costar.com

Observed Jul 24, 2026, 02:40 UTC (2h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.

Verify this receipt yourself + Watch this domain

Guarded by a firewall

Runs onAkamai Technologies

Email byMicrosoft 365

Secured byDigiCert

Registered withMarkMonitor Inc.

Also usesZoomDockerGoogle Search ConsoleAtlassianFacebook/MetaStripeFigma

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

Akamai Technologiesserves the site

a1-73.akam.neta3-65.akam.neta6-67.akam.neta22-64.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

logmein-verification-code=c500c4a7-6682-4ec6-ab3f-bc3d76171809
v=spf1 ip4:38.109.150.133 ip4:38.64.74.205 ip4:65.200.12.0/24 ip4:204.253.48.0/24 ip4:65.222.180.0/23 ip4:65.210.23.0/24 ip4:50.202.211.161 ip4:160.34.15.18 ip4:160.34.15.19 ip4:64.106.173.20 ip4:64.106.173.15 ip4:64.106.173.19 ip4:64.106.173.18 ip4:156.70.121.222 ip4:156.70.151.69 ip4:198.244.55.16 ip4:64.106.173.0/25 ip4:192.69.130.0/23 include:spf.mandrillapp.com include:amazonses.com include:spf.protection.outlook.com include:helpscoutemail.com include:spf_c.oraclecloud.com -all
ZOOM_verify_rOvGIJUtTvG5kvufbSxFOA
cut8t3r196sjr7fgsk307ra8o8
VjJZWzI5TzrMtQD7aJ650kBVz1H0AEAlko83aqYlMWs=
openai-domain-verification=dv-7hWxp0Ovvq5HToSHGpIreZIu
citrix-verification-code=42c6f62f-b974-4c3a-b70a-6428068290db
hodd31f155oqgiru8gikg8jl11
segment-site-verification=B4D17fO1iOGJwRHpvxgLskQaG5hvSunB
apple-domain-verification=3Hl7EZad01YToBh5

NS 6

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

SOA 1

ns1.costar.com hostmaster.costar.com

SRV 1

autodiscover.costar.com:443 p0

CAA 4

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

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: rcpt_5134b0f52e329988
Output Hash: ffc6d2148ed6e5e04cb5e22f195a044799add5c466a763e965cd90b6bbe768c0
Signature: ed25519:c0b6ed7e6b44d4910317a3ddb9f50f726446c9339184bd02982e60fba51814c7d393d5ba0e2f28d1c47ab65524f6f58dd869a1f09935e52074808c7bcd778305
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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