mc21.ru
Observed Aug 2, 2026, 22:04 UTC (12d ago). Every field below was attested with an Ed25519 signature at scan time.
mc21.ru is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting mc21.ru under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.
Watch mc21.ru Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Let's Encrypt
Microsoft 365DNS Records
A 1
178.248.237.157
MX 1
10mx.mc21.ru
TXT 3
MS=A3468B6D347824696F790401775E1B3927EAB54Fv=spf1 ip4:109.167.251.5 ip4:109.167.251.7 ip4:109.167.251.50 include:spf.unisender.com -allspf2.0/mfrom,pra ip4:109.167.251.5 ip4:109.167.251.7 ip4:109.167.251.50 include:senderid.unisender.com -all
NS 2
ns1.reg.runs2.reg.ru
SOA 1
ns1.reg.ru hostmaster.ns1.reg.ru
DMARC_RECORDS 1
v=DMARC1; p=none; rua=mailto:08bf10248799c98d067074d753d6abce@mc21.ru; ruf=mailto:08bf10248799c98d067074d753d6abce@mc21.ru; fo=1
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
mc21.ru |
C=US, O=Let's Encrypt, CN=YE1 | Tue, 20 Oct 2026 21:19:10 +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)
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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_fa61c97e3a2e17fb- Output Hash
2ce74fa3d6f9bcd94f2ec1be0c19ab3e31bfd1a0811c6a94aa3f6db9cf33c107- Signature
ed25519:8e35ad3823ec082c052d860e82830db820a687b2293f70142e8b764d06c0ee9d70c090522f82e54c918033e36d67d958d9fe0150198dd216066b270916a1ed07- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast