century24.com - robtex.com
century24.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-546.awsdns-04.net ⭐ | ||||||
| A | 2600:9000:5302:2200::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-546.awsdns-04.net | ||||||
| A | 205.251.194.34🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-546.awsdns-04.net | ||||||
| NS | ns-1133.awsdns-13.org | ||||||
| A | 2600:9000:5304:6d00::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1133.awsdns-13.org | ||||||
| A | 205.251.196.109🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1133.awsdns-13.org | ||||||
| NS | ns-1884.awsdns-43.co.uk | ||||||
| A | 2600:9000:5307:5c00::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-1884.awsdns-43.co.uk | ||||||
| A | 205.251.199.92🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1884.awsdns-43.co.uk | ||||||
| NS | ns-282.awsdns-35.com | ||||||
| A | 2600:9000:5301:1a00::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-282.awsdns-35.com | ||||||
| A | 205.251.193.26🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-282.awsdns-35.com | ||||||
| SOA | ns-546.awsdns-04.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=1778307056 | ||||||
Same first word
century24.com |
DNS History
12 records (6 active, 6 former)
●NSns-1133.awsdns-13.org2026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:25:18
● 2026-05-09 06:12:20
●NSns-1884.awsdns-43.co.uk2026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:25:18
● 2026-05-09 06:12:20
●NSns-282.awsdns-35.com2026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:25:18
● 2026-05-09 06:12:20
●NSns-546.awsdns-04.net2026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:25:18
● 2026-05-09 06:12:20
○NSns1.savvis.net2015-06-20 → 2016-11-27 · 5 obs
● 2015-06-20 23:32:16
● 2016-11-27 09:18:48
○ 2026-05-05 12:25:18
○ 2026-05-09 06:12:20
○NSns2.savvis.net2015-06-20 → 2016-11-27 · 5 obs
● 2015-06-20 23:32:16
● 2016-11-27 09:18:48
○ 2026-05-05 12:25:18
○ 2026-05-09 06:12:20
○NSns3.savvis.net2015-06-20 → 2016-11-27 · 5 obs
● 2015-06-20 23:32:16
● 2016-11-27 09:18:48
○ 2026-05-05 12:25:18
○ 2026-05-09 06:12:20
○NSns4.savvis.net2015-06-20 → 2016-11-27 · 5 obs
● 2015-06-20 23:32:16
● 2016-11-27 09:18:48
○ 2026-05-05 12:25:18
○ 2026-05-09 06:12:20
○NSns5.savvis.net2015-06-20 → 2016-11-27 · 5 obs
● 2015-06-20 23:32:16
● 2016-11-27 09:18:48
○ 2026-05-05 12:25:18
○ 2026-05-09 06:12:20
●A3.138.52.2492026-05-05 → 2026-05-09 · 2 obs
● 2026-05-09 06:12:20
●A3.21.30.2362026-05-08 → 2026-05-09 · 3 obs
● 2026-05-08 06:47:54
● 2026-05-09 06:12:20
○A3.23.162.842026-05-05 → 2026-05-05 · 3 obs
○ 2026-05-08 06:47:54
○ 2026-05-09 06:12:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net... | - |
| century24.com | ns-546.awsdns-04.net, ns-282.awsdns-35.com, ns-1133.awsdns-13.org, ns-1884.awsdns-43.co.uk | 2 records |
✅ Authoritative Response
Server:205.251.199.92
NS records: ns-546.awsdns-04.net, ns-282.awsdns-35.com, ns-1133.awsdns-13.org, ns-1884.awsdns-43.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for century24.com (unsigned zone)
⏱️ Timing
Total: 1666ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 3.138.52.249, 3.21.30.236 |
| NS | 4 | ns-1133.awsdns-13.org, ns-1884.awsdns-43.co.uk... |
| SOA | 1 | ns-546.awsdns-04.net awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-282.awsdns-35.com, ns-282.awsdns-35.com)
Analysis
IP Addresses
century24.com points to two IP numbers: 3.21.30.236 and 3.138.52.249.
Other host names, for instance century21europe.com, century21tylertexas.com, century21espanol.com, century21kentucky.com and c21newsletter.com share IP numbers with century24.com.
Name Servers
century24.com is delegated to four name servers: ns-282.awsdns-35.com, ns-546.awsdns-04.net, ns-1133.awsdns-13.org and ns-1884.awsdns-43.co.uk.
century24.com at least partially shares name servers with other domains, for instance arfuwalce.cc, smartmenu.it, poolexpert.ca, kimura-yamatsuri.com and benesse-gtec.jp.
Host names with two IP numbers:
ns-282.awsdns-35.com points to: 2600:9000:5301:1a00::1 and 205.251.193.26.
ns-546.awsdns-04.net points to: 2600:9000:5302:2200::1 and 205.251.194.34.
ns-1133.awsdns-13.org points to: 2600:9000:5304:6d00::1 and 205.251.196.109.
ns-1884.awsdns-43.co.uk points to: 2600:9000:5307:5c00::1 and 205.251.199.92.