knowbe4.pro - dns.ninja

`knowbe4.pro`

DNSSEC	⚠️ Not signed
NS	`ns-1341.awsdns-39.org` ⭐
		A	2600:9000:5305:3d00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1341.awsdns-39.org`
		A	205.251.197.61^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1341.awsdns-39.org`
NS	`ns-137.awsdns-17.com`
		A	2600:9000:5300:8900::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-137.awsdns-17.com`
		A	205.251.192.137^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-137.awsdns-17.com`
NS	`ns-1950.awsdns-51.co.uk`
		A	2600:9000:5307:9e00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1950.awsdns-51.co.uk`
		A	205.251.199.158^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1950.awsdns-51.co.uk`
NS	`ns-517.awsdns-00.net`
		A	2600:9000:5302:500::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-517.awsdns-00.net`
		A	205.251.194.5^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-517.awsdns-00.net`
SOA	`ns-1341.awsdns-39.org`awsdns-hostmaster@amazon.com serial=1

`pro`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.pro.afilias-nst.info` ⭐
	NS	`a2.pro.afilias-nst.info`
	NS	`b0.pro.afilias-nst.org`
	NS	`b2.pro.afilias-nst.org`
	NS	`c0.pro.afilias-nst.info`
	NS	`d0.pro.afilias-nst.org`
	SOA	`a0.pro.afilias-nst.info`hostmaster@donuts.email serial=1785646317

Same first word

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knowbe4.guru

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Similar names

know4be.com

knwobe4.com

DNS History

4 records (4 active, 0 former)

●NSns-1341.awsdns-39.org2026-03-17 → 2026-08-02 · 2 obs

● 2026-03-17 12:05:58
● 2026-08-02 05:05:06

●NSns-137.awsdns-17.com2026-03-17 → 2026-08-02 · 2 obs

● 2026-03-17 12:05:58
● 2026-08-02 05:05:06

●NSns-1950.awsdns-51.co.uk2026-03-17 → 2026-08-02 · 2 obs

● 2026-03-17 12:05:58
● 2026-08-02 05:05:06

●NSns-517.awsdns-00.net2026-03-17 → 2026-08-02 · 2 obs

● 2026-03-17 12:05:58
● 2026-08-02 05:05:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pro	b2.pro.afilias-nst.org, a0.pro.afilias-nst.info, d0.pro.afilias-nst.org, a2.pro.afilias-nst.info...	-
knowbe4.pro	ns-1341.awsdns-39.org, ns-517.awsdns-00.net, ns-137.awsdns-17.com, ns-1950.awsdns-51.co.uk	-

✅ Authoritative Response

Server:205.251.199.158

NS records: ns-1341.awsdns-39.org, ns-517.awsdns-00.net, ns-137.awsdns-17.com, ns-1950.awsdns-51.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowbe4.pro (unsigned zone)

⏱️ Timing

Total: 1395ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns-1341.awsdns-39.org, ns-137.awsdns-17.com...`
SOA	1	`ns-1341.awsdns-39.org awsdns-hostmaster.`

Analysis

Name Servers

knowbe4.pro has four authoritative name servers: ns-137.awsdns-17.com, ns-517.awsdns-00.net, ns-1341.awsdns-39.org and ns-1950.awsdns-51.co.uk.

knowbe4.pro partially shares its NS delegation with several other domains, including d3i2s6qc7omtwq.cloudfront.net, lasertag.com, hue135.com and two others.

ns-137.awsdns-17.com, ns-517.awsdns-00.net, ns-1341.awsdns-39.org and ns-1950.awsdns-51.co.uk each carry two IP addresses. ns-137.awsdns-17.com has 205.251.192.137 and 2600:9000:5300:8900::1; ns-517.awsdns-00.net has 205.251.194.5 and 2600:9000:5302:500::1; ns-1341.awsdns-39.org has 205.251.197.61 and 2600:9000:5305:3d00::1; ns-1950.awsdns-51.co.uk has 205.251.199.158 and 2600:9000:5307:9e00::1.