sgu.ru
Observed 2026-07-17T14:16:02.792900487+00:00 (20h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onIDDQD-AS
Email byGoogle (SPF sender)
Secured byLet's Encrypt
IPv6 · 2 subdomains · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat sgu.ru actually stands on - every host below is a signed observation
sgu.ru
A / AAAA
194.58.31.2492001:b08:e:1::249
IDDQD-ASserves the site
NS
nse.sgu.ruproxy.sgu.runs.sgu.ru
sgu.ruanswers its DNS
MX
info.sgu.ru
Google (SPF sender)receives its email
TLS
sgu.ru
Let's Encryptissued its certificate
DNS Records
A 1
194.58.31.249
AAAA 1
2001:b08:e:1::249
MX 1
10info.sgu.ru
TXT 5
mailru-domain: h1zaVC30qla4DcBFMS=4ABE64591AFDE60416804CDFBCFC81678F25C069v=spf1 include:_spf.google.com include:spf.protection.outlook.com include:_spf.mail.ru mx ip4:194.58.31.0/26 include:_spf.dashasender.ru ~allmailru-domain: IoOmjkCva5E2ueZ3v=DMARC1; p=quarantine; pct=5; rua=mailto:postmaster@sgu.ru
NS 3
nse.sgu.ruproxy.sgu.runs.sgu.ru
SOA 1
ns.sgu.ru root.ns.sgu.ru
SRV 5
xmpp-server1.l.google.com:5269 p20xmpp-server4.l.google.com:5269 p20xmpp-server.l.google.com:5269 p5xmpp-server2.l.google.com:5269 p20xmpp-server3.l.google.com:5269 p20
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
sgu.ru |
C=US, O=Let's Encrypt, CN=YE1 | Thu, 10 Sep 2026 18:51:08 +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 (2)
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
a63f4cdb-29a4-4e34-b08b-74a64f2df188- Output Hash
8624ef602eef70da2c27bbb604525b3b60b753c78388d8fd0c4fb298a07c4804- Signature
ed25519:7a47c24e1f3950e90d641881c57a86d61b062827997f4669bec49f5a77fc868885fa89bb5cacd58385e351fa235d9298e4ee49477bf0938cf8c21b2c6713d10e- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast