duolunduo.com
Observed Jul 24, 2026, 22:53 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
Runs onCloudflare
Secured byLet's Encrypt
IPv6 · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat duolunduo.com actually stands on - every host below is a signed observation
duolunduo.com
A / AAAA
172.67.130.119104.21.3.752606:4700:3037::ac43:82772606:4700:3031::6815:34b
Cloudflareserves the site
NS
itzel.ns.cloudflare.comtheo.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
mail.duolunduo.com
duolunduo.comreceives its email
TLS
duolunduo.com
Let's Encryptissued its certificate
DNS Records
A 2
172.67.130.119104.21.3.75
AAAA 2
2606:4700:3037::ac43:82772606:4700:3031::6815:34b
MX 1
0mail.duolunduo.com
TXT 1
v=spf1 a mx ip4:104.152.168.208 include:spf.hostwhitelabel.com ~all
NS 2
itzel.ns.cloudflare.comtheo.ns.cloudflare.com
SOA 1
itzel.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
duolunduo.com |
C=US, O=Let's Encrypt, CN=YE2 | Fri, 18 Sep 2026 14:45:56 +0000 |
YE2 |
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 receiptPut the receipt on your own site. A live badge showing what DomainDrift observes and signs for duolunduo.com. It updates itself. It attests a signed observation - not that the site is safe.
<a href="https://domaindrift.io/t/duolunduo.com">
<img src="https://domaindrift.io/badge/duolunduo.com.svg"
width="300" height="64" alt="DomainDrift signed observations for duolunduo.com">
</a>
Ed25519 Receipt
- Receipt ID
rcpt_90d19e78e31f8a32- Output Hash
3d6ee374f5c481064258cbbaaa6a2fb662d49b926a593bf7e399ac5dffbd945e- Signature
ed25519:fa81a9c4aab1fd702e4ff07cedf70985add7cdeb45ee7a51eaadc95a739faa4083bcf380ee95b44c82cd5a341178bcaed69a7157a2bafc1094f43bdf515a4002- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast