gritstone.com

Observed Jul 18, 2026, 12:12 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onFastly

Email byMicrosoft 365

Secured byLet's Encrypt

Registered withGoDaddy.com, LLC

Also usesDocuSignGoogle Search Console

1 subdomain · pharma_biotech

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

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

gritstone.com

A / AAAA

151.101.66.159

Fastlyserves the site

ns57.domaincontrol.comns58.domaincontrol.com

domaincontrol.comanswers its DNS

gritstone-com.mail.protection.outlook.com

Microsoft 365receives its email

TLS

gritstone.com

Let's Encryptissued its certificate

DNS Records

A 1

151.101.66.159

MX 1

0gritstone-com.mail.protection.outlook.com

TXT 13

v=spf1 include:us._netblocks.mimecast.com include:mailsenders.netsuite.com include:spf.protection.outlook.com -all
docusign=b4b72d1b-85d2-4b6c-9e6c-8fe6bd46a3bc
adobe-idp-site-verification=c8da71a03243bc0ebcb9af5ff521ba1e16cc69e6ebc47af250ac79f0aa927773
logmein-verification-code=2d5dadcd-3ba9-4e8d-b887-bb91bcf15bb5
apple-domain-verification=5xfBC7MOZXfjTzfY
google-site-verification=KNf6v6DkF7GPYzRf1c4H8PZQGXxvxIKikLTC1sOTj6A
apple-domain-verification=PTHk0StHvKEjZHrK
docusign=9bcf5fe5-40fd-484a-a2bd-c64856aec345
dropbox-domain-verification=1g3mjy1gbbjc
smartsheet-site-validation=FljtFeYrnLSkoBbIPCj9Lrh3lpLHJNc2

NS 2

ns57.domaincontrol.com
ns58.domaincontrol.com

SOA 1

ns57.domaincontrol.com dns.jomax.net

TLS Certificates (3)

Common Name	Issuer	Expires
`gritstone.com`	C=US, O=Let's Encrypt, CN=YR1	Fri, 02 Oct 2026 13:04:49 +0000
`YR1`	C=US, O=ISRG, CN=Root YR	Sat, 02 Sep 2028 23:59:59 +0000
`Root YR`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (1)

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

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

Ed25519 Receipt

Receipt ID: b6504658-1930-4451-9c71-0d61591042ca
Output Hash: 0756a4a8d62aa6c8e90096827f71fda5b03a726f591c3eec4d79c31bb7efc233
Signature: ed25519:3e48aa28ea66a116fd432fe7f613dfdd2a2f3cd40356f11f8f7534990775b48055d5792486390352ef91f5a1f05123a95f0ddc190aa849fa540763c761030401
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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