spbstu.ru
Observed Jul 22, 2026, 00:50 UTC (20h 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.
Not responding
Runs onYandex.Cloud
Secured byLet's Encrypt
Also usesGoogle Search Console
tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat spbstu.ru actually stands on - every host below is a signed observation
spbstu.ru
A / AAAA
178.154.244.120
Yandex.Cloudserves the site
NS
cnd-b1.spbstu.rub1-dns-spbstu.spbstu.rua1-dns-spbstu.spbstu.rucnd.spbstu.ru+1 more
spbstu.ruanswers its DNS
MX
ksms.spbstu.ru
spbstu.rureceives its email
TLS
spbstu.ru
Let's Encryptissued its certificate
DNS Records
A 1
178.154.244.120
MX 1
10ksms.spbstu.ru
TXT 10
google-site-verification=DspC3PA0O1oh1o6SD_lYCo7fqoLR5TJupHPySuXnEngglobalsign-domain-verification=2vteyh_otHkaLAxW0KmjxORNpD5eyP8KXuyAaoboO1webinar-verification=4320b4eb32a0e50bbf2a87e307ccec99mailru-domain: xCTFGUm7OniNBiuZadobe-idp-site-verification=17a0771d975d451a80222734ee96d96b63bea5f811b6051c928da1d60e4d448bv=spf1 ip4:195.209.233.240 ip4:185.216.204.35 ip4:93.174.133.126 include:_spf.yandex.net include:smtp.send-box.ru include:spf.unisender.com -allgoogle-site-verification=nPE2NySGY51bCMUd8tnYoh0nMA0vFU3mvw9gyb-aAFgJstWmX+YA7x1v+iN5WhAf/1PWJm6TJuAji2gk//1NMVkb8L3z64HXfSa5Pck2wNmQR/I5aOqYhM6H0s0zVUUmg==webinar-verification=46e55357a7900b56bacac8e8affe28d7v=DMARC1; p=reject; sp=reject; aspf=r; adkim=r; rua=mailto:noreply@spbstu.ru
NS 5
cnd-b1.spbstu.rub1-dns-spbstu.spbstu.rua1-dns-spbstu.spbstu.rucnd.spbstu.rucnddc01.spbstu.ru
SOA 1
cnddc01.spbstu.ru admin.spbstu.ru
SRV 3
mail.spbstu.ru:443 p0mail.spbstu.ru:993 p0mail.spbstu.ru:587 p0
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
spbstu.ru |
C=US, O=Let's Encrypt, CN=YR1 | Sun, 04 Oct 2026 05:59:43 +0000 |
YR1 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
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_0f217730ae9a176e- Output Hash
da73fdfe944c1d0303b6d2829034cc547f7649593b2991efbfd3f2a2013b52f9- Signature
ed25519:fc3d4a2fc92ecd3de49291d999c7b06c10e64b3e1b02bf5c2971c72e1aad000bd31eff468d3a8f55dc521d3acad8e30dafe30628d7722c1b562642e569cda901- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast