jc-pcsheet.com
Observed Aug 16, 2026, 15:47 UTC (20h 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 byGoogle Workspace
Google WorkspaceSecured byLet's Encrypt
Let's Encrypt1 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 jc-pcsheet.com 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 jc-pcsheet.com actually stands on - every host below is a signed observation
jc-pcsheet.com
A / AAAA
139.162.87.244
unattributedserves the site
NS
ns2.cyberdns.twns1.cyberdns.tw
cyberdns.twanswers its DNS
MX
alt1.aspmx.l.google.comalt4.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
jc-pcsheet.com
Let's Encryptissued its certificate
DNS Records
A 1
139.162.87.244
MX 5
5alt1.aspmx.l.google.com10alt4.aspmx.l.google.com5alt2.aspmx.l.google.com10alt3.aspmx.l.google.com1aspmx.l.google.com
NS 2
ns2.cyberdns.twns1.cyberdns.tw
SOA 1
localhost\@ hostmaster.jc-pcsheet.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
jc-pcsheet.com |
C=US, O=Let's Encrypt, CN=YR2 | Tue, 06 Oct 2026 17:34:11 +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_c641d4b3f3f9dcf6- Output Hash
6063ad1577bfb8aa28d4503fa19d55830d7d6fe70f07ee0e2db2eed7a8506cc4- Signature
ed25519:534fdf0125f0f9025f81d4563c2a5706bd4b0962e857726c03ab52e3cd37922a45d94b672d46789fb7b495f7a38b2ae0ae9402cefcdf0f0ddaa78bb58bc10a0f- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast