rubika-edu.com
Observed Jul 26, 2026, 06:30 UTC (5d 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
Secured byLet's Encrypt
Also usesAtlassianGoogle Search Console
majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat rubika-edu.com actually stands on - every host below is a signed observation
rubika-edu.com
A / AAAA
35.71.142.7752.223.52.2
unattributedserves the site
NS
dns2.haisoft.netvm563.haisoft.net
haisoft.netanswers its DNS
MX
ALT2.ASPMX.L.GOOGLE.comALT1.ASPMX.L.GOOGLE.comASPMX.L.GOOGLE.comASPMX3.GOOGLEMAIL.com+1 more
Google Workspacereceives its email
TLS
rubika-edu.com
Let's Encryptissued its certificate
DNS Records
A 2
35.71.142.7752.223.52.2
MX 5
5ALT2.ASPMX.L.GOOGLE.com5ALT1.ASPMX.L.GOOGLE.com0ASPMX.L.GOOGLE.com10ASPMX3.GOOGLEMAIL.com10ASPMX2.GOOGLEMAIL.com
TXT 6
atlassian-domain-verification=Qneagpwv5ibYgVzXWaXRKPAWQhoxJ5EOJUxca+EOOj7ZcMkjoW9KB2jc5qo6JWKFadobe-idp-site-verification=24a132198d9359bb26c499129cf4550cc8da60d60ef7bda55a5e6a3f3c032b6936fedc1796b2ca52aeac3b7d987135fb125b9a2b192abe90d7f4acd5c5d1a964v=spf1 include:spf.mailjet.com +a +mx include:_spf.google.com include:spf.zohomail360.eu ~allgoogle-site-verification=oZvvoHPACdc2XTi8EJ8nF9P0fNERlnydhcdHB356eYkv=DMARC1; p=reject; fo=0; adkim=s; aspf=s;
NS 2
dns2.haisoft.netvm563.haisoft.net
SOA 1
vm563.haisoft.net dsi.rubika-edu.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
rubika-edu.com |
C=US, O=Let's Encrypt, CN=YE2 | Mon, 31 Aug 2026 15:03:28 +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_2f6ca4183436bd0c- Output Hash
efada1e946be1fb9a89724e80b669d3e8e6c406209f0e7de3dd9ccdf787b03e3- Signature
ed25519:0f1fe9005578d8c7229c7c4b0a120677e20a0afcd4149b079b16c52007eb3bbe790379bb5ae7364b67a6aa16334f2f096fe2ac9a93dfa31b80b455f4421c130b- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast