CONTINUOUS INTERNET TELEMETRY24H DRIFT5,897 material changesacross 5,564 domains · 24h to ~2h ago · -2,866 vs yesterdayNOW560 curated domains not reachablelast probe, steadySITE ERRORS34,304 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,289 sites429 rate-limit / 403 bot-block, a posture signalMOVERokta.comNo mail routes in the latest observation

ustc.edu.cn

Observed Jul 24, 2026, 20:13 UTC (9d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of ustc.edu.cn was taken 9d ago

ustc.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 ustc.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 ustc.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 byZeroSSL GmbH
Also usesGoogle Search Console
IPv6 · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ustc.edu.cn actually stands on - every host below is a signed observation
ustc.edu.cn
A / AAAA
202.38.64.2462001:da8:d800:642::248
2001serves the site
NS
mx.ustc.edu.cnns.ustc.edu.cn
edu.cnanswers its DNS
MX
smtp.ustc.edu.cn
edu.cnreceives its email
TLS
ustc.edu.cn
ZeroSSL GmbHissued its certificate

DNS Records

A 1

  • 202.38.64.246

AAAA 1

  • 2001:da8:d800:642::248

MX 1

  • 5smtp.ustc.edu.cn

TXT 4

  • MS=ms26813611
  • google-site-verification=n_uAijUqmjntOJL0L8N4SIIdw_3cAngmXFBIYgIDNkg
  • v=spf1 ip4:202.38.64.8 ip4:202.38.64.16 ip4:202.38.64.46 ip4:210.45.120.152 ip4:202.141.161.73 ip4:195.128.10.69 ip4:199.168.14.54 ip4:202.141.163.236 ip4:205.201.128.18 ip4:210.45.71.12 ip4:195.128.10.18 ip4:195.128.10.15 -all
  • v=DMARC1; p=quarantine; rua=mailto:postmaster@ustc.edu.cn

NS 2

  • mx.ustc.edu.cn
  • ns.ustc.edu.cn

SOA 1

  • ns.ustc.edu.cn james.ustc.edu.cn

TLS Certificates (3)

Common NameIssuerExpires
ustc.edu.cn C=AT, O=ZeroSSL GmbH, CN=ZeroSSL RSA DV SSL CA 2 Sat, 26 Sep 2026 23:59:59 +0000
ZeroSSL RSA DV SSL CA 2 C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46 Sun, 23 Sep 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; nothing leaves your machine.

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Ed25519 Receipt

Receipt ID
rcpt_b329b121e602dc72
Output Hash
230a27a7b8d30455c55a7ea95ae9850a6b4a3c3a32f5a1ffe9ff2779fdbee0e3
Signature
ed25519:6c9ca6b76259d9de409dac10b5e6a5f66f1a5a9d6aa32976178bb99edd5a2e90257b9cf534457895145fd3fc4275417cc84cecad04843a8a9bf84f992e867704
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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