rrcc.edu
Observed 2026-07-17T12:32:15.920571025+00:00 (5h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Email byMicrosoft 365
Secured byLet's Encrypt
Also usesAtlassian
IPv6 · 3 subdomains · education_expanded
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat rrcc.edu actually stands on - every host below is a signed observation
rrcc.edu
A / AAAA
23.185.0.42620:12a:8000::42620:12a:8001::4
2620serves the site
NS
kate.ns.cloudflare.comrazvan.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
rrcc-edu.mail.protection.outlook.com
Microsoft 365receives its email
TLS
jobs.rrcc.edu
Let's Encryptissued its certificate
DNS Records
A 1
23.185.0.4
AAAA 2
2620:12a:8000::42620:12a:8001::4
MX 1
10rrcc-edu.mail.protection.outlook.com
TXT 16
MS=6DFC022745FB2A4F3F181B410A9CD581A6B29B36MS=ms34116096OPE0012973_xa3lbo1tlfbzt187703cj72dwzi0jhoadobe-idp-site-verification=aec329f130616a320491a1f9b9caf62d27aaf90da1a12665e37de3fc1129715capple-domain-verification=6ftspZ5VbAyrbpB6apple-domain-verification=84Ryj5EOi7UyvlUzatlassian-domain-verification=AZCCpLA9YE7j5NB7N8RcBdw9w5BYp/QzifdWsIRXVKfW7voNLEa7BN8AOEvvC14tatlassian-sending-domain-verification=7b07b408-02e1-427d-8635-309ae3164ca0ciscocidomainverification=167acf7257e2e186a5a2df6b08d47c20a60be89308f10a0f7f8d62f86eef5286
NS 2
kate.ns.cloudflare.comrazvan.ns.cloudflare.com
SOA 1
kate.ns.cloudflare.com dns.cloudflare.com
SRV 4
video.cccs.edu:5060 p0video.cccs.edu:5061 p0c2s.rrcc.edu.webexconnect.com:5222 p5s2s.rrcc.edu.webexconnect.com:5269 p5
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
jobs.rrcc.edu |
C=US, O=Let's Encrypt, CN=YR2 | Tue, 06 Oct 2026 19:05:24 +0000 |
YR2 |
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 (3)
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
32a3077a-7cb3-4a2c-b3eb-2feec542046e- Output Hash
096bf75cffb2aa1d012488a61dd2c79803b53b5db008bae1f31c8e41453257d3- Signature
ed25519:e2a5c435c4829c87fe95c03d0d5dd34bb57bf7b8257a2fd80d896954d5d19c51948b4f72bbd90c184a168bd403b439ee4d05478e630f38e3878085d9cd539106- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast