`century21wi.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-1044.awsdns-02.org` ⭐
		A	2600:9000:5304:1400::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1044.awsdns-02.org`
		A	205.251.196.20^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1044.awsdns-02.org`
NS	`ns-1927.awsdns-48.co.uk`
		A	2600:9000:5307:8700::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1927.awsdns-48.co.uk`
		A	205.251.199.135^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1927.awsdns-48.co.uk`
NS	`ns-280.awsdns-35.com`
		A	2600:9000:5301:1800::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-280.awsdns-35.com`
		A	205.251.193.24^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-280.awsdns-35.com`
NS	`ns-680.awsdns-21.net`
		A	2600:9000:5302:a800::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-680.awsdns-21.net`
		A	205.251.194.168^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-680.awsdns-21.net`
SOA	`ns-1044.awsdns-02.org`awsdns-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.net`nstld@verisign-grs.com serial=1778338381

Same first word

century21wi.com

DNS History

13 records (6 active, 7 former)

●NSns-1044.awsdns-02.org2019-05-02 → 2026-05-09 · 3 obs

○ 2017-02-09 18:44:22
● 2019-05-02 14:00:44
● 2026-05-09 15:01:44

●NSns-1927.awsdns-48.co.uk2019-05-02 → 2026-05-09 · 3 obs

○ 2017-02-09 18:44:22
● 2019-05-02 14:00:44
● 2026-05-09 15:01:44

●NSns-280.awsdns-35.com2019-05-02 → 2026-05-09 · 3 obs

○ 2017-02-09 18:44:22
● 2019-05-02 14:00:44
● 2026-05-09 15:01:44

●NSns-680.awsdns-21.net2019-05-02 → 2026-05-09 · 3 obs

○ 2017-02-09 18:44:22
● 2019-05-02 14:00:44
● 2026-05-09 15:01:44

○NSns1.savvis.net2015-07-01 → 2017-02-09 · 4 obs

● 2015-07-01 22:42:14
● 2017-02-09 18:44:22
○ 2019-05-02 14:00:44
○ 2026-05-09 15:01:44

○NSns2.savvis.net2015-07-01 → 2017-02-09 · 4 obs

● 2015-07-01 22:42:14
● 2017-02-09 18:44:22
○ 2019-05-02 14:00:44
○ 2026-05-09 15:01:44

○NSns3.savvis.net2015-07-01 → 2017-02-09 · 4 obs

● 2015-07-01 22:42:14
● 2017-02-09 18:44:22
○ 2019-05-02 14:00:44
○ 2026-05-09 15:01:44

○A18.188.66.142019-05-02 → 2019-05-02 · 4 obs

○ 2017-02-09 18:44:22
● 2019-05-02 14:00:44
○ 2026-05-05 12:33:04
○ 2026-05-09 15:01:44

○A18.219.169.932019-05-02 → 2019-05-02 · 4 obs

○ 2017-02-09 18:44:22
● 2019-05-02 14:00:44
○ 2026-05-05 12:33:04
○ 2026-05-09 15:01:44

●A3.138.52.2492026-05-05 → 2026-05-09 · 3 obs

○ 2019-05-02 14:00:44
● 2026-05-05 12:33:04
● 2026-05-09 15:01:44

●A3.21.30.2362026-05-08 → 2026-05-09 · 3 obs

○ 2026-05-05 12:33:04
● 2026-05-08 07:40:08
● 2026-05-09 15:01:44

○A3.23.162.842026-05-05 → 2026-05-05 · 4 obs

○ 2019-05-02 14:00:44
● 2026-05-05 12:33:04
○ 2026-05-08 07:40:08
○ 2026-05-09 15:01:44

○A64.37.197.592015-07-01 → 2017-02-09 · 4 obs

● 2015-07-01 22:42:14
● 2017-02-09 18:44:22
○ 2019-05-02 14:00:44
○ 2026-05-09 15:01:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, f.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net...	-
century21wi.com	ns-680.awsdns-21.net, ns-280.awsdns-35.com, ns-1044.awsdns-02.org, ns-1927.awsdns-48.co.uk	2 records

✅ Authoritative Response

Server:205.251.194.168

NS records: ns-680.awsdns-21.net, ns-280.awsdns-35.com, ns-1044.awsdns-02.org, ns-1927.awsdns-48.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for century21wi.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-1044.awsdns-02.org, ns-1927.awsdns-48.co.uk...`
SOA	1	`ns-1044.awsdns-02.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-280.awsdns-35.com, ns-280.awsdns-35.com)

Analysis

IP Addresses

century21wi.com points to two IP numbers: 3.21.30.236 and 3.138.52.249.

Other host names such as century21homewarranty.com, c21talk.com, century21.biz, century21ms.com and century21rhodeisland.com share IP numbers with century21wi.com.

Name Servers

century21wi.com is delegated to four name servers: ns-280.awsdns-35.com, ns-680.awsdns-21.net, ns-1044.awsdns-02.org and ns-1927.awsdns-48.co.uk.

At least part of the name servers for century21wi.com are shared with other domains, for instance apprisshealth.com, dksh.at, allanhtaylor.com, d3po07p0xv5eig.cloudfront.net and d169971696a801c4.xhst.bbci.co.uk.

Host names with two IP numbers:

ns-280.awsdns-35.com points to: 2600:9000:5301:1800::1 and 205.251.193.24

ns-680.awsdns-21.net points to: 2600:9000:5302:a800::1 and 205.251.194.168

ns-1044.awsdns-02.org points to: 2600:9000:5304:1400::1 and 205.251.196.20

ns-1927.awsdns-48.co.uk points to: 2600:9000:5307:8700::1 and 205.251.199.135

century21wi.com - robtex.com

century21wi.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`century21wi.com`

`com`