century21or.com - robtex.com
century21or.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-782.awsdns-33.net ⭐ | ||||||
| A | 2600:9000:5303:e00::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront | ||||||
| PTR | ns-782.awsdns-33.net | ||||||
| A | 205.251.195.14🇺🇸 Amazon205.251.195.0/24 prefix | ||||||
| PTR | ns-782.awsdns-33.net | ||||||
| NS | ns-1455.awsdns-53.org | ||||||
| A | 2600:9000:5305:af00::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront | ||||||
| PTR | ns-1455.awsdns-53.org | ||||||
| A | 205.251.197.175🇺🇸 Amazon205.251.197.0/24 prefix | ||||||
| PTR | ns-1455.awsdns-53.org | ||||||
| NS | ns-176.awsdns-22.com | ||||||
| A | 2600:9000:5300:b000::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-176.awsdns-22.com | ||||||
| A | 205.251.192.176🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-176.awsdns-22.com | ||||||
| NS | ns-1828.awsdns-36.co.uk | ||||||
| A | 2600:9000:5307:2400::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-1828.awsdns-36.co.uk | ||||||
| A | 205.251.199.36🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1828.awsdns-36.co.uk | ||||||
| SOA | ns-782.awsdns-33.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=1778362266 | ||||||
Same first word
century21or.com |
DNS History
11 records (6 active, 5 former)
●NSns-1455.awsdns-53.org2026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:24:42
● 2026-05-09 21:42:28
●NSns-176.awsdns-22.com2026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:24:42
● 2026-05-09 21:42:28
●NSns-1828.awsdns-36.co.uk2026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:24:42
● 2026-05-09 21:42:28
●NSns-782.awsdns-33.net2026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:24:42
● 2026-05-09 21:42:28
○NSns1.savvis.net2015-06-28 → 2017-03-30 · 4 obs
● 2017-03-30 10:11:02
○ 2026-05-05 12:24:42
○ 2026-05-09 21:42:28
○NSns2.savvis.net2015-06-28 → 2017-03-30 · 4 obs
● 2017-03-30 10:11:02
○ 2026-05-05 12:24:42
○ 2026-05-09 21:42:28
○NSns3.savvis.net2015-06-28 → 2017-03-30 · 4 obs
● 2017-03-30 10:11:02
○ 2026-05-05 12:24:42
○ 2026-05-09 21:42:28
●A3.138.52.2492026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:24:42
● 2026-05-09 21:42:28
●A3.21.30.2362026-05-08 → 2026-05-09 · 3 obs
● 2026-05-08 06:47:54
● 2026-05-09 21:42:28
○A3.23.162.842026-05-05 → 2026-05-05 · 4 obs
● 2026-05-05 12:24:42
○ 2026-05-08 06:47:54
○ 2026-05-09 21:42:28
○A64.37.197.592015-06-28 → 2017-03-30 · 4 obs
● 2017-03-30 10:11:02
○ 2026-05-05 12:24:42
○ 2026-05-09 21:42:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, g.gtld-servers.net, k.gtld-servers.net, m.gtld-servers.net... | - |
| century21or.com | ns-176.awsdns-22.com, ns-782.awsdns-33.net, ns-1828.awsdns-36.co.uk, ns-1455.awsdns-53.org | 2 records |
✅ Authoritative Response
Server:205.251.197.175
NS records: ns-176.awsdns-22.com, ns-782.awsdns-33.net, ns-1828.awsdns-36.co.uk, ns-1455.awsdns-53.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for century21or.com (unsigned zone)
⏱️ Timing
Total: 391ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 3.138.52.249, 3.21.30.236 |
| NS | 4 | ns-1455.awsdns-53.org, ns-176.awsdns-22.com... |
| SOA | 1 | ns-782.awsdns-33.net awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-176.awsdns-22.com, ns-176.awsdns-22.com)
Analysis
IP Addresses
century21or.com points to two IP numbers: 3.21.30.236 and 3.138.52.249.
Other host names such as wwwcentury21bobcapes.com, www.century21smorgages.com, c21newyork.com, century21nd.com and century21nebraska.com share IP numbers with century21or.com.
Name Servers
century21or.com is delegated to four name servers: ns-176.awsdns-22.com, ns-782.awsdns-33.net, ns-1455.awsdns-53.org and ns-1828.awsdns-36.co.uk.
At least part of the name servers for century21or.com are shared with other domains, for instance helcg.net, weblink.jp, deow9bq0xqvbj.cloudfront.net, fortheselfmade.com and omdperformance.co.uk.
These name servers are often used together with ns-488.awsdns-61.com, ns-1134.awsdns-13.org and ns-1851.awsdns-39.co.uk.
Host names with two IP numbers:
ns-176.awsdns-22.com points to: 2600:9000:5300:b000::1 and 205.251.192.176
ns-782.awsdns-33.net points to: 2600:9000:5303:e00::1 and 205.251.195.14
ns-1455.awsdns-53.org points to: 2600:9000:5305:af00::1 and 205.251.197.175
ns-1828.awsdns-36.co.uk points to: 2600:9000:5307:2400::1 and 205.251.199.36