zfc.edu.cn
Observed Aug 3, 2026, 05:18 UTC (19h 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.
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zfc.edu.cn actually stands on - every host below is a signed observation
zfc.edu.cn
A / AAAA
218.75.109.27115.236.60.85
unattributedserves the site
NS
dns4.zfc.edu.cndns2.zfc.edu.cndns1.zfc.edu.cn
edu.cnanswers its DNS
MX
mxbiz2.qq.commxbiz1.qq.com
qq.comreceives its email
DNS Records
A 2
218.75.109.27115.236.60.85
MX 2
20mxbiz2.qq.com10mxbiz1.qq.com
TXT 1
v=spf1 include:spf.mail.qq.com ~all
NS 3
dns4.zfc.edu.cndns2.zfc.edu.cndns1.zfc.edu.cn
SOA 1
ns.zfc.edu.cn mail.zfc.edu.cn
DMARC_RECORDS 1
v=DMARC1; p=reject; rua=mailto:mailauth-reports@qq.com
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 receiptEd25519 Receipt
- Receipt ID
rcpt_322c1d7bb23994fd- Output Hash
f6cfb1290c5a741e610f4266237e048776b4f29032bb2c8c0d6c09eeeabb76b0- Signature
ed25519:ce7d33b19ba021f295bff1fb0d26eb57e5a69287600d652b48917e6cb65c58cd59de47f8f41b1a5b9b7833869cd94215129c87b0a5192955977a4eb8c604ee03- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast