century21mn.com - robtex.com
century21mn.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-159.awsdns-19.com ⭐ | ||||||
| A | 2600:9000:5300:9f00::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-159.awsdns-19.com | ||||||
| A | 205.251.192.159🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-159.awsdns-19.com | ||||||
| NS | ns-1480.awsdns-57.org | ||||||
| A | 2600:9000:5305:c800::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront | ||||||
| PTR | ns-1480.awsdns-57.org | ||||||
| A | 205.251.197.200🇺🇸 Amazon205.251.197.0/24 prefix | ||||||
| PTR | ns-1480.awsdns-57.org | ||||||
| NS | ns-2019.awsdns-60.co.uk | ||||||
| A | 2600:9000:5307:e300::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-2019.awsdns-60.co.uk | ||||||
| A | 205.251.199.227🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-2019.awsdns-60.co.uk | ||||||
| NS | ns-965.awsdns-56.net | ||||||
| A | 2600:9000:5303:c500::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront | ||||||
| PTR | ns-965.awsdns-56.net | ||||||
| A | 205.251.195.197🇺🇸 Amazon205.251.195.0/24 prefix | ||||||
| PTR | ns-965.awsdns-56.net | ||||||
| SOA | ns-159.awsdns-19.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=1778332861 | ||||||
Same first word
century21mn.com |
DNS History
12 records (6 active, 6 former)
●NSns-1480.awsdns-57.org2026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:22:28
● 2026-05-09 13:37:00
●NSns-159.awsdns-19.com2026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:22:28
● 2026-05-09 13:37:00
●NSns-2019.awsdns-60.co.uk2026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:22:28
● 2026-05-09 13:37:00
●NSns-965.awsdns-56.net2026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:22:28
● 2026-05-09 13:37:00
○NSns1.savvis.net2008-03-20 → 2017-04-03 · 4 obs
● 2017-04-03 13:56:46
○ 2026-05-05 12:22:28
○ 2026-05-09 13:37:00
○NSns2.savvis.net2008-03-20 → 2017-04-03 · 4 obs
● 2017-04-03 13:56:46
○ 2026-05-05 12:22:28
○ 2026-05-09 13:37:00
○NSns3.savvis.net2008-03-20 → 2017-04-03 · 4 obs
● 2017-04-03 13:56:46
○ 2026-05-05 12:22:28
○ 2026-05-09 13:37:00
○NSns6.savvis.net2008-03-20 → 2008-03-20 · 3 obs
○ 2015-05-31 09:53:24
○ 2026-05-09 13:37:00
●A3.138.52.2492026-05-05 → 2026-05-09 · 3 obs
● 2026-05-05 12:22:28
● 2026-05-09 13:37:00
●A3.21.30.2362026-05-08 → 2026-05-09 · 3 obs
● 2026-05-08 06:47:54
● 2026-05-09 13:37:00
○A3.23.162.842026-05-05 → 2026-05-05 · 4 obs
● 2026-05-05 12:22:28
○ 2026-05-08 06:47:54
○ 2026-05-09 13:37:00
○A64.37.197.592015-05-31 → 2017-04-03 · 5 obs
● 2015-05-31 09:53:24
● 2017-04-03 13:56:46
○ 2026-05-05 12:22:28
○ 2026-05-09 13:37:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, h.gtld-servers.net, k.gtld-servers.net, f.gtld-servers.net... | - |
| century21mn.com | ns-159.awsdns-19.com, ns-965.awsdns-56.net, ns-2019.awsdns-60.co.uk, ns-1480.awsdns-57.org | 2 records |
✅ Authoritative Response
Server:205.251.195.197
NS records: ns-159.awsdns-19.com, ns-965.awsdns-56.net, ns-2019.awsdns-60.co.uk, ns-1480.awsdns-57.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for century21mn.com (unsigned zone)
⏱️ Timing
Total: 382ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 3.21.30.236, 3.138.52.249 |
| NS | 4 | ns-1480.awsdns-57.org, ns-159.awsdns-19.com... |
| SOA | 1 | ns-159.awsdns-19.com awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-159.awsdns-19.com, ns-159.awsdns-19.com)
Analysis
IP Addresses
century21mn.com points to two IP numbers: 3.21.30.236 and 3.138.52.249.
Other host names, for instance century21smorgages.com, century21ak.com, century21land.com, century21ri.com and century21smorgage.com share IP numbers with century21mn.com.
Name Servers
century21mn.com is delegated to four name servers: ns-159.awsdns-19.com, ns-965.awsdns-56.net, ns-1480.awsdns-57.org and ns-2019.awsdns-60.co.uk.
century21mn.com at least partially shares its name servers with other domains, for instance 67.10.3.in-addr.arpa, 4cmkg09.com, freerice.com, 166.9.3.in-addr.arpa and lvg.cl.
these name servers are commonly used together with ns1-24-eu-west-2.ec2-rdns.amazonaws.com, ns2-24-eu-west-2.ec2-rdns.amazonaws.com, ns3-24-eu-west-2.ec2-rdns.amazonaws.com and ns4-24-eu-west-2.ec2-rdns.amazonaws.com.
Host names with two IPs: ns-159.awsdns-19.com points to 2600:9000:5300:9f00::1 and 205.251.192.159; ns-965.awsdns-56.net points to 2600:9000:5303:c500::1 and 205.251.195.197; ns-1480.awsdns-57.org points to 2600:9000:5305:c800::1 and 205.251.197.200; ns-2019.awsdns-60.co.uk points to 2600:9000:5307:e300::1 and 205.251.199.227.