CONTINUOUS INTERNET TELEMETRY24H DRIFT71,617 material changesacross 67,026 domains · 24h to ~35m ago · +37,000 vs yesterdayROTATION57 domains moved DNS from koaladns.com to magpiedns.com, 56 moved backa rotation loop, not a migration · 24hNOW533 curated domains not reachablelast probe, steadySITE ERRORS33,847 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 126,417 sites429 rate-limit / 403 bot-block, a posture signal

upc.edu.cn

Observed Aug 3, 2026, 01:36 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of upc.edu.cn was taken 3d ago

upc.edu.cn is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting upc.edu.cn under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch upc.edu.cn Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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Up right now
Secured byWoTrus CA Limited
IPv6 · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat upc.edu.cn actually stands on - every host below is a signed observation
upc.edu.cn
A / AAAA
121.251.249.56240c:ca04:0:149::56
240cserves the site
NS
dns1.upc.edu.cndns2.upc.edu.cn
edu.cnanswers its DNS
MX
mxbiz1.qq.commxbiz2.qq.com
qq.comreceives its email
TLS
*.upc.edu.cn
WoTrus CA Limitedissued its certificate

DNS Records

A 1

  • 121.251.249.56

AAAA 1

  • 240c:ca04:0:149::56

MX 2

  • 5mxbiz1.qq.com
  • 10mxbiz2.qq.com

TXT 1

  • v=spf1 include:spf.mail.qq.com ~all

NS 2

  • dns1.upc.edu.cn
  • dns2.upc.edu.cn

SOA 1

  • dns1.upc.edu.cn root.dns1.upc.edu.cn

TLS Certificates (3)

Common NameIssuerExpires
*.upc.edu.cn C=CN, O=WoTrus CA Limited, CN=WoTrus RSA OV SSL CA 2 Sat, 02 Jan 2027 23:59:59 +0000
WoTrus RSA OV SSL CA 2 C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46 Sun, 19 Aug 2035 23:59:59 +0000
Sectigo Public Server Authentication Root R46 C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority Mon, 18 Jan 2038 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.

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Ed25519 Receipt

Receipt ID
rcpt_074019532269f9fb
Output Hash
23af2565ea0d0714c183e60a4f3776d8760c120d76a77291eca126a7473be01b
Signature
ed25519:caa8d7e499434bd6a6b4081bf0f32ee9fa25c0314c89ebc4ff3fbee2355d59d7821ae8bc6c9c22f631cc1fabdc54d82366c9bff7de83666eb6462ec78f81b90c
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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