`my.century21.com`

CNAME	`rfg-ext-elb-prd-myc21com-1778737193.us-east-2.elb.amazonaws.com`
DNSSEC	⚠️ Not signed
A	3.12.173.97^{🇺🇸 Amazon3.12.0.0/16 EC2 CMH prefix}
		PTR	`ec2-3-12-173-97.us-east-2.compute.amazonaws.com`
A	18.221.241.37^{🇺🇸 Amazon18.220.0.0/14 EC2 CMH prefix}

`century21.com`

	DNSSEC	⚠️ Not signed
	A	13.59.173.169^{🇺🇸 Amazon13.58.0.0/15 EC2 CMH prefix}
	A	16.58.93.61^{🇺🇸 Amazon16.58.0.0/17 EC2 Prefix}
	NS	`ns-1443.awsdns-52.org` ⭐
	NS	`ns-1874.awsdns-42.co.uk`
	NS	`ns-387.awsdns-48.com`
	NS	`ns-629.awsdns-14.net`
	MX	`usb-smtp-inbound-1.mimecast.com` ⭐
	MX	`usb-smtp-inbound-2.mimecast.com` ⭐
	TXT	`_globalsign-domain-verification=6GywlC8PVV6mLfL6ToMeVqCDeqFk9IDu2uEqmYPqx3`
	TXT	`atlassian-domain-verification=VU7xgQiZZa3avZ4LTJOsUdMn6RqZi0eGbU3Dk4MSPmi12S6...`
	TXT	`e80af3bf63eb43f0a51118582eb565fe`
	TXT	`facebook-domain-verification=p4r7ai7hqlnbzcott0uq5nrayy9yec`
	TXT	`google-site-verification=eC1QkIUk7oA0XpNCnb-3y0Dpua1xTDg1HtGv5D_wM-w`
	TXT	`mcfc2lrx5l41lh272qfv6nv8w8h3514r`
	TXT	`monday-com-verification=Vzp9M9wkXo140C0DRYV7ojmHp1rlhcE3dD23D45ox_s`
	TXT	`nQAI9/Mf/i7rU4sGIqrWfd9I7TXQgwhQa87qWZI+4pUNTHHJuZ/gX1ZqlWfAYhCnWLGWOOp0Fg1lS...`
	TXT	`pardot1074273=2b82518acdd71c332feed0ceaeadc1c2be67b4510570237c0f823db87e4d10b2`
	TXT	`pardot1074273=69a25332aabd2241ffd148220644eb8a26a8c22e84025481d5cf9df3741b5d85`
	TXT	`pardot1074273=d10fe431a3ffae55d8cad8645a55abfda9ce49ce739f57d7e5548e6b15efcd79`
	TXT	`pardot1074273=e8573c2e3702fa43c3ffc84b6a2c8c4fa5589037fd9cddd21ea8f7a618829080`
	TXT	`tjng5q051jrp6tkbptv7m6qvyl9rtntw`
	TXT	`v=spf1 include:spf.anywhere.re ~all`
	TXT	`xtfzlzs4srq28jg4gk4km1j648xjxnvt`
	SOA	`ns-1443.awsdns-52.org`awsdns-hostmaster@amazon.com serial=1

WOT: UNKNOWN (85/100)
rank #14589 globally
rank #7197 in the tld
WOT: SAFE (87/100)
📈 Tranco rank: #30,935

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DNS History

7 records (1 active, 6 former)

○NSns1.savvis.net2016-12-28 → 2016-12-28 · 3 obs

● 2016-12-28 20:10:38
○ 2026-02-17 23:06:30
○ 2026-05-10 01:03:42

○NSns2.savvis.net2016-12-28 → 2016-12-28 · 3 obs

● 2016-12-28 20:10:38
○ 2026-02-17 23:06:30
○ 2026-05-10 01:03:42

○NSns3.savvis.net2016-12-28 → 2016-12-28 · 3 obs

● 2016-12-28 20:10:38
○ 2026-02-17 23:06:30
○ 2026-05-10 01:03:42

○MXmx.usa.net2016-12-28 → 2016-12-28 · 3 obs

● 2016-12-28 20:10:38
○ 2026-02-17 23:06:30
○ 2026-05-10 01:03:42

○A64.37.197.592016-12-28 → 2016-12-28 · 3 obs

● 2016-12-28 20:10:38
○ 2026-02-17 23:06:30
○ 2026-05-10 01:03:42

○CNAMEcentury21.com2016-12-28 → 2016-12-28 · 3 obs

● 2016-12-28 20:10:38
○ 2026-02-17 23:06:30
○ 2026-05-10 01:03:42

●CNAMErfg-ext-elb-prd-myc21com-1778737193.us-east-2.elb.amazonaws.com2026-02-17 → 2026-05-10 · 3 obs

○ 2016-12-28 20:10:38
● 2026-02-17 23:06:30
● 2026-05-10 01:03:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
century21.com	ns-629.awsdns-14.net, ns-387.awsdns-48.com, ns-1874.awsdns-42.co.uk, ns-1443.awsdns-52.org	2 records
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-
century21.com	ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net	-

✅ Authoritative Response

Server:205.251.197.163

NS records: ns-1443.awsdns-52.org, ns-1874.awsdns-42.co.uk, ns-387.awsdns-48.com, ns-629.awsdns-14.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for century21.com (unsigned zone)

⏱️ Timing

Total: 1251ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`rfg-ext-elb-prd-myc21com-1778737193.us-e`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-387.awsdns-48.com, ns-387.awsdns-48.com)

Analysis

IP Addresses

The entity my.century21.com points to two IP numbers: 3.12.173.97 and 18.221.241.37.

my.century21.com - robtex.com

my.century21.com

century21.com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

`my.century21.com`

`century21.com`