century21.com
Observed Jul 21, 2026, 19:14 UTC (8h ago). Every field below was attested with an Ed25519 signature at scan time.
Guarded by a firewall
Runs onAmazon
Email byMimecast
Secured byAmazon
Registered withCSC Corporate Domains, Inc.
Also usesAtlassianFacebook/MetaGoogle Search Console
real_estate_expanded
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat century21.com actually stands on - every host below is a signed observation
century21.com
A / AAAA
18.190.81.15418.190.202.132
Amazonserves the site
NS
ns-1443.awsdns-52.orgns-1874.awsdns-42.co.ukns-387.awsdns-48.comns-629.awsdns-14.net
awsdns-52.org + awsdns-42.co.uk + moreanswers its DNS
MX
usb-smtp-inbound-1.mimecast.comusb-smtp-inbound-2.mimecast.com
Mimecastreceives its email
TLS
century21.com
Amazonissued its certificate
DNS Records
A 2
18.190.81.15418.190.202.132
MX 2
10usb-smtp-inbound-1.mimecast.com10usb-smtp-inbound-2.mimecast.com
TXT 19
_globalsign-domain-verification=6GywlC8PVV6mLfL6ToMeVqCDeqFk9IDu2uEqmYPqx3atlassian-domain-verification=VU7xgQiZZa3avZ4LTJOsUdMn6RqZi0eGbU3Dk4MSPmi12S6yFEvEh/I8tLFNxlcre80af3bf63eb43f0a51118582eb565fefacebook-domain-verification=p4r7ai7hqlnbzcott0uq5nrayy9yecgoogle-site-verification=eC1QkIUk7oA0XpNCnb-3y0Dpua1xTDg1HtGv5D_wM-wmcfc2lrx5l41lh272qfv6nv8w8h3514rmonday-com-verification=Vzp9M9wkXo140C0DRYV7ojmHp1rlhcE3dD23D45ox_snQAI9/Mf/i7rU4sGIqrWfd9I7TXQgwhQa87qWZI+4pUNTHHJuZ/gX1ZqlWfAYhCnWLGWOOp0Fg1lSVIECsPiUQ==pardot1074273=2b82518acdd71c332feed0ceaeadc1c2be67b4510570237c0f823db87e4d10b2pardot1074273=69a25332aabd2241ffd148220644eb8a26a8c22e84025481d5cf9df3741b5d85
NS 4
ns-1443.awsdns-52.orgns-1874.awsdns-42.co.ukns-387.awsdns-48.comns-629.awsdns-14.net
SOA 1
ns-1443.awsdns-52.org awsdns-hostmaster.amazon.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
century21.com |
C=US, O=Amazon, CN=Amazon RSA 2048 M04 | Wed, 09 Dec 2026 23:59:59 +0000 |
Amazon RSA 2048 M04 |
C=US, O=Amazon, CN=Amazon Root CA 1 | Fri, 23 Aug 2030 22:26:35 +0000 |
Amazon Root CA 1 |
C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2 | Thu, 31 Dec 2037 01:00:00 +0000 |
Subdomains (0)
None observed.
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_91d2a05ae3e96a6d- Output Hash
3806a0f722374a3dc5e507b5e297e45c1f146edee90b4a234cadf2c04b354457- Signature
ed25519:a90aadba794bfd83bfd7d32d9d029d9050608a369e13b98474b54773c5d6f508e0fbbdb05128795e7b95010c096473c50207e0db978c41542524f8625bcc0107- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast