sandec.ch
Observed Aug 16, 2026, 18:32 UTC (14h 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
Email byMicrosoft 365
Microsoft 365Secured byLet's Encrypt
Let's Encrypt1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT
Steady. No change on record for sandec.ch 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 sandec.ch actually stands on - every host below is a signed observation
sandec.ch
A / AAAA
152.88.10.20
unattributedserves the site
NS
dns3.emp-eaw.chdns4.emp-eaw.ch
emp-eaw.chanswers its DNS
MX
sandec-ch.mail.protection.outlook.com
Microsoft 365receives its email
TLS
sandec.ch
Let's Encryptissued its certificate
DNS Records
A 1
152.88.10.20
MX 1
10sandec-ch.mail.protection.outlook.com
TXT 2
MS=ms20663719v=spf1 include:spf.protection.outlook.com include:_spf01.eawag.ch -all
NS 2
dns3.emp-eaw.chdns4.emp-eaw.ch
SOA 1
dns3.emp-eaw.ch hostmaster.eawag.ch
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
sandec.ch |
C=US, O=Let's Encrypt, CN=YR2 | Fri, 23 Oct 2026 01:59:41 +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)
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_d295b8dcc300ecc6- Output Hash
2a5eb2ecc17107fff09e2f61e0a21907e6e1d67ff2359bf15c64a3a97e271b61- Signature
ed25519:f0727cfe21aa067294788094aa322c140c6a250c134e841f012773e595509249618cf4f4de121ed5d819bef88adc61807da9c1cf7002529016e20d506f185e07- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast