cduniverse.com
Observed Jul 21, 2026, 16:51 UTC (2d 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.
Guarded by a firewall
Runs onCloudflare
Email byGoogle Workspace
Secured byLet's Encrypt
Registered withGoDaddy.com, LLC
Also usesGoogle Search Console
IPv6 · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat cduniverse.com actually stands on - every host below is a signed observation
cduniverse.com
A / AAAA
104.21.53.147172.67.213.1402606:4700:3033::ac43:d58c2606:4700:3035::6815:3593
Cloudflareserves the site
NS
brett.ns.cloudflare.comkate.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
cduniverse.com
Let's Encryptissued its certificate
DNS Records
A 2
104.21.53.147172.67.213.140
AAAA 2
2606:4700:3033::ac43:d58c2606:4700:3035::6815:3593
MX 5
1aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com
TXT 4
google-site-verification=3bVV5KaG-zjDOUUaVlWAwSGEIG-73rQstAIqoQpizjsgoogle-site-verification=ieHXJMYgxULkzgLcOfcqb__7MtthyQ5cy5L87W1cbUkv=spf1 include:zohomail.com include:_spf.google.com ~allv=DMARC1; p=none;
NS 2
brett.ns.cloudflare.comkate.ns.cloudflare.com
SOA 1
brett.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
cduniverse.com |
C=US, O=Let's Encrypt, CN=YE1 | Wed, 09 Sep 2026 14:03:03 +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 receiptEd25519 Receipt
- Receipt ID
rcpt_a33b8b445af4e589- Output Hash
33cd9e2fce3499a227dbce33dbb9225e80fbcf7c18acf38d31d866e4379f4ca9- Signature
ed25519:65dc0d2875d1a739abbc60346ad9dacb364eb36378ff3b7b337034c5e66fc5e89663d7d99eb6e0b48811a597a88eda10b5448feaa2293145114f1fbbcbdfb007- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast