rcda.org
Observed Aug 16, 2026, 14:07 UTC (5h 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
CloudflareEmail bySendGrid
95 subdomains · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat rcda.org actually stands on - every host below is a signed observation
rcda.org
A / AAAA
192.252.149.11
Cloudflareserves the site
NS
ns17.worldnic.comns18.worldnic.com
worldnic.comanswers its DNS
MX
d330102a.ess.barracudanetworks.comd330102b.ess.barracudanetworks.com
SendGridreceives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.rcda.org/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time341 ms
DNS resolutionNOERROR
Redirect chain
https://www.rcda.org/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
192.252.149.11
MX 2
0d330102a.ess.barracudanetworks.com10d330102b.ess.barracudanetworks.com
TXT 4
RPHL373F6WXU9PP6A5N6M9P8M7AWW42D7W8TOCG20v=spf1 ip4:207.8.96.0/23 ip4:38.95.104.0/23 ip4:38.126.54.0/24 ip4:216.4.238.0/24 ip4:12.174.236.0/24 ip4:12.206.206.0/24 ip4:65.110.54.0/24 ip4:12.110.193.0/25 ip4:38.107.205.0/25 ip4:139.60.0.0/24 ip4:139.60.1.0/24 ip4:139.60.2.0/24 ip4:139.60.3.0/24 ip4:192.252.149.11 ip4:192.252.149.11 exists:%{i}.server297.smtp-spf.sureserver.com ip4:116.251.204.25 ip4:192.252.147.253 ip4:192.252.144.253 ip4:192.252.146.253 ip4:195.42.142.245 ip4:167.89.0.0/17 ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 ip4:159.183.0.0/16 ip4:223.165.113.0/24 ip4:223.165.115.0/24 ip4:223.165.118.0/23 ip4:223.165.120.0/23 ip4:3.222.194.162 ip4:127.0.0.1 ip4:3.13.206.183/32 ip4:216.235.79.150/24 ip4:13.90.170.254/32 ip4:3.216.85.103/32 ip4:3.222.194.162/32 ip4:3.223.172.201/32 ip4:3.132.187.112/32 include:spf.protection.outlook.com include:outboundmail.blackbaud.net include:spf.ess.barracudanetworks.com include:sendgrid.net ~allF1EOvPmf6xIKV7ykp5RYzgJmqR8JycECqmAeqRG3/bLiWK4YY+LBSTjjnqD3vN8ab/4SQb3Rz8xq//57PD4mHA==v=DMARC1; p=quarantine
NS 2
ns17.worldnic.comns18.worldnic.com
SOA 1
NS17.WORLDNIC.COM namehost@WORLDNIC.COM
TLS Certificates (0)
None.
Subdomains (95)
- accounts.rcda.org
- admin.rcda.org
- api.rcda.org
- app.rcda.org
- assets.rcda.org
- auth.rcda.org
- beta.rcda.org
- billing.rcda.org
- blog.rcda.org
- build.rcda.org
- cache.rcda.org
- canary.rcda.org
- cashew.dns.rcda.org
- cashew.rcda.org
- cdn.rcda.org
- checkout.rcda.org
- ci.rcda.org
- connect.rcda.org
- connor.dns.rcda.org
- connor.rcda.org
- console.rcda.org
- dashboard.rcda.org
- db.rcda.org
- demo.rcda.org
- dev.rcda.org
- dns.rcda.org
- docs.rcda.org
- edge.rcda.org
- explorer.dns.rcda.org
- explorer.rcda.org
- faq.rcda.org
- gateway.rcda.org
- git.rcda.org
- gitlab.rcda.org
- grafana.rcda.org
- graphql.rcda.org
- grpc.rcda.org
- health.rcda.org
- help.rcda.org
- id.rcda.org
- images.rcda.org
- imap.rcda.org
- img.rcda.org
- ingest.dns.rcda.org
- jenkins.rcda.org
- kb.rcda.org
- login.rcda.org
- m.rcda.org
- mail.rcda.org
- media.rcda.org
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_13b14f232ac3670c- Output Hash
2d3e213bc11cd86f5bd1e94d1a9c3391ff14456c7941f7c26d7778ed301b5b1c- Signature
ed25519:de10583e749093ae2b1857564e21166d0919f2d2e354195fc838ab98343bc1e45f2873cf243c5d7af30e6a3113b654499bb75f09fe83d5b367e3455628155004- Public Key
ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff- Parent
(genesis)- Plane
- fast