rcbc.edu
Observed Aug 16, 2026, 13:47 UTC (13m 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 byGoogle Workspace
Google WorkspaceSecured byLet's Encrypt
Let's EncryptAlso usesCiscoMicrosoft 365Google Search ConsoleFacebook/Meta
Cisco
Microsoft 365
Google Search Console
Facebook/MetaIPv6 · 1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat rcbc.edu actually stands on - every host below is a signed observation
rcbc.edu
A / AAAA
23.185.0.32620:12a:8000::32620:12a:8001::3
2620serves the site
NS
ns14.dnsmadeeasy.comns15.dnsmadeeasy.comrcbcns1.rcbc.eduns10.dnsmadeeasy.com+4 more
dnsmadeeasy.com + rcbc.eduanswers its DNS
MX
alt1.aspmx.l.google.comaspmx3.googlemail.comaspmx.l.google.comalt2.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
rcbc.edu
Let's Encryptissued its certificate
DNS Records
A 1
23.185.0.3
AAAA 2
2620:12a:8000::32620:12a:8001::3
MX 5
5alt1.aspmx.l.google.com10aspmx3.googlemail.com1aspmx.l.google.com5alt2.aspmx.l.google.com10aspmx2.googlemail.com
TXT 9
cisco-ci-domain-verification=1030577ee806b650510ed93fafc342e8227ec9e7ef6cdf2f5bd867be52f45cd6MS=ms15600567google-site-verification=sQFh7atCY8GjFz4V6n6G7Jf7izOKFzfQKp_A8v5mrIggoogle-site-verification=CiuAc8dJ0UeqAD1Yp_j2e5iVw7mkdGMj82qkJqHH-eggoogle-site-verification=aE46DgI6oqj4tszZh_smxXlfNUTQH_rlTWQroQ-GZckMS=033806383D61AA1631F7AA77A6F7EE6D9A65F284cisco-ci-domain-verification=1a3cac6372a8785802821f8eea47e563bb52924d69df55bfe40805e94d7be18fv=spf1 ip4:52.45.50.190 ip4:52.42.20.3 ip4:130.156.141.43 include:_spf.google.com include:_tuf-spf.touchnet.com include:zcsend.net include:spf.happyfox.com ~allfacebook-domain-verification=mutszan1xienl9gpk2jokrcaqtdscl
NS 8
ns14.dnsmadeeasy.comns15.dnsmadeeasy.comrcbcns1.rcbc.eduns10.dnsmadeeasy.comrcbcns2.rcbc.eduns12.dnsmadeeasy.comns13.dnsmadeeasy.comns11.dnsmadeeasy.com
SOA 1
rcbcns1.rcbc.edu hostmaster.rcbc.edu
DMARC_RECORDS 1
v=DMARC1; p=quarantine; rua=mailto:demarc-reporting@rcbc.edu
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
rcbc.edu |
C=US, O=Let's Encrypt, CN=YR1 | Fri, 25 Sep 2026 06:34:16 +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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_71e416aa7403b041- Output Hash
f355a67b55ec14e799b31e9ff50c91f10c05fc808672c65b5375f445bd59c17c- Signature
ed25519:af70bde9432d67c5b01c4c253bf4fe7b464e75f919d3f3a1ca93f9b2da9a5d8a21b43d94d16b6338ed443b021faa70650a398d2c8f658c08094e0440897ac900- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast