ustcori.com
Observed Aug 3, 2026, 02:39 UTC (8h 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 ustcori.com actually stands on - every host below is a signed observation
ustcori.com
A / AAAA
183.162.239.157
unattributedserves the site
NS
dns30.hichina.comdns29.hichina.com
hichina.comanswers its DNS
MX
mxbiz1.qq.commxbiz2.qq.com
qq.comreceives its email
DNS Records
A 1
183.162.239.157
MX 2
5mxbiz1.qq.com10mxbiz2.qq.com
TXT 1
v=spf1 include:spf.mail.qq.com ~all
NS 2
dns30.hichina.comdns29.hichina.com
SOA 1
dns29.hichina.com hostmaster.hichina.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_cb4a36fcae9b7d89- Output Hash
4bebe4ef8ebec11f7f61d6457251980e61a8a0d75aed0daa1e78d082f6d518b0- Signature
ed25519:9f131e0c2a0b192f68eda05518995df1dd003f59c99a59e1aad2bfeeea1b012c8f258c6173e7f3b069d92587c6d21f5a13693b62f3694b0243a680bd5a50ef0f- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast