knowbe4.work - dns.ninja

`knowbe4.work`

DNSSEC	⚠️ Not signed
NS	`ns1-01.azure-dns.com` ⭐
		A	2603:1061:0:700::1^{🇺🇸 Microsoft2603:1000::/25 MICROSOFT}
			PTR	`ns1-01.azure-dns.com`
		A	13.107.236.1^{🇺🇸 Microsoft13.104.0.0/14 MICROSOFT}
			PTR	`ns1-01.azure-dns.com`
NS	`ns2-01.azure-dns.net`
		A	2620:1ec:8ec:700::1^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns2-01.azure-dns.net`
		A	150.171.21.1^{🇺🇸 Microsoft150.171.0.0/16 MICROSOFT}
			PTR	`ns2-01.azure-dns.net`
NS	`ns3-01.azure-dns.org`
		A	2a01:111:4000:700::1^{🇬🇧 Microsoft2a01:111:4000::/36}
			PTR	`ns3-01.azure-dns.org`
		A	204.14.183.1^{🇺🇸 Microsoft204.14.180.0/22}
			PTR	`ns3-01.azure-dns.org`
NS	`ns4-01.azure-dns.info`
		A	2620:1ec:bda:700::1^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns4-01.azure-dns.info`
		A	208.84.5.1^{🇺🇸 Microsoft208.84.0.0/21 MICROSOFT}
			PTR	`ns4-01.azure-dns.info`
MX	`mxa.mailgun.org` ⭐
		A	34.149.254.5^{🇺🇸 Google34.148.0.0/14}
			PTR	`5.254.149.34.bc.googleusercontent.com`
MX	`mxb.mailgun.org` ⭐
		A	34.149.254.5^{🇺🇸 Google34.148.0.0/14}
			PTR	`5.254.149.34.bc.googleusercontent.com`
TXT	`v=spf1 include:mailgun.org ~all`
SOA	`ns1-01.azure-dns.com`azuredns-hostmaster@microsoft.com serial=1

`work`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.work` ⭐
	NS	`b.nic.work`
	NS	`c.nic.work`
	NS	`x.nic.work`
	NS	`y.nic.work`
	NS	`z.nic.work`
	SOA	`a.nic.work`admin@tldns.godaddy serial=1785660570

⚠️ On DNS blocklist: tif
⚠️ On DNS blocklist: spam-tlds

Same first word

knowbe4.io

knowbe4.co

knowbe4.be

knowbe4.ai

knowbe4.mobi

knowbe4.cn

knowbe4.tv

knowbe4.de

knowbe4.net

knowbe4.xyz

knowbe4.at

knowbe4.blog

knowbe4.club

knowbe4.link

knowbe4.it

knowbe4.jp

knowbe4.com.cn

knowbe4.work

knowbe4.us

knowbe4.sk

knowbe4.eu

knowbe4.live

knowbe4.pro

knowbe4.guru

knowbe4.cloud

knowbe4.info

knowbe4.org

knowbe4.ninja

knowbe4.com

knowbe4.ch

knowbe4.biz

knowbe4.me

knowbe4.cz

Similar names

know4be.com

knwobe4.com

DNS History

10 records (6 active, 4 former)

○NSns03.domaincontrol.com2026-05-07 → 2026-05-07 · 2 obs

● 2026-05-07 03:17:38
○ 2026-08-02 09:16:18

○NSns04.domaincontrol.com2026-05-07 → 2026-05-07 · 2 obs

● 2026-05-07 03:17:38
○ 2026-08-02 09:16:18

●NSns1-01.azure-dns.com2026-08-02 → 2026-08-02 · 2 obs

○ 2026-05-07 03:17:38
● 2026-08-02 09:16:18

●NSns2-01.azure-dns.net2026-08-02 → 2026-08-02 · 2 obs

○ 2026-05-07 03:17:38
● 2026-08-02 09:16:18

●NSns3-01.azure-dns.org2026-08-02 → 2026-08-02 · 2 obs

○ 2026-05-07 03:17:38
● 2026-08-02 09:16:18

●NSns4-01.azure-dns.info2026-08-02 → 2026-08-02 · 2 obs

○ 2026-05-07 03:17:38
● 2026-08-02 09:16:18

●MXmxa.mailgun.org2026-08-02 → 2026-08-02 · 1 obs

● 2026-08-02 09:16:18

●MXmxb.mailgun.org2026-08-02 → 2026-08-02 · 1 obs

● 2026-08-02 09:16:18

○A15.197.148.332026-05-07 → 2026-05-07 · 2 obs

● 2026-05-07 03:17:38
○ 2026-08-02 09:16:18

○A3.33.130.1902026-05-07 → 2026-05-07 · 2 obs

● 2026-05-07 03:17:38
○ 2026-08-02 09:16:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
work	a.nic.work, b.nic.work, c.nic.work, x.nic.work...	-
knowbe4.work	ns1-01.azure-dns.com, ns2-01.azure-dns.net, ns3-01.azure-dns.org, ns4-01.azure-dns.info	-

✅ Authoritative Response

Server:204.14.183.1

NS records: ns1-01.azure-dns.com, ns2-01.azure-dns.net, ns3-01.azure-dns.org, ns4-01.azure-dns.info

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowbe4.work (unsigned zone)

⏱️ Timing

Total: 213ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns1-01.azure-dns.com, ns2-01.azure-dns.net...`
MX	2	`mxa.mailgun.org (pri: 10), mxb.mailgun.org (pri: 10)`
TXT	1	`v=spf1 include:mailgun.org ~all`
SOA	1	`ns1-01.azure-dns.com azuredns-hostmaster`

Analysis

Name Servers

Four name servers handle the delegation for knowbe4.work: ns1-01.azure-dns.com, ns4-01.azure-dns.info, ns2-01.azure-dns.net and ns3-01.azure-dns.org.

There is at least partial name server overlap between knowbe4.work and other domains — 238.16.182.in-addr.arpa, hs-au.com.au, 80min.net and two more among them.

All four hostnames — ns1-01.azure-dns.com, ns4-01.azure-dns.info, ns2-01.azure-dns.net and ns3-01.azure-dns.org — resolve to two IP numbers apiece: ns1-01.azure-dns.com to 13.107.236.1 and 2603:1061:0:700::1; ns4-01.azure-dns.info to 208.84.5.1 and 2620:1ec:bda:700::1; ns2-01.azure-dns.net to 150.171.21.1 and 2620:1ec:8ec:700::1; ns3-01.azure-dns.org to 204.14.183.1 and 2a01:111:4000:700::1.

Mail Servers

knowbe4.work uses two mail servers, mxa.mailgun.org and mxb.mailgun.org.

The mail server setup of knowbe4.work matches that of other domains such as akudaikan.com, healthdate.com, clangsoul.com and two others.

At least some of the mail servers used by knowbe4.work are shared with other domains: retireease.com, wonderflow.co, slemma.com and two others among them.

mxa.mailgun.org and mxb.mailgun.org share one IP address between them — 34.149.254.5.

These two host names — mxa.mailgun.org and mxb.mailgun.org — each point to 34.149.254.5 IP addresses.