videolectures.net

Observed Jul 24, 2026, 22:38 UTC (8d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.

Verify this receipt yourself + Watch this domain

Up right now

Runs onCloudflare

Email byGoogle Workspace

Secured byGoogle Trust Services

IPv6 · tranco

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat videolectures.net actually stands on - every host below is a signed observation

videolectures.net

A / AAAA

104.21.62.123172.67.223.1962606:4700:3031::6815:3e7b2606:4700:3037::ac43:dfc4

Cloudflareserves the site

huxley.ns.cloudflare.comjacqueline.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

videolectures.net

Google Trust Servicesissued its certificate

DNS Records

A 2

104.21.62.123
172.67.223.196

AAAA 2

2606:4700:3031::6815:3e7b
2606:4700:3037::ac43:dfc4

MX 5

1aspmx.l.google.com
10alt3.aspmx.l.google.com
10alt4.aspmx.l.google.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com

NS 2

huxley.ns.cloudflare.com
jacqueline.ns.cloudflare.com

SOA 1

huxley.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`videolectures.net`	C=US, O=Google Trust Services, CN=WE1	Tue, 22 Sep 2026 17:43:01 +0000
`WE1`	C=US, O=Google Trust Services LLC, CN=GTS Root R4	Tue, 20 Feb 2029 14:00:00 +0000
`GTS Root R4`	C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA	Fri, 28 Jan 2028 00:00:42 +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.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for videolectures.net. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/videolectures.net">
  <img src="https://domaindrift.io/badge/videolectures.net.svg"
       width="300" height="64" alt="DomainDrift signed observations for videolectures.net">
</a>

Ed25519 Receipt

Receipt ID: rcpt_ef99835c8de2c51a
Output Hash: f7ee377fac7e2390016f3b53012ad28b4c36975772e9a3164fd50a32799172f1
Signature: ed25519:a9cc79b3e11d385abe3d240dc671527ed9383bd9723ff813f9a0da722fe152e9557b594dd27015053f2570dceda2d22e2085cb70818ecc6147e610b0a366240b
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/videolectures.net