century21nc.com - robtex.com
century21nc.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 3.21.30.236🇺🇸 Amazon3.20.0.0/14 EC2 CMH prefix | ||||||
| PTR | ec2-3-21-30-236.us-east-2.compute.amazonaws.com | ||||||
| A | 3.138.52.249🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix | ||||||
| NS | ns-1350.awsdns-40.org ⭐ | ||||||
| A | 2600:9000:5305:4600::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront | ||||||
| PTR | ns-1350.awsdns-40.org | ||||||
| A | 205.251.197.70🇺🇸 Amazon205.251.197.0/24 prefix | ||||||
| PTR | ns-1350.awsdns-40.org | ||||||
| NS | ns-1735.awsdns-24.co.uk | ||||||
| A | 2600:9000:5306:c700::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront | ||||||
| PTR | ns-1735.awsdns-24.co.uk | ||||||
| A | 205.251.198.199🇺🇸 Amazon205.251.198.0/24 prefix | ||||||
| PTR | ns-1735.awsdns-24.co.uk | ||||||
| NS | ns-420.awsdns-52.com | ||||||
| A | 2600:9000:5301:a400::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-420.awsdns-52.com | ||||||
| A | 205.251.193.164🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-420.awsdns-52.com | ||||||
| NS | ns-552.awsdns-05.net | ||||||
| A | 2600:9000:5302:2800::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-552.awsdns-05.net | ||||||
| A | 205.251.194.40🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-552.awsdns-05.net | ||||||
| SOA | ns-1350.awsdns-40.orgawsdns-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=1778233571 | ||||||
Same first word
century21nc.com |
Similar names
DNS History
13 records (6 active, 7 former)
●NSns-1350.awsdns-40.org2019-01-30 → 2026-05-08 · 3 obs
● 2019-01-30 03:31:58
● 2026-05-08 10:06:06
●NSns-1735.awsdns-24.co.uk2019-01-30 → 2026-05-08 · 3 obs
● 2019-01-30 03:31:58
● 2026-05-08 10:06:06
●NSns-420.awsdns-52.com2019-01-30 → 2026-05-08 · 3 obs
● 2019-01-30 03:31:58
● 2026-05-08 10:06:06
●NSns-552.awsdns-05.net2019-01-30 → 2026-05-08 · 3 obs
● 2019-01-30 03:31:58
● 2026-05-08 10:06:06
○NSns1.savvis.net2015-07-19 → 2017-01-01 · 4 obs
● 2017-01-01 07:08:26
○ 2019-01-30 03:31:58
○ 2026-05-08 10:06:06
○NSns2.savvis.net2015-07-19 → 2017-01-01 · 4 obs
● 2017-01-01 07:08:26
○ 2019-01-30 03:31:58
○ 2026-05-08 10:06:06
○NSns3.savvis.net2015-07-19 → 2017-01-01 · 4 obs
● 2017-01-01 07:08:26
○ 2019-01-30 03:31:58
○ 2026-05-08 10:06:06
○A18.188.66.142019-01-30 → 2019-01-30 · 4 obs
● 2019-01-30 03:31:58
○ 2026-05-05 12:21:16
○ 2026-05-08 10:06:06
○A18.219.169.932019-01-30 → 2019-01-30 · 4 obs
● 2019-01-30 03:31:58
○ 2026-05-05 12:21:16
○ 2026-05-08 10:06:06
●A3.138.52.2492026-05-05 → 2026-05-08 · 3 obs
● 2026-05-05 12:21:16
● 2026-05-08 10:06:06
●A3.21.30.2362026-05-08 → 2026-05-08 · 3 obs
● 2026-05-08 06:47:54
● 2026-05-08 10:06:06
○A3.23.162.842026-05-05 → 2026-05-05 · 4 obs
● 2026-05-05 12:21:16
○ 2026-05-08 06:47:54
○ 2026-05-08 10:06:06
○A64.37.197.592015-07-19 → 2017-01-01 · 4 obs
● 2017-01-01 07:08:26
○ 2019-01-30 03:31:58
○ 2026-05-08 10:06:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, f.gtld-servers.net, m.gtld-servers.net, d.gtld-servers.net... | - |
| century21nc.com | ns-552.awsdns-05.net, ns-420.awsdns-52.com, ns-1735.awsdns-24.co.uk, ns-1350.awsdns-40.org | 2 records |
✅ Authoritative Response
Server:205.251.197.70
NS records: ns-552.awsdns-05.net, ns-420.awsdns-52.com, ns-1735.awsdns-24.co.uk, ns-1350.awsdns-40.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for century21nc.com (unsigned zone)
⏱️ Timing
Total: 831ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 3.138.52.249, 3.21.30.236 |
| NS | 4 | ns-1350.awsdns-40.org, ns-1735.awsdns-24.co.uk... |
| SOA | 1 | ns-1350.awsdns-40.org awsdns-hostmaster. |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-420.awsdns-52.com, ns-420.awsdns-52.com)
Analysis
IP Addresses
century21nc.com resolves to two IP numbers: 3.21.30.236 and 3.138.52.249.
other host names including century21losangeles.net, www.c21online.com, 21realestate.com, century22.info and century21northdakota.com share IP numbers with century21nc.com.
Name Servers
century21nc.com is delegated to four name servers: ns-420.awsdns-52.com, ns-552.awsdns-05.net, ns-1350.awsdns-40.org and ns-1735.awsdns-24.co.uk.
century21nc.com at least partially shares name servers with other domains, for instance femtjugo.se, aimass.net, nalawo.com, goimage.com.br and goldbach-targeting.ch.
Host names with two IP numbers:
ns-420.awsdns-52.com points to 2600:9000:5301:a400::1 and 205.251.193.164; ns-552.awsdns-05.net points to 2600:9000:5302:2800::1 and 205.251.194.40; ns-1350.awsdns-40.org points to 2600:9000:5305:4600::1 and 205.251.197.70; ns-1735.awsdns-24.co.uk points to 2600:9000:5306:c700::1 and 205.251.198.199.