simonsfoundation.org
Observed 2026-07-13T17:33:10.165Z (15h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byProofpoint
Also usesDocuSignAtlassianGoogle Search ConsoleSlack
7 subdomains · 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
NS
kim.ns.cloudflare.comgabe.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
mxa-00672b01.gslb.pphosted.commxb-00672b01.gslb.pphosted.com
Proofpointreceives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.simonsfoundation.org/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time246 ms
DNS resolutionNOERROR
Redirect chain
https://www.simonsfoundation.org/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
52.71.21.243
MX 2
10mxa-00672b01.gslb.pphosted.com10mxb-00672b01.gslb.pphosted.com
TXT 14
docusign=76a02a30-cfd6-47de-84ad-4d1ff6f17e4fv=spf1 include:_u.simonsfoundation.org._spf.smart.ondmarc.com include:mailgun.org ~allapple-domain-verification=vnXk53zBHy5NjsYdMS=ms78245095adobe-idp-site-verification=2b9c017d82c08ecebbdf9da4fcefc51888136210837e7305f7786230c2b17eb3atlassian-domain-verification=JZlHGLd1svD7hYYT93l8KdJ7o2bixNTSG3zsJt+j7gl-TM+dUrb0OJCMCSmn2Fhycanva-site-verification=nbgNfzcy5vl5D5nWeuutTAgoogle-site-verification=mdqKvZB4DlbxIfZh3EToCqyrKbrAznq4gEN6vbAeeNYslack-domain-verification=hrS6cipVAWE0iK3vBcYQiFNctoY9Hl6Hkl0WppfPzapier-domain-verification-challenge=0b11e5f3-7059-4cf3-8875-7246100b6043
NS 2
kim.ns.cloudflare.comgabe.ns.cloudflare.com
SOA 1
gabe.ns.cloudflare.com dns.cloudflare.com
CAA 12
iodef mailto:cloud-admins@simonsfoundation.orgissue comodoca.comissue ssl.comissuewild pki.goog; cansignhttpexchanges=yesissue amazon.comissue letsencrypt.orgissuewild ssl.comissuewild comodoca.comissue digicert.com; cansignhttpexchanges=yesissuewild digicert.com; cansignhttpexchanges=yes
TLS Certificates (0)
None.
Subdomains (7)
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 receiptEd25519 Receipt
- Receipt ID
832d0da0-e1ca-4c1b-973e-8b153be23162- Output Hash
4508ecf440a24c18bc90cb7d6de532b1e2cba52caff06f81061f55d82fdca961- Signature
ed25519:3472cc0307fead130ba1f87581225af4e1139c84d62b994f25c46b7f05c9fa5b41b0d9cea3943df8ce3ce0ee3ac2253deb20d3db32de472e8b88b62f78900404- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast