nptel.ac.in

Observed Aug 11, 2026, 05:27 UTC (10d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of nptel.ac.in was taken 10d ago

nptel.ac.in is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting nptel.ac.in 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 nptel.ac.in Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Up right now
Runs onGoogle
Email byGoogle Workspace
Secured byGoogle Trust Services
Registered toIndian Institute of Technology Madras
Registered withERNET India
Also usesGoogle Search ConsoleLinkedIn
1 subdomain · tranco_10k
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT

Steady. No change on record for nptel.ac.in 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 17

A1NS4MX6TXT5SOA1

TLS certificates 3

Issued byGoogle Trust Services, GlobalSign
ExpiresFri, 30 Oc (70d)
Certificate nameswithheld

Subdomains 1

1 subdomain hostname 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_a15e299d6b2edeb8
Output Hash
05a95cf6fdd0e9ed17b9f82d8e4f01517e48fc4b9c9eb8699a67120efd9f4523
Signature
ed25519:c93d77d1fb812d6034e46b2d0a81366b26a2bbd41dd1f3c184524429a591ff8dcbb6aa64ab6b2f842954b620f0690a939edccdc46237c49118dabdfb6e90ae06
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
CONTINUOUS INTERNET TELEMETRY24H DRIFT2,601 material changes on watched domainsacross 157 domains · last 24h · the catalog-wide count is re-measuringROTATION76 domains moved DNS from kirklanddc.com to koaladns.com, 75 moved backa rotation loop, not a migration · 24hREGISTRAR DRIFT4 changed registrar24hNOW196 curated domains not reachablelast probe, steadySITE ERRORS17,826 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 77,743 sites429 rate-limit / 403 bot-block, a posture signal