
● 2026-05-01 21:47:48
● 2026-06-13 19:51:22

●A213.154.226.352026-05-01 → 2026-06-13 · 3 obs

○ 2016-07-09 06:52:54
● 2026-05-01 21:47:48
● 2026-06-13 19:51:22

○A2a01:238:20a:202:1088::2015-08-11 → 2015-08-11 · 3 obs

● 2015-08-11 08:49:52
○ 2015-11-28 12:42:46
○ 2026-06-13 19:51:22

○A81.169.145.882015-08-11 → 2015-08-11 · 3 obs

● 2015-08-11 08:49:52
○ 2015-11-28 12:42:46
○ 2026-06-13 19:51:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
knowmax.de	ns3.xel.nl, ns2.xel.nl, ns1.xel.nl	-

✅ Authoritative Response

Server:78.46.142.112

NS records: ns3.xel.nl, ns2.xel.nl, ns1.xel.nl

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1223ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`213.154.226.35`
AAAA	1	`2001:7b8:620:1::d59a:e223`
NS	3	`ns3.xel.nl, ns1.xel.nl...`
MX	4	`mx3.xel.nl (pri: 15), mx11.xel.nl (pri: 10)...`
TXT	1	`v=spf1 a mx -all`
SOA	1	`ns1.xel.nl hostmaster.knowmax.de`

Analysis

IP Addresses

knowmax.de points to two IP numbers: 213.154.226.35 and 2001:7b8:620:1::d59a:e223.

Two other host names, along with onore.nl, iktest.nl and fagt.nl, also share IP numbers with knowmax.de.

Name Servers

knowmax.de carries NS records delegating to ns1.xel.nl, ns2.xel.nl and ns3.xel.nl.

knowmax.de partially shares its NS delegation with several other domains, including kitetonic.com, kasteelheeswijk.nl, emarkt.nl and two others.

ns1.xel.nl, ns2.xel.nl and ns3.xel.nl are three hostnames that each resolve to a pair of IP addresses: ns1.xel.nl to 213.154.226.10 and 2001:7b8:620:1::d59a:e20a, ns2.xel.nl to 213.154.226.20 and 2001:7b8:620:1::d59a:e214, and ns3.xel.nl to 78.46.142.112 and 2a01:4f8:190:610e::2.

Mail Servers

knowmax.de is handled by four mail servers, mx11.xel.nl, mx1.xel.nl, mx2.xel.nl and mx3.xel.nl.

There is at least a partial MX overlap between knowmax.de and other domains, including valuebasedmanagement.com, expotise.com, dpfactory.de and two others.

mx11.xel.nl, mx1.xel.nl, mx2.xel.nl and mx3.xel.nl each carry two IP addresses. mx11.xel.nl has 213.154.226.25 and 2001:7b8:620:1::d59a:e219; mx1.xel.nl has 213.154.226.4 and 2001:7b8:620:1::d59a:e204; mx2.xel.nl has 213.154.226.5 and 2001:7b8:620:1::d59a:e205; mx3.xel.nl has 213.154.226.3 and 2001:7b8:620:1::d59a:e203.