blue2.co.uk
Observed Aug 16, 2026, 07:45 UTC (18h 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.
Up right now
Runs onCloudflare
CloudflareEmail byGoogle (SPF sender)
Google (SPF sender)Secured byLet's Encrypt
Let's EncryptRegistered withFasthosts Internet Ltd
Also uses1PasswordMicrosoft 365Google Search Console
1Password
Microsoft 365
Google Search Console1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT
Steady. No change on record for blue2.co.uk in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.
INFRASTRUCTURE MAPwhat blue2.co.uk actually stands on - every host below is a signed observation
blue2.co.uk
A / AAAA
217.154.58.138
Cloudflareserves the site
NS
cruz.ns.cloudflare.comluke.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
mx1-eu1.ppe-hosted.commx2-eu1.ppe-hosted.com
Google (SPF sender)receives its email
TLS
altar.agency
Let's Encryptissued its certificate
DNS Records
A 1
217.154.58.138
MX 2
10mx1-eu1.ppe-hosted.com20mx2-eu1.ppe-hosted.com
TXT 9
1password-site-verification=WKEE3BK4BVCI3DCD6M43USFULYA0L4T86944 TTL3600MS=ADD9AB96702F6F03C9E8C5FA77D68CB484CBD986MS=ms27066447google-site-verification=_58BK7mte0WdXpvOk1TIZoGh6r9AaLY07OKJQB5ORqMppe-bef0703bcef8a6d0301d172b197b0c10f6b38630s8dau01pcsk9bg3ork16q6ge81sendinblue-code:524fb6f9e8e7eebbc1e45e4b2a11054ev=spf1 include:_spf.google.com include:spf.messagelabs.com include:spf.sendinblue.com include:sendgrid.net ~all
NS 2
cruz.ns.cloudflare.comluke.ns.cloudflare.com
SOA 1
cruz.ns.cloudflare.com dns.cloudflare.com
DMARC_RECORDS 1
v=DMARC1; p=reject; rua=mailto:dmarc-reports@blue2.co.uk
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
altar.agency |
C=US, O=Let's Encrypt, CN=YR1 | Mon, 19 Oct 2026 12:33:49 +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 (1)
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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_8793ae771a21c11e- Output Hash
fd1094a72ed37f3725efe0ee907a52693f1d6414f522dfc8dd7b6367925deabf- Signature
ed25519:298d0198f88040abc575c250318de13ebea864791070de7ec31fcebda807e93b60a9eb360892b4151c648fc8d10d9b13f8aab20a33608626c476dcbdde2cb509- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast