lynda.com

Observed Jul 18, 2026, 12:23 UTC (19h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle (SPF sender)

Secured byDigiCert

Registered withMarkMonitor Inc.

Also usesGoogle Search Console

IPv6 · 10 subdomains · push_legacy

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

INFRASTRUCTURE MAPwhat lynda.com actually stands on - every host below is a signed observation

lynda.com

A / AAAA

130.211.32.142600:1901:0:d5ad::

Cloudflareserves the site

ns1-42.azure-dns.comns2-42.azure-dns.netns3-42.azure-dns.orgns4-42.azure-dns.info+4 more

azure-dns.com + azure-dns.net + moreanswers its DNS

mail.linkedin.commail-d.linkedin.commail-a.linkedin.commail-c.linkedin.com

Google (SPF sender)receives its email

TLS

lynda.com

DigiCert Incissued its certificate

DNS Records

A 1

130.211.32.14

AAAA 1

2600:1901:0:d5ad::

MX 4

20mail.linkedin.com
15mail-d.linkedin.com
10mail-a.linkedin.com
15mail-c.linkedin.com

TXT 7

MS=ms48400913
MS=ms56649312
_xqfeq9o3rn2e8qlraki47908h5c9mf1
google-site-verification=otgwTIY9F-b-FfbfbUI2VALTkgGcwyo7qhoj6vzSDIA
v=spf1 ip4:216.84.189.0/24 ip4:64.18.0.0/20 ip4:91.143.106.55 ip4:107.21.2.3 a:zgateway.zuora.com include:_spf.google.com include:mktomail.com include:_spf1.lynda.com include:linkedin.com ~all
wz2pkrghvpwld0jlvm13jqlqxqjtq6bn
v=DMARC1; p=reject; rua=mailto:linkedin@rua.agari.com; ruf=mailto:linkedin@ruf.agari.com

NS 8

ns1-42.azure-dns.com
ns2-42.azure-dns.net
ns3-42.azure-dns.org
ns4-42.azure-dns.info
dns1.p09.nsone.net
dns2.p09.nsone.net
dns3.p09.nsone.net
dns4.p09.nsone.net

SOA 1

ns1-42.azure-dns.com hostmaster.linkedin.com

SRV 6

xmpp-server.l.google.com:5269 p5
xmpp-server4.l.google.com:5269 p20
xmpp-server3.l.google.com:5269 p20
xmpp-server1.l.google.com:5269 p20
xmpp-server2.l.google.com:5269 p20
exch101-v2b.video2brain.com:443 p100

CAA 1

contactemail "caarecordaware@microsoft.com"

TLS Certificates (3)

Common Name	Issuer	Expires
`lynda.com`	C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1	Fri, 27 Nov 2026 23:59:59 +0000
`DigiCert Global G2 TLS RSA SHA256 2020 CA1`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2	Sat, 29 Mar 2031 23:59:59 +0000
`DigiCert Global Root G2`	C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2	Fri, 15 Jan 2038 12:00:00 +0000

Subdomains (10)

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 lynda.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 13bd9e84-d373-4e21-8b34-4f9ea007d458
Output Hash: 8b4e775b2ea500712f6ce9bd53effa3dba70020df001ed933598e955aa4505dc
Signature: ed25519:bd10f0877c41f47d3a2c0c07535ba832fdf1f7231084a49b9718be3b8541592967b6208b2329a250ed8fb775fc334799734640c3442fb4a169b9559228518a02
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/lynda.com