yfedu.org
Observed Aug 2, 2026, 18:42 UTC (4h 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 byGoogle Trust Services
IPv6 · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat yfedu.org actually stands on - every host below is a signed observation
yfedu.org
A / AAAA
104.21.53.116172.67.212.1592606:4700:3037::6815:35742606:4700:3033::ac43:d49f
Cloudflareserves the site
NS
elinore.ns.cloudflare.comterin.ns.cloudflare.com
cloudflare.comanswers its DNS
TLS
yfedu.org
Google Trust Servicesissued its certificate
DNS Records
A 2
104.21.53.116172.67.212.159
AAAA 2
2606:4700:3037::6815:35742606:4700:3033::ac43:d49f
NS 2
elinore.ns.cloudflare.comterin.ns.cloudflare.com
SOA 1
elinore.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
yfedu.org |
C=US, O=Google Trust Services, CN=WE1 | Sat, 26 Sep 2026 15:09:07 +0000 |
WE1 |
C=US, O=Google Trust Services LLC, CN=GTS Root R4 | Tue, 20 Feb 2029 14:00:00 +0000 |
GTS Root R4 |
C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA | Fri, 28 Jan 2028 00:00:42 +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_13d5f8fa775b8e66- Output Hash
8f1ad3586e2ffbab578814686c23df51d8993eba8f5673f28b6071a263bc9234- Signature
ed25519:f1befe397215cf4b9dff41d9779ea5feb823becf034e851ceb07f6562ed558106e6431b89df2f5996977289a7b82edfa1b6a61de7e8fb12e18d94f0695043401- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast