pen.org

Observed Jul 24, 2026, 02:45 UTC (7h 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

Guarded by a firewall

Runs onCloudflare

Email byGoogle Workspace

Secured byGoogle Trust Services

Also usesGoogle Search Console

IPv6 · non_profit

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

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

pen.org

A / AAAA

172.66.139.165172.66.133.2102606:4700:10::ac42:85d22606:4700:10::ac42:8ba5

Cloudflareserves the site

irma.ns.cloudflare.comlex.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+1 more

Google Workspacereceives its email

TLS

pen.org

Google Trust Servicesissued its certificate

DNS Records

A 2

172.66.139.165
172.66.133.210

AAAA 2

2606:4700:10::ac42:85d2
2606:4700:10::ac42:8ba5

MX 5

10aspmx.l.google.com
20alt1.aspmx.l.google.com
30alt2.aspmx.l.google.com
40aspmx2.googlemail.com
50aspmx3.googlemail.com

TXT 5

google-site-verification=M_FNIE7LQHkHaRncglkIVBnSLqqd2DZCuA4XQo6T8XE
google-site-verification=bJ8YIlbNYVO4VBsZr8rJ5ggKuisC8h3srlO5pbrHc8o
v=spf1 include:_spf.google.com include:mailgun.org include:outboundmail.convio.net include:outboundmail.blackbaud.net include:_spfprod.ngpvan.com ~all
w8h27zm17svy5l9r2fn2z7tjq56ry7vz
v=DMARC1; p=quarantine; rua=mailto:9c8c39319ca8466090abe945e46cff33@dmarc-reports.cloudflare.net

NS 2

irma.ns.cloudflare.com
lex.ns.cloudflare.com

SOA 1

irma.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`pen.org`	C=US, O=Google Trust Services, CN=WE1	Thu, 08 Oct 2026 18:14:06 +0000
`WE1`	C=US, O=Google Trust Services LLC, CN=GTS Root R4	Tue, 20 Feb 2029 14:00:00 +0000
`GTS Root R4`	C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA	Fri, 28 Jan 2028 00:00:42 +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 pen.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_15e6626f316c5e32
Output Hash: 0aba6c9cec91f920b669df8f0fc0a52680c5a6195bffc0fbe35942350a214b1b
Signature: ed25519:2739958fb6e33d13e02b939cf6652c572d1eb38024021871800ec7beff7a432646ad3a43ed18ce0d1a6a59fb06123e18d915e4286046eccdc419d9abea23430a
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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