retc.ac.th

Observed Jul 25, 2026, 17:36 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.

Verify this receipt yourself + Watch this domain

Guarded by a firewall

Runs onCloudflare

Email byGoogle Workspace

Secured byLet's Encrypt

IPv6 · tranco

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat retc.ac.th actually stands on - every host below is a signed observation

retc.ac.th

A / AAAA

172.67.138.115104.21.56.2432606:4700:3032::6815:38f32606:4700:3034::ac43:8a73

Cloudflareserves the site

andronicus.ns.cloudflare.comlia.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

retc.ac.th

Let's Encryptissued its certificate

DNS Records

A 2

172.67.138.115
104.21.56.243

AAAA 2

2606:4700:3032::6815:38f3
2606:4700:3034::ac43:8a73

MX 5

1aspmx.l.google.com
10alt3.aspmx.l.google.com
10alt4.aspmx.l.google.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com

TXT 2

canva-site-verification=FTYW4214yiHkkw95VQhPKw
v=spf1 a include:_spf.google.com ~all

NS 2

andronicus.ns.cloudflare.com
lia.ns.cloudflare.com

SOA 1

andronicus.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (4)

Common Name	Issuer	Expires
`retc.ac.th`	C=US, O=Let's Encrypt, CN=YE1	Sat, 05 Sep 2026 07:05:54 +0000
`YE1`	C=US, O=ISRG, CN=Root YE	Sat, 02 Sep 2028 23:59:59 +0000
`Root YE`	C=US, O=Internet Security Research Group, CN=ISRG Root X2	Thu, 02 Sep 2032 23:59:59 +0000
`ISRG Root X2`	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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for retc.ac.th. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/retc.ac.th">
  <img src="https://domaindrift.io/badge/retc.ac.th.svg"
       width="300" height="64" alt="DomainDrift signed observations for retc.ac.th">
</a>

Ed25519 Receipt

Receipt ID
Output Hash: 657e58cd9794a156028e29f9eec098907e4812b420b68ffd83f98239305209e6
Signature: (receipt not held at this host)
Public Key: connor-fast-v0.13.0
Parent: (genesis)
Plane: fast

Verify this in your browser

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