nbcua.com - robtex.com

nbcua.com

DNSSEC⚠️ Not signed
A3.138.217.178🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix
PTRec2-3-138-217-178.us-east-2.compute.amazonaws.com
NSa.ns.nbcua.com ⭐ ⚠️ Not in parent delegation
A18.236.54.105🇺🇸 Amazon18.236.0.0/15 EC2 PDX prefix
PTRec2-18-236-54-105.us-west-2.compute.amazonaws.com
NSb.ns.nbcua.com ⚠️ Not in parent delegation
A18.213.86.136🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix
PTRec2-18-213-86-136.compute-1.amazonaws.com
NSforward.000cheapdomains.com ⚠️ Not in zone NS records
A18.236.54.105🇺🇸 Amazon18.236.0.0/15 EC2 PDX prefix
PTRec2-18-236-54-105.us-west-2.compute.amazonaws.com
NSns2.000cheapdomains.com ⚠️ Not in zone NS records
A18.213.86.136🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix
PTRec2-18-213-86-136.compute-1.amazonaws.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4023:c06::1a🇺🇸 Google2607:f8b0::/32
PTRdz-in-f26.1e100.net
A142.250.101.27🇺🇸 Google142.250.101.0/24
PTRdz-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48
A108.177.123.26🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.27🇺🇸 Google172.253.116.0/24
PTRdj-in-f27.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1a🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f26.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c00::1a🇧🇪 Google2a00:1450:400c::/48
PTRws-in-f26.1e100.net
PTRws-in-x1a.1e100.net
A173.194.76.26🇺🇸 Google173.194.76.0/24
PTRws-in-f26.1e100.net
TXTMS=ms14548484
SOAa.ns.nbcua.comhostmaster@nbcua.com serial=1776018962

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1776018052

Same first word

nbcua.com

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DNS History

15 records (10 active, 5 former)

20162017201820192020202120222023202420252026NSa.ns.nbcua.comb.ns.nbcua.comforward.000cheapdomains.comns2.000cheapdomains.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comnbcua.com.s10a1.psmtp.comnbcua.com.s10a2.psmtp.comnbcua.com.s10b1.psmtp.comnbcua.com.s10b2.psmtp.comA3.138.217.17864.34.187.146
●NSa.ns.nbcua.com2015-05-19 → 2026-04-12 · 2 obs
● 2015-05-19 06:50:40
● 2026-04-12 18:38:10
●NSb.ns.nbcua.com2015-05-19 → 2026-04-12 · 2 obs
● 2015-05-19 06:50:40
● 2026-04-12 18:38:10
●NSforward.000cheapdomains.com2026-03-26 → 2026-04-12 · 3 obs
○ 2015-05-19 06:50:40
● 2026-03-26 22:24:06
● 2026-04-12 18:38:10
●NSns2.000cheapdomains.com2026-03-26 → 2026-04-12 · 3 obs
○ 2015-05-19 06:50:40
● 2026-03-26 22:24:06
● 2026-04-12 18:38:10
●MXalt1.aspmx.l.google.com2015-10-14 → 2026-04-12 · 3 obs
○ 2015-05-19 06:50:40
● 2015-10-14 15:06:38
● 2026-04-12 18:38:10
●MXalt2.aspmx.l.google.com2015-10-14 → 2026-04-12 · 3 obs
○ 2015-05-19 06:50:40
● 2015-10-14 15:06:38
● 2026-04-12 18:38:10
●MXalt3.aspmx.l.google.com2015-10-14 → 2026-04-12 · 3 obs
○ 2015-05-19 06:50:40
● 2015-10-14 15:06:38
● 2026-04-12 18:38:10
●MXalt4.aspmx.l.google.com2015-10-14 → 2026-04-12 · 3 obs
○ 2015-05-19 06:50:40
● 2015-10-14 15:06:38
● 2026-04-12 18:38:10
●MXaspmx.l.google.com2015-10-14 → 2026-04-12 · 3 obs
○ 2015-05-19 06:50:40
● 2015-10-14 15:06:38
● 2026-04-12 18:38:10
○MXnbcua.com.s10a1.psmtp.com2015-05-19 → 2015-05-19 · 3 obs
● 2015-05-19 06:50:40
○ 2015-10-14 15:06:38
○ 2026-04-12 18:38:10
○MXnbcua.com.s10a2.psmtp.com2015-05-19 → 2015-05-19 · 3 obs
● 2015-05-19 06:50:40
○ 2015-10-14 15:06:38
○ 2026-04-12 18:38:10
○MXnbcua.com.s10b1.psmtp.com2015-05-19 → 2015-05-19 · 3 obs
● 2015-05-19 06:50:40
○ 2015-10-14 15:06:38
○ 2026-04-12 18:38:10
○MXnbcua.com.s10b2.psmtp.com2015-05-19 → 2015-05-19 · 3 obs
● 2015-05-19 06:50:40
○ 2015-10-14 15:06:38
○ 2026-04-12 18:38:10
●A3.138.217.1782026-03-26 → 2026-04-12 · 3 obs
○ 2020-11-22 02:01:38
● 2026-03-26 22:24:06
● 2026-04-12 18:38:10
○A64.34.187.1462015-05-19 → 2020-11-22 · 4 obs
● 2015-05-19 06:50:40
● 2020-11-22 02:01:38
○ 2026-03-26 22:24:06
○ 2026-04-12 18:38:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, m.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net...-
nbcua.comns2.000cheapdomains.com, forward.000cheapdomains.com2 records

✅ Authoritative Response

Server:18.236.54.105

NS records: ns2.000cheapdomains.com, forward.000cheapdomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nbcua.com (unsigned zone)

⏱️ Timing

Total: 291ms | Queries: -

📄 Records

TypeCountSample Data
A13.138.217.178
NS2a.ns.nbcua.com, b.ns.nbcua.com
MX5alt4.aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 5)...
TXT1MS=ms14548484
SOA1a.ns.nbcua.com hostmaster.nbcua.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.000cheapdomains.com, forward.000cheapdomains.com)

Analysis

IP Addresses

nbcua.com points to a single IP address: 3.138.217.178.

Other host names such as njtaxes.com, tresware.com, ec2-3-138-217-178.us-east-2.compute.amazonaws.com, idealmgt.com and hillary.com share IP numbers with nbcua.com.

Name Servers

nbcua.com is delegated to four name servers: forward.000cheapdomains.com, ns2.000cheapdomains.com, a.ns.nbcua.com and b.ns.nbcua.com.

At least part of the name servers for nbcua.com are shared with other domains, for instance catalinaswim.com, camnewtonisadouche.com, xizeta.com, brainamp.com and catalinasportswear.com.

Host names with a single IP address

The host name forward.000cheapdomains.com points to 18.236.54.105.

The host name ns2.000cheapdomains.com points to 18.213.86.136.

The host name a.ns.nbcua.com points to 18.236.54.105.

The host name b.ns.nbcua.com points to 18.213.86.136.

Host names pointing to 18.236.54.105: forward.000cheapdomains.com and a.ns.nbcua.com.

Host names pointing to 18.213.86.136: ns2.000cheapdomains.com and b.ns.nbcua.com.

Mail Servers

nbcua.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

nbcua.com shares at least some mail servers with other domains, for example ns500737.ns500737.ns500724.ns500724.ns500599.ns500737.ns500599.ns500599.ns500599.ns500737.ns500599.ns500631.www.yummyflingsfinder.com, amaranthborsuk.com, ns500759.ns500759.ns500758.ns500736.ns500736.ns500698.ns500698.ns500698.ns500736.ns500698.ns500698.ns500619.ns500619.ns500576.ns500619.trackreceptor.com, ns500734.ns500693.ns500693.ns500734.ns500693.ns500699.ns500734.ns500734.ns500734.ns500588.ns500699.ns500588.ns500588.ns500693.ns500588.ns500588.dtrkdll.com and levendos.com.

these mail servers are often used together with aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers: aspmx.l.google.com points to 2607:f8b0:4023:c06::1a and 142.250.101.27; alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1a and 108.177.123.26; alt2.aspmx.l.google.com points to 2a00:1450:400b:c02::1a and 172.253.116.27; alt3.aspmx.l.google.com points to 2a00:1450:4009:c0f::1a and 192.178.223.26; alt4.aspmx.l.google.com points to 2a00:1450:400c:c00::1a and 173.194.76.26.