DOMAINS CHANGES SERVICES CERTS API

ubuntu.com

Observed 2026-06-15T12:07:22.433051635+00:00 (43m ago). Every field below was attested with an Ed25519 signature at scan time.

Don't trust this page — check the math. Verification runs entirely in your browser. Nothing leaves your machine.

Verify this receipt

Ed25519 Receipt

Receipt ID
36d12114-7751-4cff-8215-4ba7032f5245
Output Hash
ae6607542c8d88fd93df5fdf18fa161262d417443fd2fcbf5174e2014dc5fa69
Signature
ed25519:d3908c38b22b066e7d8e52f6395c7e34eb0e08d174deebb6c4110ae9a2d6f4593640ed83949319918134c96fdce337d7eb791db5cb66e7235014f4c6250ec10f
Public Key
ed25519:d3f6015a95abdad7e8166ad80938a5885500170bb75f8cdb425b8fd2772bec29
Parent
(genesis)
Plane
fast
Verify this in your browser

DNS Records

A 3

  • 185.125.190.20
  • 185.125.190.29
  • 185.125.190.21

AAAA 3

  • 2620:2d:4000:1::28
  • 2620:2d:4000:1::27
  • 2620:2d:4000:1::26

MX 1

  • {"priority":10,"exchange":"mx.ubuntu.com"}

TXT 4

  • forward-email-site-verification=6IsURgl2t7
  • v=spf1 include:_spf.canonical.com include:spf.forwardemail.net ~all
  • google-site-verification=8CcvY6fsgRbiFk2nyEaiA9rE-ykXOcWUPjJKlO6P4vk
  • v=DMARC1; p=none; pct=100; rua=mailto:dmarc-rua+ubuntu@admin.canonical.com

NS 3

  • ns1.canonical.com
  • ns3.canonical.com
  • ns2.canonical.com

SOA 1

  • {"mname":"ns1.canonical.com","rname":"hostmaster.canonical.com","serial":2018062918,"refresh":10800,"retry":3600,"expire":604800,"minimum":3600}

CAA 6

  • {"flag":0,"tag":"issue","value":"\"digicert.com\""}
  • {"flag":0,"tag":"issuewild","value":"\"letsencrypt.org\""}
  • {"flag":0,"tag":"issue","value":"\"letsencrypt.org; accounturi=https://acme-v01.api.letsencrypt.org/acme/reg/32541290\""}
  • {"flag":0,"tag":"issuewild","value":"\"digicert.com\""}
  • {"flag":0,"tag":"iodef","value":"\"mailto:is-admin@canonical.com\""}
  • {"flag":0,"tag":"issue","value":"\"letsencrypt.org\""}

TLS Certificates (2)

Common NameIssuerExpires
ubuntu.com C=US, O=Let's Encrypt, CN=R12 Thu, 16 Jul 2026 04:13:35 +0000
R12 C=US, O=Internet Security Research Group, CN=ISRG Root X1 Fri, 12 Mar 2027 23:59:59 +0000

Subdomains (1)