51dns.com
Observed Jul 21, 2026, 16:45 UTC (2d 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.
Up right now
Runs onCHINANET Guangdong province network
Secured byAsseco Data Systems S.A.
IPv6 · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat 51dns.com actually stands on - every host below is a signed observation
51dns.com
A / AAAA
211.99.99.89240e:97d:10:1402:0:1:0:2
CHINANET Guangdong province networkserves the site
NS
m1.51dns.comm2.51dns.com
51dns.comanswers its DNS
MX
mxbiz1.qq.commxbiz2.qq.com
qq.comreceives its email
TLS
*.51dns.com
Asseco Data Systems S.A.issued its certificate
DNS Records
A 1
211.99.99.89
AAAA 1
240e:97d:10:1402:0:1:0:2
MX 2
5mxbiz1.qq.com10mxbiz2.qq.com
TXT 2
v=spf1 include:spf.mail.qq.com ~all864335953-309712597
NS 2
m1.51dns.comm2.51dns.com
SOA 1
m1.51dns.com admin.51dns.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
*.51dns.com |
C=PL, O=Asseco Data Systems S.A., CN=Certum DV TLS G2 R39 CA | Sat, 30 Jan 2027 06:20:58 +0000 |
Certum DV TLS G2 R39 CA |
C=PL, O=Asseco Data Systems S.A., 2.5.4.11=Certum Certification Authority, CN=Certum Trusted Root CA | Sun, 05 Jun 2039 07:41:22 +0000 |
Certum Trusted Root CA |
C=PL, O=Unizeto Technologies S.A., 2.5.4.11=Certum Certification Authority, CN=Certum Trusted Network CA | Tue, 19 Sep 2028 10:00:00 +0000 |
Certum Trusted Network CA |
C=PL, O=Unizeto Technologies S.A., 2.5.4.11=Certum Certification Authority, CN=Certum Trusted Network CA | Mon, 31 Dec 2029 12:07:37 +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_162a5ba695031299- Output Hash
049e1838f04cd35ab84400ace871ec850b62cdd71dfab414a98fce3f13ad281a- Signature
ed25519:e1cb4060a7ab614bd4cdde3835aa59f65a0a423f2cbacf4466809fb975c7ede32ef0ead3f48ffca5b900eb292e84d2cbe7cc13f3060870b725b958438b354a0d- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast