ysi-ca.org
Observed Jul 27, 2026, 15:16 UTC (6d 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
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesGoogle Search Console
domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ysi-ca.org actually stands on - every host below is a signed observation
ysi-ca.org
A / AAAA
141.193.213.10141.193.213.11
Cloudflareserves the site
NS
ns27.domaincontrol.comns28.domaincontrol.com
domaincontrol.comanswers its DNS
MX
aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
ysi-ca.org
Let's Encryptissued its certificate
DNS Records
A 2
141.193.213.10141.193.213.11
MX 5
50aspmx.l.google.com100alt2.aspmx.l.google.com125aspmx2.googlemail.com75alt1.aspmx.l.google.com150aspmx3.googlemail.com
TXT 4
google-site-verification=-cclboNxoE52dvX9LdKTam1xBY5_94M1zGfC8JQZmXMv=spf1 include:_spf.google.com a:remote.ysi-ca.org ip4:98.248.68.132 ~allbrevo-code:e8654bcac628be1a330d2dca68904dccv=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com
NS 2
ns27.domaincontrol.comns28.domaincontrol.com
SOA 1
ns27.domaincontrol.com dns.jomax.net
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
ysi-ca.org |
C=US, O=Let's Encrypt, CN=YE1 | Sat, 24 Oct 2026 23:02:04 +0000 |
YE1 |
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_13e8b7fbba821230- Output Hash
cbf11ea66565611b00059d7dcb51334e7426df0e1ca9a8f8b6e06c5bbaf22f77- Signature
ed25519:5f8b1023d5c78ff56c89f0f4503b456c1abfe0ce4bced241e9164872cb8044112ab37c40802f5137b06679d180ac32403595a7ae5da591670f2eadcc0071ca01- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast