simonsfoundation.org

Observed Jul 21, 2026, 19:15 UTC (1d 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

Up right now

Runs onCloudflare

Email byProofpoint

Secured byLet's Encrypt

Also usesAtlassianDocuSignGoogle Search ConsoleSlack

non_profit

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

INFRASTRUCTURE MAPwhat simonsfoundation.org actually stands on - every host below is a signed observation

simonsfoundation.org

A / AAAA

52.71.21.243

Cloudflareserves the site

gabe.ns.cloudflare.comkim.ns.cloudflare.com

cloudflare.comanswers its DNS

mxa-00672b01.gslb.pphosted.commxb-00672b01.gslb.pphosted.com

Proofpointreceives its email

TLS

simonsfoundation.org

Let's Encryptissued its certificate

DNS Records

A 1

52.71.21.243

MX 2

10mxa-00672b01.gslb.pphosted.com
10mxb-00672b01.gslb.pphosted.com

TXT 13

MS=ms78245095
adobe-idp-site-verification=2b9c017d82c08ecebbdf9da4fcefc51888136210837e7305f7786230c2b17eb3
apple-domain-verification=vnXk53zBHy5NjsYd
atlassian-domain-verification=JZlHGLd1svD7hYYT93l8KdJ7o2bixNTSG3zsJt+j7gl-TM+dUrb0OJCMCSmn2Fhy
canva-site-verification=nbgNfzcy5vl5D5nWeuutTA
docusign=76a02a30-cfd6-47de-84ad-4d1ff6f17e4f
google-site-verification=Bfs4Lk3MNLR7FpnsgSIOSZN0XwS1BTLNVkayuuA2NAg
google-site-verification=mdqKvZB4DlbxIfZh3EToCqyrKbrAznq4gEN6vbAeeNY
jamf-site-verification=vdKUcUiJKJZL69WRJrl-Mg
slack-domain-verification=hrS6cipVAWE0iK3vBcYQiFNctoY9Hl6Hkl0WppfP

NS 2

gabe.ns.cloudflare.com
kim.ns.cloudflare.com

SOA 1

gabe.ns.cloudflare.com dns.cloudflare.com

CAA 12

iodef "mailto:cloud-admins@simonsfoundation.org"
issue "amazon.com"
issue "comodoca.com"
issue "digicert.com; cansignhttpexchanges=yes"
issue "letsencrypt.org"
issue "pki.goog; cansignhttpexchanges=yes"
issue "ssl.com"
issuewild "comodoca.com"
issuewild "digicert.com; cansignhttpexchanges=yes"
issuewild "letsencrypt.org"

TLS Certificates (3)

Common Name	Issuer	Expires
`simonsfoundation.org`	C=US, O=Let's Encrypt, CN=YR1	Sun, 20 Sep 2026 09:48:36 +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 (0)

None observed.

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 simonsfoundation.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_ea172d3c7e345fb9
Output Hash: 3c9c3301f3103ea8036a5abd8e9d0ec1d4c4280b7adb2bba7c5f43d1320a8569
Signature: ed25519:5f25af9e9a0e855000f14da39f4799f25b2918db9abc54292cc682a7e53269c10064d6351f51a62aa0a8a28e3de5abea137b85496a7a5f23e0446b08d9893a02
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/simonsfoundation.org