nchu.edu.tw
Observed Jul 24, 2026, 03:29 UTC (43m 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 onTaiwan Academic Network (TANet) Information Center
Email byGoogle (SPF sender)
Secured byTAIWAN-CA
Also usesGoogle Search Console
tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat nchu.edu.tw actually stands on - every host below is a signed observation
nchu.edu.tw
A / AAAA
140.120.152.122
Taiwan Academic Network (TANet) Information Centerserves the site
NS
pds.nchu.edu.twnchud1.nchu.edu.tw
edu.twanswers its DNS
MX
sqr.nchu.edu.twsqr2.nchu.edu.tw
Google (SPF sender)receives its email
TLS
*.nchu.edu.tw
TAIWAN-CAissued its certificate
DNS Records
A 1
140.120.152.122
MX 2
5sqr.nchu.edu.tw5sqr2.nchu.edu.tw
TXT 7
google-site-verification=CCRk7PsdL18gyVDLR8z2hSE7Nr6ly9INwYQlr8pVo-0_globalsign-domain-verification=tkL2FLDScrR4Wb8l_l6ywzfailczbL8iUjc6K9DQD4v=spf1 ip4:140.120.152.0/24 include:_spf.google.com include:amazonses.com include:mailgun.org ~allglobalsign-domain-verification=eMPvhZJIA9mBGE_RU6ZC4F0YOXTjuFen4dcJGXSKIkgoogle-site-verification=Hf6oFylGXiXrrv_HDTvnF623vJWyD1Z-eXkewAlB-L0google-site-verification=Y5Fwyhgp5OcuMoSzq2yZhWxB-EEQtO47ux15mAGzkF8v=DMARC1; p=none;
NS 2
pds.nchu.edu.twnchud1.nchu.edu.tw
SOA 1
nchud1.nchu.edu.tw root.nchud1.nchu.edu.tw
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
*.nchu.edu.tw |
C=TW, O=TAIWAN-CA, 2.5.4.11=SSL Sub-CA, CN=TWCA SSL Certification Authority | Wed, 16 Dec 2026 15:59:59 +0000 |
TWCA SSL Certification Authority |
C=TW, O=TAIWAN-CA, 2.5.4.11=Root CA, CN=TWCA CYBER Root CA | Wed, 23 Feb 2033 15:59:59 +0000 |
TWCA CYBER Root CA |
C=TW, O=TAIWAN-CA, 2.5.4.11=Root CA, CN=TWCA Global Root CA | Mon, 09 Dec 2030 15:59:59 +0000 |
TWCA Global Root CA |
C=TW, O=TAIWAN-CA, 2.5.4.11=Root CA, CN=TWCA Global Root CA | Tue, 31 Dec 2030 15:59:59 +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; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_75197f73fb05cd4a- Output Hash
b00178f935e5eaf595a154aa868a389db1a84664ae533bb778fd7ae17d4483e9- Signature
ed25519:8d091c910d59f64b215c2e78ba123c486b679e826646c33ebd2e6e7e003cbee12197c21983933694e914ddfed1692c987e0c9d41edd4cccee2eee81cc624090b- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast