alumni.net
Observed Jul 22, 2026, 08:10 UTC (3d 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 alumni.net actually stands on - every host below is a signed observation
alumni.net
A / AAAA
104.21.6.186172.67.187.1262606:4700:3036::ac43:bb7e2606:4700:3035::6815:6ba
Cloudflareserves the site
NS
conrad.ns.cloudflare.comnova.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
_dc-mx.7c9600664277.alumni.net
unattributedreceives its email
TLS
alumni.net
Let's Encryptissued its certificate
DNS Records
A 2
104.21.6.186172.67.187.126
AAAA 2
2606:4700:3036::ac43:bb7e2606:4700:3035::6815:6ba
MX 1
10_dc-mx.7c9600664277.alumni.net
TXT 2
v=spf1 ip4:173.255.249.229 ip6:2600:3c01::f03c:94ff:fe86:4b58 ip4:96.126.96.200 ip6:2600:3c01::f03c:95ff:fec5:1dd4 mx ~allv=DMARC1; pct=25; p=quarantine; rua=mailto:support@alumni.net
NS 2
conrad.ns.cloudflare.comnova.ns.cloudflare.com
SOA 1
conrad.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
alumni.net |
C=US, O=Let's Encrypt, CN=YE2 | Mon, 14 Sep 2026 01:06:00 +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 receiptEd25519 Receipt
- Receipt ID
rcpt_8810a834081bfb18- Output Hash
050b95b6a951592b5ef9644ba8fe3b5cdf14ffa0f5dd3612e42d6332f7f98c3c- Signature
ed25519:6608b94f3661d739da7728021115872ffed03cb66dd560574608e06b8a06ee5259d9b9e8cacee20e5f73bcc78a052e3bc4b569b4f5b7c653acdd67ae56a57d00- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast