leidenranking.com

Observed Aug 11, 2026, 01:58 UTC (23d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of leidenranking.com was taken 23d ago

leidenranking.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting leidenranking.com 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 leidenranking.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Up right now
Runs onSURF B.V
Secured byHellenic Academic and Research Institutions CA
Registered withKey-Systems GmbH
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT

Steady. No change on record for leidenranking.com 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 6

A1NS3TXT1SOA1

TLS certificates 3

Issued byHellenic Academic and Research Institutions CA, Hellenic Academic and Research Institutions Cert. Authority
ExpiresFri, 19 Fe (169d)
Certificate nameswithheld

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 receiptthe raw cryptographic proof
Receipt ID
rcpt_b9835a18991b5631
Output Hash
fd9ca99e7d307791b28d8b369df2fb65e7ac7475219579eb7a9655995fd4d2c5
Signature
ed25519:99ee1c7e8ef4a8f28f9aad541d221f1fe5d24b59ed2c0ec2b07de1095eff0921c97fb7d6669c932784d9082ecddd46b1e62cff6818e85ead17bd2c910c519401
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
CONTINUOUS INTERNET TELEMETRY24H DRIFT8,749 material changesacross 7,005 domains · 24h to ~3h ago · +1,126 vs yesterdayDNS DRIFT86 domains changed DNS providertop destination koaladns.comCERT DRIFT1 domains switched issuing CA24hREGISTRAR DRIFT3 changed registrar24hNOW618 curated domains not reachablelast probe, steadySITE ERRORS18,186 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 80,378 sites429 rate-limit / 403 bot-block, a posture signal