tc.edu.tw

Observed Jul 22, 2026, 00:17 UTC (2d 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.

Verify this receipt yourself + Watch this domain

Up right now

Runs onTaiwan Academic Network (TANet) Information Center

Email byGoogle Workspace

Secured byTAIWAN-CA

20 subdomains · tranco_20k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat tc.edu.tw actually stands on - every host below is a signed observation

tc.edu.tw

A / AAAA

140.128.53.66

Taiwan Academic Network (TANet) Information Centerserves the site

dns.tc.edu.twdns2.tc.edu.tw

edu.twanswers its DNS

ALT3.ASPMX.L.GOOGLE.COMALT2.ASPMX.L.GOOGLE.COMALT4.ASPMX.L.GOOGLE.COMALT1.ASPMX.L.GOOGLE.COM+1 more

Google Workspacereceives its email

TLS

www.tc.edu.tw

TAIWAN-CAissued its certificate

DNS Records

A 1

140.128.53.66

MX 5

10ALT3.ASPMX.L.GOOGLE.COM
5ALT2.ASPMX.L.GOOGLE.COM
20ALT4.ASPMX.L.GOOGLE.COM
5ALT1.ASPMX.L.GOOGLE.COM
1ASPMX.L.GOOGLE.COM

TXT 8

MS=ms77279060
ed762d4fc7aefb4e2be65556d5504513dteb866c3381043d41db27827807f0f1219
nab1gm5j7c617jo1ocd62fdmit
Public-CA-domain-verification=83685A44A2C665E67E7DA58F1F1CF4D2
Public-CA-domain-verification=038F66E17E04C8CD6454D42F2F1579D0
74c2a2d02051a8cb3e796a77590876da5a6394642d0f17307fbf036983d25bc
v=spf1 ip4:163.17.40.2 ip4:163.17.40.35 ip4:163.17.40.53 ip6:2001:288:5400::35 ip6:2001:288:5400::53 ip6:2001:288:5400::2 include:_spf.google.com a mx ~all
v=DMARC1; p=none; rua=mailto:dmarc-reports@tc.edu.tw

NS 2

dns.tc.edu.tw
dns2.tc.edu.tw

SOA 1

dns.tc.edu.tw nc-net.tc.edu.tw

TLS Certificates (3)

Common Name	Issuer	Expires
`www.tc.edu.tw`	C=TW, O=TAIWAN-CA, CN=TWCA Secure SSL Certification Authority	Fri, 09 Oct 2026 15:59:59 +0000
`TWCA Secure SSL Certification Authority`	C=TW, O=TAIWAN-CA, 2.5.4.11=Root CA, CN=TWCA Global Root CA	Wed, 16 Oct 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 (20)

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 tc.edu.tw. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/tc.edu.tw">
  <img src="https://domaindrift.io/badge/tc.edu.tw.svg"
       width="300" height="64" alt="DomainDrift signed observations for tc.edu.tw">
</a>

Ed25519 Receipt

Receipt ID: rcpt_5e23c6e301e2fd1b
Output Hash: 56ff6ce6010caacae3f9f7bebbea38c8041e6edf0e88f7bebb1fecc7ab67a11c
Signature: ed25519:1a2c0135ecec6511e8d1df9d09634dbacecc118897cd78cbcd7d4e4f897177f2113726373dd42be354cfb0cd4057f3737bfe5b4e6a8ea532bf1791d20f6d4d07
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

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