apa.edu.vn
Observed Jul 27, 2026, 19:04 UTC (4d 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
majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat apa.edu.vn actually stands on - every host below is a signed observation
apa.edu.vn
A / AAAA
123.30.171.105
unattributedserves the site
NS
ns1.matbao.vnns2.matbao.vn
matbao.vnanswers its DNS
MX
aspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.com
Google Workspacereceives its email
TLS
apa.edu.vn
Let's Encryptissued its certificate
DNS Records
A 1
123.30.171.105
MX 3
0aspmx.l.google.com0aspmx2.googlemail.com0aspmx3.googlemail.com
TXT 2
ALT2.ASPMX.L.GOOGLE.COMgoogle-site-verification=8M8gWVrFxo7KgCD57a0iO9TCT0pG3cHF_ZqTMz3oUqM
NS 2
ns1.matbao.vnns2.matbao.vn
SOA 1
ns1.matbao.com admin.matbao.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
apa.edu.vn |
C=US, O=Let's Encrypt, CN=YR1 | Wed, 14 Oct 2026 16:13:15 +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 (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_a5f2af12f45dd4ad- Output Hash
decb0a3af6ee015d529887b372991e604b016819d8aea18c013b39ae47b82777- Signature
ed25519:bc8e9e3e299ea71b9f09e0f1f81c12dcb433517826dacec60880a05674b377f2e4070ac50194d119ee83b8440e52ab4b4449bfd077ddca034239fa5422ed3c02- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast