dyu.edu
Observed Jul 29, 2026, 04:21 UTC (13h 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 byMicrosoft 365
Secured byLet's Encrypt
Also usesZoomGoogle Search Console
IPv6 · 1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat dyu.edu actually stands on - every host below is a signed observation
dyu.edu
A / AAAA
23.185.0.12620:12a:8001::12620:12a:8000::1
2620serves the site
NS
kianchau.ns.cloudflare.comkimora.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
dyu-edu.mail.protection.outlook.com
Microsoft 365receives its email
TLS
dyc.edu
Let's Encryptissued its certificate
DNS Records
A 1
23.185.0.1
AAAA 2
2620:12a:8001::12620:12a:8000::1
MX 1
0dyu-edu.mail.protection.outlook.com
TXT 5
MS=ms99181311ZOOM_verify_9J910hKG7BdfIVaNb8KynOgoogle-site-verification=DJgp8s_npXE0q6-a2wxonuTcuPRqKIBzaAhspaM6xxQv=spf1 include:spf.protection.outlook.com -allv=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email;
NS 2
kianchau.ns.cloudflare.comkimora.ns.cloudflare.com
SOA 1
kianchau.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
dyc.edu |
C=US, O=Let's Encrypt, CN=YR1 | Sun, 06 Sep 2026 04:13:22 +0000 |
YR1 |
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 (1)
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_5ff406691ef4d48a- Output Hash
d563ae91271c13f49086d83c2494f12a304662515771f836d35435bf5ef2c913- Signature
ed25519:219ae7a718595b8c77f97206c40a8b5b44883e0f3bf289036594d8a61ad7fb7b27a0d32de0b847ce9b09b47aa0a78d97ec497d3281dc28573243be7b92ab3205- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast