duolink.pro
Observed Jul 24, 2026, 04:37 UTC (7d 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
8 subdomains · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat duolink.pro actually stands on - every host below is a signed observation
duolink.pro
A / AAAA
83.150.214.234
unattributedserves the site
NS
d.ns.selectel.rua.ns.selectel.rub.ns.selectel.ruc.ns.selectel.ru
selectel.ruanswers its DNS
MX
SMTP.GOOGLE.COM
Google Workspacereceives its email
TLS
duolink.pro
Let's Encryptissued its certificate
DNS Records
A 1
83.150.214.234
MX 1
1SMTP.GOOGLE.COM
TXT 4
firebase=duolink-fd56fgoogle-site-verification=kiRY5d-aKY0ylfvE_b45IGeUE1YKIWXGPj2qVaD_XrUv=spf1 ip4: 83.150.214.234 include:_spf.google.com include:_spf.firebasemail.com ~allv=DMARC1; p=none; rua=mailto:dmarc@duolink.pro; ruf=mailto:dmarc@duolink.pro
NS 4
d.ns.selectel.rua.ns.selectel.rub.ns.selectel.ruc.ns.selectel.ru
SOA 1
a.ns.selectel.ru support.selectel.ru
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
duolink.pro |
C=US, O=Let's Encrypt, CN=YR2 | Thu, 15 Oct 2026 06:09:24 +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 (8)
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_e7907c61e09bffdc- Output Hash
1cf1bcdcd601d8775022295823561516e61abaabfcdbc1533e5f8c71423e5b48- Signature
ed25519:53b4e613e2883b7a7f90ae3505d7fd8d2434824681c64a6bb69367413f2dcaddf2926a53134fe29821b297680dae2e3b8f8844c5bb089f89d40dcedd2c2c7304- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast