costar.com

Observed 2026-07-13T00:09:13.078982018+00:00 (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Guarded by a firewall

Email byMicrosoft 365

Secured byDigiCert

Also usesFacebook/MetaFigmaStripeAtlassianGoogle Search ConsoleDockerZoom

40 subdomains · real_estate_expanded

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat costar.com actually stands on - every host below is a signed observation

costar.com

A / AAAA

23.1.47.250

unattributedserves the site

a4-66.akam.neta22-64.akam.neta1-73.akam.neta6-67.akam.net+2 more

akam.netanswers its DNS

costar-com.mail.protection.outlook.com

Microsoft 365receives its email

TLS

gateway.costar.com

DigiCert Incissued its certificate

DNS Records

A 1

23.1.47.250

MX 1

10costar-com.mail.protection.outlook.com

TXT 70

apple-domain-verification=3Hl7EZad01YToBh5
atlassian-sending-domain-verification=09f967f5-912a-44ba-a84c-c386e6b534c0
asv=ae6926660c4e673adcbc5b40d545cae3
facebook-domain-verification=gx1cs3gbyrsju4n0u8rnja67ki8kf9
pardot1030241=deabbab9a4cedfbed5a5763ec087e4e8c8ee7ada173710ce3af9f1798af79de4
logmein-verification-code=e04efccc-e7f2-4ba3-b4ee-0ff3ebcdf694
00D20000000Ma73=1TBQF0000000Hk1
j10etd44vvk2n6fg4s40ql27vc
MS=ms77657212
cursor-domain-verification-r3ehva=B0fi58L0tP3XJsiStQQ1WqF4v

NS 6

a4-66.akam.net
a22-64.akam.net
a1-73.akam.net
a6-67.akam.net
a3-65.akam.net
a9-64.akam.net

SOA 1

ns1.costar.com hostmaster.costar.com

SRV 1

autodiscover.costar.com:443 p0

CAA 4

issue "amazon.com"
issue "godaddy.com"
issue "letsencrypt.org"
issue "digicert.com"

TLS Certificates (2)

Common Name	Issuer	Expires
`gateway.costar.com`	C=US, O=DigiCert Inc, CN=DigiCert EV RSA CA G2	Fri, 06 Nov 2026 23:59:59 +0000
`DigiCert EV RSA CA G2`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2	Tue, 02 Jul 2030 12:42:50 +0000

Subdomains (40)

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for costar.com. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/costar.com">
  <img src="https://domaindrift.io/badge/costar.com.svg"
       width="300" height="64" alt="DomainDrift signed observations for costar.com">
</a>

Ed25519 Receipt

Receipt ID: 3d027e96-2a28-44f2-944a-8be3e39f682e
Output Hash: 768403210189d79cd223641145a0ed4cd0f0f61e86bd954dfa1f11d803c27e51
Signature: ed25519:d2e7a532100d8f29815923f42981f35910cc93ded0ef0574eecf57e0e533c34699bd47c7117564c97135851abf1a028dc9211cfa490aeb10c7dabfb7d3d2b70a
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/costar.com