knowbe4.pro - robtex.com
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.orgawsdns-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.infohostmaster@donuts.email serial=1771273965 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns-1341.awsdns-39.org2026-03-17 → 2026-03-24 · 2 obs
● 2026-03-24 02:58:28
●NSns-137.awsdns-17.com2026-03-17 → 2026-03-24 · 2 obs
● 2026-03-24 02:58:28
●NSns-1950.awsdns-51.co.uk2026-03-17 → 2026-03-24 · 2 obs
● 2026-03-24 02:58:28
●NSns-517.awsdns-00.net2026-03-17 → 2026-03-24 · 2 obs
● 2026-03-24 02:58:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pro | a0.pro.afilias-nst.info, d0.pro.afilias-nst.org, b2.pro.afilias-nst.org, b0.pro.afilias-nst.org... | - |
| knowbe4.pro | ns-517.awsdns-00.net, ns-137.awsdns-17.com, ns-1950.awsdns-51.co.uk, ns-1341.awsdns-39.org | - |
✅ Authoritative Response
Server:205.251.192.137
NS records: ns-517.awsdns-00.net, ns-137.awsdns-17.com, ns-1950.awsdns-51.co.uk, ns-1341.awsdns-39.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowbe4.pro (unsigned zone)
⏱️ Timing
Total: 651ms | 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 is delegated to four 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 at least partially shares name servers with other domains, for example d3i2s6qc7omtwq.cloudfront.net, lasertag.com, hue135.com, d2kz33kzdwof6l.cloudfront.net and wedoresorts.com.
these name servers are commonly used with ns-900.awsdns-48.net, ns-1402.awsdns-47.org, ns-1886.awsdns-43.co.uk, ns-986.awsdns-59.net, ns-1067.awsdns-05.org and ns-1635.awsdns-12.co.uk.
Host names with two IP numbers:
ns-137.awsdns-17.com points to: 2600:9000:5300:8900::1 and 205.251.192.137
ns-517.awsdns-00.net points to: 2600:9000:5302:500::1 and 205.251.194.5
ns-1341.awsdns-39.org points to: 2600:9000:5305:3d00::1 and 205.251.197.61
ns-1950.awsdns-51.co.uk points to: 2600:9000:5307:9e00::1 and 205.251.199.158