appbook.app
Observed Jul 26, 2026, 13:19 UTC (6d 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
Secured byLet's Encrypt
Also usesGoogle Search Console
domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat appbook.app actually stands on - every host below is a signed observation
appbook.app
A / AAAA
103.189.89.215
unattributedserves the site
NS
ns33.domaincontrol.comns34.domaincontrol.com
domaincontrol.comanswers its DNS
MX
smtp.google.com
Google Workspacereceives its email
TLS
appbook.app
Let's Encryptissued its certificate
DNS Records
A 1
103.189.89.215
MX 1
1smtp.google.com
TXT 2
twilio-domain-verification=42f58770f29a33fa60444c71e6d95cf6google-site-verification=nmoTziHDIR35M5MaaTSxuPCEb4hmE-bRdfz5_XY3Gaw
NS 2
ns33.domaincontrol.comns34.domaincontrol.com
SOA 1
ns33.domaincontrol.com dns.jomax.net
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
appbook.app |
C=US, O=Let's Encrypt, CN=YR2 | Wed, 07 Oct 2026 12:36:27 +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 (0)
None observed.
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 receiptEd25519 Receipt
- Receipt ID
rcpt_e7a90b0635f55871- Output Hash
40a5f93bd0f120588a4d00c90fa7811bcfca7944f96db064c11132b311e7e2ce- Signature
ed25519:9a30ce0f254f170872358ffe3913b73852b8b49e8ebe41471175569d0afce8ad6cd354e499134df96089d80a642ea4f5015615fda4b1511898f90a907233cb0d- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast