ctu.edu.vn

Last scanned 10h ago; the signed record is unchanged since 16d ago. Every field below carries an Ed25519 signature from that last reading. Catalog observation, re-checked on rotation - watch it for 5-minute checks.

Up right now
Runs onVietnam Posts and Telecommunications (VNPT)
Email byGoogle Workspace
Secured byGlobalSign
Also usesAppleCiscoMicrosoft 365Google Search Console
4 subdomains · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT

Steady. No change on record for ctu.edu.vn in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.

SIGNED-OUT VIEW Provider names, posture and counts are shown. The record values - every DNS answer, each subdomain hostname, raw TXT, IPs, cert names and WHOIS - are the product. Sign in for the full signed record, or use the API with a key.

DNS records 16

A1NS2MX5TXT7SOA1

TLS certificates 2

Issued byGlobalSign
ExpiresTue, 18 Au (-10d)
Certificate nameswithheld

Subdomains 4

4 subdomain hostnames observed and signed - the list itself is part of the paid record.

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 receiptthe raw cryptographic proof
Receipt ID
rcpt_f27af5de7f739c2a
Output Hash
6e8e751a3fc1e6deda2b42825e35ad41c17dca2d19ceb37868197be0ac76016b
Signature
ed25519:db96b8bc1b81a1b1d623f29a53e0a88a2383ae238e9ed4ba4b7a7e29161fc5a19bebb2925a2ffb46c5eaed33f3e38b02d147e389ffbac23c220a3c14103a6c00
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
CONTINUOUS INTERNET TELEMETRY24H DRIFT3,878 material changesacross 2,410 domains · 24h to ~2h ago · -21,221 vs yesterdayROTATION56 domains moved DNS from kirklanddc.com to koaladns.com, 55 moved backa rotation loop, not a migration · 24hREGISTRAR DRIFT3 changed registrar24hNOW556 curated domains not reachablelast probe, steadySITE ERRORS17,822 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 78,594 sites429 rate-limit / 403 bot-block, a posture signal