CONTINUOUS INTERNET TELEMETRY24H DRIFT201 material changesacross 161 domains · -457 vs yesterdayCERT DRIFT3 domains switched issuing CA24h · +1 vs yesterdayNOW3,803 curated domains not answering+974 vs yesterdayERRORS24,682 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED69,415 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT201 material changesacross 161 domains · -457 vs yesterdayCERT DRIFT3 domains switched issuing CA24h · +1 vs yesterdayNOW3,803 curated domains not answering+974 vs yesterdayERRORS24,682 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED69,415 throttled or blocked our scanner429 rate-limit / 403 bot-block

81.cn

Observed Jul 18, 2026, 13:47 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onCHINATELECOM JiangSu YangZhou IDC networkdescr: YangZhou
Secured byChina Financial Certification Authority
tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat 81.cn actually stands on - every host below is a signed observation
81.cn
NS
ns1.cdns.cnns4.cgw.cnns2.cdns.cnns3.cgw.cn+1 more
cdns.cn + cgw.cnanswers its DNS
TLS
*.81.cn
China Financial Certification Authorityissued its certificate

DNS Records

NS 5

  • ns1.cdns.cn
  • ns4.cgw.cn
  • ns2.cdns.cn
  • ns3.cgw.cn
  • ns3.cdns.cn

SOA 1

  • ns1.cdns.cn mail.cnnic.cn

TLS Certificates (3)

Common NameIssuerExpires
*.81.cn C=CN, O=China Financial Certification Authority, CN=CFCA OV OCA Sat, 20 Mar 2027 07:15:44 +0000
CFCA OV OCA C=CN, O=China Financial Certification Authority, CN=CFCA EV ROOT Tue, 25 Dec 2029 02:02:56 +0000
CFCA EV ROOT C=CN, O=China Financial Certification Authority, CN=CFCA EV ROOT Mon, 31 Dec 2029 03:07:01 +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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for 81.cn. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for 81.cn <a href="https://domaindrift.io/t/81.cn"> <img src="https://domaindrift.io/badge/81.cn.svg" width="300" height="64" alt="DomainDrift signed observations for 81.cn"> </a>

Ed25519 Receipt

Receipt ID
a57ca7a9-9034-4cef-b6ad-3dde00a665c4
Output Hash
34ce7f5c952dc386c90ab97b1423af35f7b4bfb75c551c058872ac345e92b966
Signature
ed25519:3a6fd8fdcd440c52511d06b24aea03518cde732fe5935396166bcada46be315754701d7a539bba4b6131b07f2596270a68d104ca545acaabe1091bd784e3020f
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser