checkmate.com

Observed 2026-07-12T17:10:41.335Z (20h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMicrosoft 365

Registered withAscio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA

14 subdomains · pharma_biotech

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

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

checkmate.com

A / AAAA

185.230.63.107

Cloudflareserves the site

ns1.bdm.microsoftonline.comns3.bdm.microsoftonline.comns4.bdm.microsoftonline.comns2.bdm.microsoftonline.com

microsoftonline.comanswers its DNS

checkmate-com.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.checkmate.com/

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time410 ms

DNS resolutionNOERROR

Redirect chain

https://www.checkmate.com/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

185.230.63.107

MX 1

0checkmate-com.mail.protection.outlook.com

TXT 2

v=spf1 include:spf.protection.outlook.com -all
mscid=i1b8T+LjSjX6tWyubXOoLff7PwWFNABZxFg8ttY23RCSiyjqtWpOMomLvK2AxQNyjZFyVqtS0Cxc4fJXKX9pzw==

NS 4

ns1.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
ns4.bdm.microsoftonline.com
ns2.bdm.microsoftonline.com

SOA 1

ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com

TLS Certificates (0)

None.

Subdomains (4)

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

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

Ed25519 Receipt

Receipt ID: 25e678a8-e02f-459e-b292-0f4570d8756d
Output Hash: 74320002b4fa05557cf1b7a77db2a6e054660506a0fa3a7215d8ca5d8f910458
Signature: ed25519:32f5b0f5dc7b972c48a7803212bdede82b6f2051350de00ac028e761d55f30368c3462424d9443639fe7628b246ab1e57f7f9981d127a7e6a1c3dcb6fbcd7f09
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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