nbcuext.com - robtex.com
nbcuext.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-143.awsdns-17.com ⭐ | ||||||
| A | 2600:9000:5300:8f00::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-143.awsdns-17.com | ||||||
| A | 205.251.192.143🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-143.awsdns-17.com | ||||||
| NS | ns-1149.awsdns-15.org | ||||||
| A | 2600:9000:5304:7d00::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1149.awsdns-15.org | ||||||
| A | 205.251.196.125🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1149.awsdns-15.org | ||||||
| NS | ns-1929.awsdns-49.co.uk | ||||||
| A | 2600:9000:5307:8900::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-1929.awsdns-49.co.uk | ||||||
| A | 205.251.199.137🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1929.awsdns-49.co.uk | ||||||
| NS | ns-837.awsdns-40.net | ||||||
| A | 2600:9000:5303:4500::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront | ||||||
| PTR | ns-837.awsdns-40.net | ||||||
| A | 205.251.195.69🇺🇸 Amazon205.251.195.0/24 prefix | ||||||
| PTR | ns-837.awsdns-40.net | ||||||
| MX | mail.nbcuext.com ⭐ | ||||||
| TXT | google-site-verification=RPfQv-wlKNULJzNcGMQ_Kfocuvg7YfnSpMYFWy25Iak | ||||||
| SOA | ns-143.awsdns-17.comawsdns-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=1774363897 | ||||||
Subdomains
mail.nbcuext.com |
Same first word
nbcuext.com |
Similar names
DNS History
5 records (5 active, 0 former)
●NSns-1149.awsdns-15.org2015-06-28 → 2026-03-24 · 2 obs
● 2026-03-24 15:08:24
●NSns-143.awsdns-17.com2015-06-28 → 2026-03-24 · 2 obs
● 2026-03-24 15:08:24
●NSns-1929.awsdns-49.co.uk2015-06-28 → 2026-03-24 · 2 obs
● 2026-03-24 15:08:24
●NSns-837.awsdns-40.net2015-06-28 → 2026-03-24 · 2 obs
● 2026-03-24 15:08:24
●MXmail.nbcuext.com2015-06-28 → 2026-03-24 · 2 obs
● 2026-03-24 15:08:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net, h.gtld-servers.net... | - |
| nbcuext.com | ns-143.awsdns-17.com, ns-837.awsdns-40.net, ns-1149.awsdns-15.org, ns-1929.awsdns-49.co.uk | 1 record |
✅ Authoritative Response
Server:205.251.199.137
NS records: ns-143.awsdns-17.com, ns-837.awsdns-40.net, ns-1149.awsdns-15.org, ns-1929.awsdns-49.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for nbcuext.com (unsigned zone)
⏱️ Timing
Total: 659ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1149.awsdns-15.org, ns-143.awsdns-17.com... |
| MX | 1 | mail.nbcuext.com (pri: 10) |
| TXT | 1 | google-site-verification=RPfQv-wlKNULJzN |
| SOA | 1 | ns-143.awsdns-17.com awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns-143.awsdns-17.com)
Analysis
Hierarchy
mail.nbcuext.com has nbcuext.com as its parent.
Name Servers
nbcuext.com is delegated to four name servers: ns-143.awsdns-17.com, ns-837.awsdns-40.net, ns-1149.awsdns-15.org and ns-1929.awsdns-49.co.uk.
nbcuext.com at least partially shares name servers with other domains such as servicecontrol.net, bus20.com, taicstraining.org, ssmmbook.com and stt-cars-request.com.
These name servers are commonly used alongside ns-1515.awsdns-61.org, ns-300.awsdns-37.com and ns-1589.awsdns-06.co.uk.
Host names with two IP numbers:
ns-143.awsdns-17.com points to 2600:9000:5300:8f00::1 and 205.251.192.143
ns-837.awsdns-40.net points to 2600:9000:5303:4500::1 and 205.251.195.69
ns-1149.awsdns-15.org points to 2600:9000:5304:7d00::1 and 205.251.196.125
ns-1929.awsdns-49.co.uk points to 2600:9000:5307:8900::1 and 205.251.199.137
Mail Servers
nbcuext.com is handled by a single mail server, mail.nbcuext.com.