21-school.ru

Observed Jul 22, 2026, 00:47 UTC (18h 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.

Verify this receipt yourself + Watch this domain

Up right now

Runs onSERVICEPIPE

Secured byGlobalSign

Also usesGoogle Search Console

3 subdomains · tranco_40k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat 21-school.ru actually stands on - every host below is a signed observation

21-school.ru

A / AAAA

91.221.165.183

SERVICEPIPEserves the site

ns2.21-school.runs1.21-school.runs3.21-school.ru

21-school.ruanswers its DNS

mx.yandex.net

yandex.netreceives its email

TLS

*.21-school.ru

GlobalSign nv-saissued its certificate

DNS Records

A 1

91.221.165.183

MX 1

10mx.yandex.net

TXT 10

v=spf1 ip4:185.179.81.214 ip4:178.170.194.102 ip4:178.170.196.255 include:_spf.yandex.net +a +mx include:_spf.dashasender.ru -all
google-site-verification=TJOfk6Jabb0TAuia_Rxfca2_FdlYs0fKpoMs83VqHCo
google-site-verification=WQnzG6gch71cpe4kETdQeECCnEe6RpoZTdQaXbZS8-k
yandex-verification: 887ee2c63c391368
google-site-verification=TqBACIQwbtLIpKvjE0uyc7nT0sqU15VjUTDR5D2H_60
globalsign-domain-verification=S7gbLgI08Phc3FmjdhoUk19RUNw9rRKaLRvY9v1cpk
mailru-verification: 0e9f96ce19a2fe0e
google-site-verification=JHNnaJa1P6kPQQHhUqwgrDxmnJ4oarN29Ywol_hIfJk
google-site-verification=cVo9jmT56K5it8lvS4ebQnuZc3BTjbfv3abXIiLKRe0
v=DMARC1; p=quarantine; rua=mailto:postmaster@21-school.ru; sp=none; ri=86400

NS 3

ns2.21-school.ru
ns1.21-school.ru
ns3.21-school.ru

SOA 1

ns1.21-school.ru admin.21-school.ru

TLS Certificates (3)

Common Name	Issuer	Expires
`*.21-school.ru`	C=BE, O=GlobalSign nv-sa, CN=GlobalSign RSA OV SSL CA 2018	Sat, 07 Nov 2026 14:31:41 +0000
`GlobalSign RSA OV SSL CA 2018`	2.5.4.11=GlobalSign Root CA - R3, O=GlobalSign, CN=GlobalSign	Tue, 21 Nov 2028 00:00:00 +0000
`GlobalSign`	2.5.4.11=GlobalSign Root CA - R3, O=GlobalSign, CN=GlobalSign	Sun, 18 Mar 2029 10:00:00 +0000

Subdomains (3)

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 21-school.ru. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/21-school.ru">
  <img src="https://domaindrift.io/badge/21-school.ru.svg"
       width="300" height="64" alt="DomainDrift signed observations for 21-school.ru">
</a>

Ed25519 Receipt

Receipt ID: rcpt_a5a33a0ef1030803
Output Hash: f9c37379809bc0ce0a1ad8bf2cd593d8f4c4655a4e18f8379e28cd299d166566
Signature: ed25519:43cf01ae2059816a78513c9c23e5d83e89bdf405c50c5318e99df85b246ee833884ecdba7899ea651cf5e25da150de61ed6977cbb3f075fd7efb6b96bfe83401
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/21-school.ru