rubicon.com

Observed Jul 18, 2026, 12:24 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Email byMicrosoft 365

Secured byLet's Encrypt

Also usesAtlassianDocuSignFacebook/MetaGoogle Search Console

IPv6 · 1 subdomain · push_legacy

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

INFRASTRUCTURE MAPwhat rubicon.com actually stands on - every host below is a signed observation

rubicon.com

A / AAAA

23.185.0.42620:12a:8000::42620:12a:8001::4

2620serves the site

ns-1259.awsdns-29.orgns-1612.awsdns-09.co.ukns-77.awsdns-09.comns-831.awsdns-39.net

awsdns-29.org + awsdns-09.co.uk + moreanswers its DNS

rubicon-com.mail.protection.outlook.com

Microsoft 365receives its email

TLS

rubicon.com

Let's Encryptissued its certificate

DNS Records

A 1

23.185.0.4

AAAA 2

2620:12a:8000::4
2620:12a:8001::4

MX 1

0rubicon-com.mail.protection.outlook.com

TXT 16

_github-challenge-RubiconX-org=29d7e49bf3
_github-challenge-rubiconglobalip-org=cadb91342e
apple-domain-verification=zbfAZpHNP4jV9Kje
asv=5cb5c49e42cd87b8628863d83d464693
atlassian-domain-verification=1CSWELpKKIg7rywuukWGH2dMgIhIrq9nuYA0W4Nlq/5/WJRiZ8YID96xep9MShqq
docusign=14211bbf-a658-496f-b137-08ef4f436894
docusign=2297293b-bdef-4b3d-b67d-8ed1763c7260
facebook-domain-verification=0dy8a11wbkboxylyrx6rdng9xgh0r8
google-site-verification=M9CM_zaVwiBy8HCeDqICN3bICnS43TUmlQpBa0HAjiw
google-site-verification=zoHz7ngNSOeySY-ym0tuqYugUGGIei2ehehc8t7evDg

NS 4

ns-1259.awsdns-29.org
ns-1612.awsdns-09.co.uk
ns-77.awsdns-09.com
ns-831.awsdns-39.net

SOA 1

ns-1259.awsdns-29.org awsdns-hostmaster.amazon.com

TLS Certificates (3)

Common Name	Issuer	Expires
`rubicon.com`	C=US, O=Let's Encrypt, CN=YR2	Fri, 18 Sep 2026 08:38:08 +0000
`YR2`	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 (1)

www.rubicon.com

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 rubicon.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 62622491-7da3-4bde-a56b-2cf7c18dc800
Output Hash: b6bf68e86dafbe0d7caffa16c5838fc138d0551255bc9f80830ecc620d633afa
Signature: ed25519:40df8b6d71d7338eb45ab27874df6221766eb58aacad9c17b52d52c9e980dc7f10ffb92ceae16ee243357181cab29e1e476bab09288c94555f401731b20f6601
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/rubicon.com