openjsf.org

Observed Jul 18, 2026, 13:52 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onAmazon

Email byAmazon SES

Secured byLet's Encrypt

Registered with1API GmbH

Also usesHubSpot

tranco_40k

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

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

openjsf.org

A / AAAA

76.76.21.21

Amazonserves the site

ns1.dnsimple-edge.comns2.dnsimple-edge.netns3.dnsimple-edge.ions4.dnsimple-edge.org

dnsimple-edge.com + dnsimple-edge.net + moreanswers its DNS

mx1.forwardemail.netmx2.forwardemail.net

Amazon SESreceives its email

TLS

openjsf.org

Let's Encryptissued its certificate

DNS Records

A 1

76.76.21.21

MX 2

10mx1.forwardemail.net
10mx2.forwardemail.net

TXT 3

v=spf1 include:8112310.spf10.hubspotemail.net include:amazonses.com include:spf.forwardemail.net -all
forward-email-site-verification=Lwm1Njs9m6
v=DMARC1; p=none; sp=none; rua=mailto:dmarc@openjsf.org

NS 4

ns1.dnsimple-edge.com
ns2.dnsimple-edge.net
ns3.dnsimple-edge.io
ns4.dnsimple-edge.org

SOA 1

ns1.dnsimple-edge.com admin.dnsimple.com

TLS Certificates (3)

Common Name	Issuer	Expires
`openjsf.org`	C=US, O=Let's Encrypt, CN=YR1	Mon, 21 Sep 2026 01:59:51 +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 openjsf.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: b9b11ba0-1dac-4b0c-b479-75f731054142
Output Hash: a2f2d55929849515bc63e280ceb74851a33781636e24bdabd5828aed67d8ae8f
Signature: ed25519:0fb005166f255f4986e5ede1c0c827390455711a18a6b5f7d6aa97634a79690c37402b8faa86dd855c49c58fda89d6623a4b914f46958f4fa1f801e06823ff0b
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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