knowbe4.io - robtex.com
knowbe4.io
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-565.awsdns-06.net ⭐ | ||||||
| A | 2600:9000:5302:3500::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-565.awsdns-06.net | ||||||
| A | 205.251.194.53🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-565.awsdns-06.net | ||||||
| NS | ns-1250.awsdns-28.org | ||||||
| A | 2600:9000:5304:e200::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1250.awsdns-28.org | ||||||
| A | 205.251.196.226🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1250.awsdns-28.org | ||||||
| NS | ns-190.awsdns-23.com | ||||||
| A | 2600:9000:5300:be00::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-190.awsdns-23.com | ||||||
| A | 205.251.192.190🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-190.awsdns-23.com | ||||||
| NS | ns-1928.awsdns-49.co.uk | ||||||
| A | 2600:9000:5307:8800::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-1928.awsdns-49.co.uk | ||||||
| A | 205.251.199.136🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1928.awsdns-49.co.uk | ||||||
| SOA | ns-565.awsdns-06.netawsdns-hostmaster@amazon.com serial=1 | ||||||
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1785847523 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns-1250.awsdns-28.org2026-07-23 → 2026-08-04 · 2 obs
● 2026-08-04 12:51:28
●NSns-190.awsdns-23.com2026-07-23 → 2026-08-04 · 2 obs
● 2026-08-04 12:51:28
●NSns-1928.awsdns-49.co.uk2026-07-23 → 2026-08-04 · 2 obs
● 2026-08-04 12:51:28
●NSns-565.awsdns-06.net2026-07-23 → 2026-08-04 · 2 obs
● 2026-08-04 12:51:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io | - |
| knowbe4.io | ns-190.awsdns-23.com, ns-565.awsdns-06.net, ns-1250.awsdns-28.org, ns-1928.awsdns-49.co.uk | - |
✅ Authoritative Response
Server:205.251.192.190
NS records: ns-190.awsdns-23.com, ns-565.awsdns-06.net, ns-1250.awsdns-28.org, ns-1928.awsdns-49.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowbe4.io (unsigned zone)
⏱️ Timing
Total: 433ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1250.awsdns-28.org, ns-190.awsdns-23.com... |
| SOA | 1 | ns-565.awsdns-06.net awsdns-hostmaster.a |
Analysis
Name Servers
The domain knowbe4.io is delegated to these four name servers: ns-190.awsdns-23.com, ns-565.awsdns-06.net, ns-1250.awsdns-28.org and ns-1928.awsdns-49.co.uk.
knowbe4.io has at least partial name server overlap with other domains, such as 0.122.119.61.in-addr.arpa, consistometro.es, d1csu1a94tun35.cloudfront.net and two others.
ns-190.awsdns-23.com, ns-565.awsdns-06.net, ns-1250.awsdns-28.org and ns-1928.awsdns-49.co.uk all point to exactly two IP numbers each: ns-190.awsdns-23.com → 205.251.192.190 and 2600:9000:5300:be00::1; ns-565.awsdns-06.net → 205.251.194.53 and 2600:9000:5302:3500::1; ns-1250.awsdns-28.org → 205.251.196.226 and 2600:9000:5304:e200::1; ns-1928.awsdns-49.co.uk → 205.251.199.136 and 2600:9000:5307:8800::1.