CONTINUOUS INTERNET TELEMETRY24H DRIFTat least 14,789 material changesacross 13,620+ domains · 24h to ~18h ago · a floor, 6h of 24 walkedNOW564 curated domains not reachablelast probe, steadySITE ERRORS34,606 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 155,920 sites429 rate-limit / 403 bot-block, a posture signal

psu.ru

Observed Jul 27, 2026, 21:58 UTC (4d 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
Signed observation on record.
Also usesGoogle Search Console
tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat psu.ru actually stands on - every host below is a signed observation
psu.ru
A / AAAA
212.192.64.44
unattributedserves the site
NS
ns.psu.runs8-cloud.nic.runs8-l2.nic.runs4-l2.nic.ru+1 more
psu.ru + nic.ruanswers its DNS
MX
postoffice.psu.ru
psu.rureceives its email

DNS Records

A 1

  • 212.192.64.44

MX 1

  • 20postoffice.psu.ru

TXT 6

  • v=spf1 +mx +a:postoffice.psu.ru ip4:212.192.70.134 ~all
  • MS=195E920459A9A78123B39C835CC5E3B1E958F95F
  • mailru-verification: 00298e0ca3ca8a26
  • google-site-verification=S62Fl_15Y7K07iwi5TiZ7vPg5uJruN_ME-hNFl-wDBc
  • _globalsign-domain-verification=B4-6L0QjG-WmlFcMjl6qhuDa77xz088omI91fwjibv
  • v=DMARC1;p=quarantine;aspf=s;pct=20;rua=mailto:postmaster@psu.ru;fo=0;

NS 5

  • ns.psu.ru
  • ns8-cloud.nic.ru
  • ns8-l2.nic.ru
  • ns4-l2.nic.ru
  • ns4-cloud.nic.ru

SOA 1

  • ns.psu.ru hostmaster.psu.ru

TLS Certificates (0)

None.

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for psu.ru. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for psu.ru <a href="https://domaindrift.io/t/psu.ru"> <img src="https://domaindrift.io/badge/psu.ru.svg" width="300" height="64" alt="DomainDrift signed observations for psu.ru"> </a>

Ed25519 Receipt

Receipt ID
rcpt_c92d74deab4c3a64
Output Hash
bca42cb2d158c24d8f70a63c294c73777f865ddfc86d1fb582904eab51bd349f
Signature
ed25519:42e1f0330da42845afdf01bfb8668534c9543070faed132e8c22b59354524deb42af379a3cc16157a4624916d01005f552e1522f6b68a32c2e5f0857cd98c60c
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser