cdnbook.com - robtex.com
cdnbook.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-923.awsdns-51.net ⭐ | ||||||
| A | 2600:9000:5303:9b00::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront | ||||||
| PTR | ns-923.awsdns-51.net | ||||||
| A | 205.251.195.155🇺🇸 Amazon205.251.195.0/24 prefix | ||||||
| PTR | ns-923.awsdns-51.net | ||||||
| NS | ns-1062.awsdns-04.org | ||||||
| A | 2600:9000:5304:2600::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1062.awsdns-04.org | ||||||
| A | 205.251.196.38🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1062.awsdns-04.org | ||||||
| NS | ns-1724.awsdns-23.co.uk | ||||||
| A | 2600:9000:5306:bc00::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront | ||||||
| PTR | ns-1724.awsdns-23.co.uk | ||||||
| A | 205.251.198.188🇺🇸 Amazon205.251.198.0/24 prefix | ||||||
| PTR | ns-1724.awsdns-23.co.uk | ||||||
| NS | ns-294.awsdns-36.com | ||||||
| A | 2600:9000:5301:2600::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-294.awsdns-36.com | ||||||
| A | 205.251.193.38🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-294.awsdns-36.com | ||||||
| SOA | ns-923.awsdns-51.netawsdns-hostmaster@amazon.com serial=1 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1776999896 | ||||||
Same first word
cdnbook.com |
Similar names
DNS History
11 records (4 active, 7 former)
○NSjm1.dns.com2021-03-05 → 2021-03-05 · 4 obs
● 2021-03-05 21:57:00
○ 2026-04-09 08:26:56
○ 2026-04-24 03:16:46
○NSjm2.dns.com2021-03-05 → 2021-03-05 · 4 obs
● 2021-03-05 21:57:00
○ 2026-04-09 08:26:56
○ 2026-04-24 03:16:46
●NSns-1062.awsdns-04.org2026-04-09 → 2026-04-24 · 3 obs
● 2026-04-09 08:26:56
● 2026-04-24 03:16:46
●NSns-1724.awsdns-23.co.uk2026-04-09 → 2026-04-24 · 3 obs
● 2026-04-09 08:26:56
● 2026-04-24 03:16:46
●NSns-294.awsdns-36.com2026-04-09 → 2026-04-24 · 3 obs
● 2026-04-09 08:26:56
● 2026-04-24 03:16:46
●NSns-923.awsdns-51.net2026-04-09 → 2026-04-24 · 3 obs
● 2026-04-09 08:26:56
● 2026-04-24 03:16:46
○NSns1.digitalocean.com2019-02-18 → 2019-02-18 · 3 obs
○ 2021-03-05 21:57:00
○ 2026-04-24 03:16:46
○NSns2.digitalocean.com2019-02-18 → 2019-02-18 · 3 obs
○ 2021-03-05 21:57:00
○ 2026-04-24 03:16:46
○NSns3.digitalocean.com2019-02-18 → 2019-02-18 · 3 obs
○ 2021-03-05 21:57:00
○ 2026-04-24 03:16:46
○A67.198.183.1002021-03-05 → 2021-03-05 · 4 obs
● 2021-03-05 21:57:00
○ 2026-04-09 08:26:56
○ 2026-04-24 03:16:46
○A68.183.88.782019-02-18 → 2019-02-18 · 3 obs
○ 2021-03-05 21:57:00
○ 2026-04-24 03:16:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| cdnbook.com | ns-294.awsdns-36.com, ns-923.awsdns-51.net, ns-1062.awsdns-04.org, ns-1724.awsdns-23.co.uk | 2 records |
✅ Authoritative Response
Server:205.251.195.155
NS records: ns-294.awsdns-36.com, ns-923.awsdns-51.net, ns-1062.awsdns-04.org, ns-1724.awsdns-23.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cdnbook.com (unsigned zone)
⏱️ Timing
Total: 385ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1062.awsdns-04.org, ns-1724.awsdns-23.co.uk... |
| SOA | 1 | ns-923.awsdns-51.net awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-294.awsdns-36.com, ns-294.awsdns-36.com)
Analysis
Name Servers
cdnbook.com is delegated to four name servers: ns-294.awsdns-36.com, ns-923.awsdns-51.net, ns-1062.awsdns-04.org and ns-1724.awsdns-23.co.uk.
cdnbook.com shares name servers with other domains at least partially, for example ngt48cd.shop, 95.208.13.in-addr.arpa, tbfqspkqykdcljg.com, acbhcs.org and gepir.jp.
Host names with two IP numbers:
ns-294.awsdns-36.com points to: 2600:9000:5301:2600::1 and 205.251.193.38
ns-923.awsdns-51.net points to: 2600:9000:5303:9b00::1 and 205.251.195.155
ns-1062.awsdns-04.org points to: 2600:9000:5304:2600::1 and 205.251.196.38
ns-1724.awsdns-23.co.uk points to: 2600:9000:5306:bc00::1 and 205.251.198.188