bigc.edu.cn

Observed Aug 10, 2026, 21:56 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

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

bigc.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 bigc.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 bigc.edu.cn Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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 bigc.edu.cn actually stands on - every host below is a signed observation
bigc.edu.cn
NS
info4.bigc.edu.cndns.bigc.edu.cn
edu.cnanswers its DNS
MX
mxbiz1.qq.commxbiz2.qq.com
qq.comreceives its email

DNS Records

MX 2

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

TXT 1

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

NS 2

  • info4.bigc.edu.cn
  • dns.bigc.edu.cn

SOA 1

  • info4.bigc.edu.cn mail.bigc.edu.cn

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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_387d07d9615102fb
Output Hash
5a6a0f25fba200c7b0055ae56615ec8cb3d6c07d6e31a103a6d3b97fab308bc3
Signature
ed25519:7519cfe066a68f60c8398cf9628245398adb343627adeca25b118a4d9cbe4c515575b4734e5cef502935b12b2f3090c13355d9fe48d5ab2a57f3adcbc16b1104
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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CONTINUOUS INTERNET TELEMETRY24H DRIFT45,898 material changesacross 43,837 domains · 24h to ~2h ago · +28 vs yesterdayROTATION56 domains moved DNS from magpiedns.com to koaladns.com, 55 moved backa rotation loop, not a migration · 24hNOW490 curated domains not reachablelast probe, steadySITE ERRORS36,284 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 115,595 sites429 rate-limit / 403 bot-block, a posture signal