duo-up.com

Observed Jul 25, 2026, 06:44 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

Up right now

Runs onCloudflare

Secured byLet's Encrypt

Also usesGoogle Search Console

IPv6 · tranco

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

INFRASTRUCTURE MAPwhat duo-up.com actually stands on - every host below is a signed observation

duo-up.com

A / AAAA

172.67.137.29104.21.38.1782606:4700:3035::ac43:891d2606:4700:3032::6815:26b2

Cloudflareserves the site

rayne.ns.cloudflare.comvicky.ns.cloudflare.com

cloudflare.comanswers its DNS

TLS

duo-up.com

Let's Encryptissued its certificate

DNS Records

A 2

172.67.137.29
104.21.38.178

AAAA 2

2606:4700:3035::ac43:891d
2606:4700:3032::6815:26b2

TXT 1

google-site-verification=5v9pVzWpuKf4GD-AINbvb5t-IliYFisVSLfPgH3kv10

NS 2

rayne.ns.cloudflare.com
vicky.ns.cloudflare.com

SOA 1

rayne.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (4)

Common Name	Issuer	Expires
`duo-up.com`	C=US, O=Let's Encrypt, CN=YE2	Sat, 26 Sep 2026 08:37:01 +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 receipt

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

<a href="https://domaindrift.io/t/duo-up.com">
  <img src="https://domaindrift.io/badge/duo-up.com.svg"
       width="300" height="64" alt="DomainDrift signed observations for duo-up.com">
</a>

Ed25519 Receipt

Receipt ID: rcpt_8597d1348ee1d994
Output Hash: a409bf1dd72a0f1089394c06c532b41fcd7c2295ec3106c1031903eceaea52b4
Signature: ed25519:69410859c404b0c69cad96ffec1a8a68b9fd47af88bc53807ddb8ad0cf656ad49aba3834514a8d74dc73d397e78e8a83f59b298adf82a05b1858b7f378abe807
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/duo-up.com