zhjwpku.com
Observed Aug 10, 2026, 08:09 UTC (11h 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
Secured byLet's Encrypt
domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zhjwpku.com actually stands on - every host below is a signed observation
zhjwpku.com
A / AAAA
185.199.111.153185.199.109.153185.199.110.153185.199.108.153
unattributedserves the site
NS
dns10.hichina.comdns9.hichina.com
hichina.comanswers its DNS
MX
mxn.mxhichina.commxw.mxhichina.com
mxhichina.comreceives its email
TLS
zhjwpku.com
Let's Encryptissued its certificate
DNS Records
A 4
185.199.111.153185.199.109.153185.199.110.153185.199.108.153
MX 2
5mxn.mxhichina.com10mxw.mxhichina.com
TXT 1
v=spf1 include:spf.mxhichina.com ~all
NS 2
dns10.hichina.comdns9.hichina.com
SOA 1
dns9.hichina.com hostmaster.hichina.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
zhjwpku.com |
C=US, O=Let's Encrypt, CN=YR2 | Wed, 16 Sep 2026 19:34:22 +0000 |
YR2 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_bb7ab972b66fd9c8- Output Hash
c9d59ac3e50ff5841816251a9ae772002ef6f3f7a82025282737014dae5c6c73- Signature
ed25519:839b31978f48a15d435e7cda3e7a3638537003f72bbf542b1b1d209f5b1556c5e5b5b59187f86ae04af37edc7014aa9716daaee31b2beeca395c84b5f0956d03- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast