costco.com

Observed 2026-07-17T12:16:07.869978408+00:00 (6h ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding

Runs onAkamai Technologies

Email byProofpoint

Secured byDigiCert

Registered withCSC Corporate Domains, Inc.

Also usesGoogle Search ConsoleAtlassianDocuSignFacebook/Meta

1 subdomain · retail

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

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

costco.com

A / AAAA

173.222.169.230

Akamai Technologiesserves the site

a6-64.akam.neta9-66.akam.neta5-64.akam.neta28-66.akam.net+2 more

akam.netanswers its DNS

mx0a-001f9d01.pphosted.commx0b-001f9d01.pphosted.com

Proofpointreceives its email

TLS

costco.com

DigiCert Incissued its certificate

DNS Records

A 1

173.222.169.230

MX 2

10mx0a-001f9d01.pphosted.com
10mx0b-001f9d01.pphosted.com

TXT 31

v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
onetrust-domain-verification=0cc4aa566b3f4d3d9f5f03bc7cfd73c4
google-site-verification=dffTnhrKhs3V5-UUHvEYJg-RNLJjBz27jCBqmF6sX_E
atlassian-domain-verification=mOyfCnOmDOAo2wCWxZ1feSqlR3yeXX6nP2KotAWqkWWtO1NAJydXpiYNCYEhJUn8
docusign=4db9a87a-9dea-417f-bfaa-d45bf7c94291
postman-domain-verification=a5e9b1c7145c22a192ff089eb9c140d4a589b99d7763b87483c24c2deba6d7032578d3a1329849d9e52dd2ae59b3721b451d3fdb461b4514f4e8f5f6b8d696cd
d4c2e4a3297fe25a71d030b67eb83bfc
vmware-cloud-verification-7161df13-1d90-4cbe-a1a9-0f29fc3e9ffc
MS=ms45356090
onx=efbf8ab1-7e83-4416-85a4-711586edb47c

NS 6

a6-64.akam.net
a9-66.akam.net
a5-64.akam.net
a28-66.akam.net
a14-67.akam.net
a1-116.akam.net

SOA 1

a1-116.akam.net hostmaster.akamai.com

SRV 2

vc.costco.com:5060 p0
vc.costco.com:5061 p10

CAA 2

issue "digicert.com"
issue "certainly.com"

TLS Certificates (2)

Common Name	Issuer	Expires
`costco.com`	C=US, O=DigiCert Inc, CN=DigiCert Global G3 TLS ECC SHA384 2020 CA1	Sun, 06 Sep 2026 23:59:59 +0000
`DigiCert Global G3 TLS ECC SHA384 2020 CA1`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G3	Sun, 13 Apr 2031 23:59:59 +0000

Subdomains (1)

www.costco.com

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 costco.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 975d8478-d9ad-4e68-9719-48e99507d0ee
Output Hash: 17d1e6fd9e4105f89d70f42b9733a289c6f888267f2f332e665d4221d65085db
Signature: ed25519:5c43e078794d3e438ebe19b8225451c5c0f1fe41703a56cc09cc14c7cb3ea17c89a40ce807d121e1e839989bbbd9063240b19126b3ad7ec546f6aa2d7bf9c600
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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