arpp.org

Observed Jul 24, 2026, 14:33 UTC (1h 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

Email byMicrosoft 365

Secured byLet's Encrypt

Also usesGoogle Search Console

2 subdomains · tranco

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

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

arpp.org

A / AAAA

91.134.59.165

unattributedserves the site

ns-21-c.gandi.netns-102-a.gandi.netns-104-b.gandi.net

gandi.netanswers its DNS

arpp-org.mail.protection.outlook.com

Microsoft 365receives its email

TLS

www.arpp.org

Let's Encryptissued its certificate

DNS Records

A 1

91.134.59.165

MX 1

0arpp-org.mail.protection.outlook.com

TXT 7

google-site-verification=GSzysZM2SmiwPiEVfbwREAhZD-9qjA_jd0EngguLBtk
google-site-verification=0fJ27s0Bpo7HYppCmF9rrmOTTrJDitpnMxswQYr_pnI
MS=ms61762485
google-site-verification=hBurEChSLyfn2jXt7_q97Sgom4gdr019IxOjLJzDjLs
v=spf1 ip4:40.92.0.0/15 ip4:52.100.0.0/14 ip4:104.47.0.0/17 ip4:149.202.187.177 ip4:77.72.91.172 ip4:193.251.94.73 ip4:91.223.240.20/31 ip4:68.232.159.149 ip4:35.207.85.11 ip4:34.155.133.153 ip6:2a01:111:f400::/48 ip6:2603:10a6:100:1d::/63 include:mx.ovh.com include:spf.mailjet.com include:_spf.google.com include:spf.protection.outlook.com ~all
20E5C2AEF40B8D07566DDE37487EE1223B1046B4
v=DMARC1; p=reject; rua=mailto:DMARC_Report@arpp.org,mailto:4b542c01@mxtoolbox.dmarc-report.com; ruf=mailto:DMARC_Report@arpp.org,mailto:4b542c01@forensics.dmarc-report.com; pct=10

NS 3

ns-21-c.gandi.net
ns-102-a.gandi.net
ns-104-b.gandi.net

SOA 1

ns1.gandi.net hostmaster.gandi.net

TLS Certificates (4)

Common Name	Issuer	Expires
`www.arpp.org`	C=US, O=Let's Encrypt, CN=YE2	Sun, 27 Sep 2026 07:40:36 +0000
`YE2`	C=US, O=ISRG, CN=Root YE	Sat, 02 Sep 2028 23:59:59 +0000
`Root YE`	C=US, O=Internet Security Research Group, CN=ISRG Root X2	Thu, 02 Sep 2032 23:59:59 +0000
`ISRG Root X2`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (2)

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

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

Ed25519 Receipt

Receipt ID: rcpt_257227a6fd6e466b
Output Hash: d524873c882362678236609d4be46d1525eaaed9b05127001bc7ee876c5e0438
Signature: ed25519:044fa8e746847ad7203ce5f6badca65f76bccfdabb70d8de635c5e4ddfaeb2b6588ee710ff8dcaaf0aaa0f7eec6dc6860e2d3e869c667e6aeeabf8a151a94702
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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