spbu.ru
Observed 2026-07-17T13:24:57.480909238+00:00 (20h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onSaint Petersburg State University
Secured byLet's Encrypt
Also usesGoogle Search Console
1 subdomain · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat spbu.ru actually stands on - every host below is a signed observation
spbu.ru
A / AAAA
195.70.219.100
Saint Petersburg State Universityserves the site
NS
ns2.pu.runs7.spbu.runs.pu.ru
pu.ru + spbu.ruanswers its DNS
MX
sas.pu.ruksmg.pu.ru
pu.rureceives its email
TLS
spbu.ru
Let's Encryptissued its certificate
DNS Records
A 1
195.70.219.100
MX 2
10sas.pu.ru5ksmg.pu.ru
TXT 10
27.03.2025_globalsign-domain-verification=CxSp3cUN6fdoxS6YhGVs2Jw-bsU2jp4KqM7d_08v9nMS=ms71184566webinar-verification=e21818a3e2ea36e60b04aab6ff1bfd5cgoogle-site-verification=ScvBU4FO-xIszPfBppy5f6xYWB7f1YuKlkhO9lrTbaYK9N-VD4-7SX_globalsign-domain-verification=qsOz2e6YmXnsHnMttLNYhyu2Oh1X3cpbW2E86kW6pSadobe-idp-site-verification=bcdd89855212ae935509858b7d33de2c60a0fe6214eaded78562187f656e7b3cv=spf1 mx a ip4:195.70.197.0/24 ip4:185.44.15.192/27 ip4:185.148.210.134/32 include:mxsspf.sendpulse.com include:_spf.dashasender.ru ~allv=DMARC1;p=quarantine;pct=50;sp=none;rua=mailto:win@spbu.ru
NS 3
ns2.pu.runs7.spbu.runs.pu.ru
SOA 1
ns.pu.ru hostmaster.pu.ru
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
spbu.ru |
C=US, O=Let's Encrypt, CN=YE2 | Wed, 30 Sep 2026 10:38:06 +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 (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; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
76281156-63f7-4b46-b534-0112b280a8ad- Output Hash
2c72b29764feec6d1ef80f299eb7e1403149e920fe886376163c021810074fbd- Signature
ed25519:b51389e1d3165bd87ba6acfcccd86b92f73163e080a8ad20781fc021da5e760a3b7ddfd6a0b6f4efd87e0b5c0a48c7f3b5a8a1050a397e29dc02099678554d09- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast