drdavidludwig.com

Observed Jul 27, 2026, 19:33 UTC (4d 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

Also usesGoogle Search Console

IPv6 · domcop

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

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

drdavidludwig.com

A / AAAA

104.21.93.252172.67.217.972606:4700:3036::ac43:d9612606:4700:3032::6815:5dfc

Cloudflareserves the site

deb.ns.cloudflare.comstan.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

drdavidludwig.com

Google Trust Servicesissued its certificate

DNS Records

A 2

104.21.93.252
172.67.217.97

AAAA 2

2606:4700:3036::ac43:d961
2606:4700:3032::6815:5dfc

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

TXT 1

google-site-verification=1BD6WQn7t6hhMj5B1vyIO_pVFmxH3doWTmklL7wQQfA

NS 2

deb.ns.cloudflare.com
stan.ns.cloudflare.com

SOA 1

deb.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`drdavidludwig.com`	C=US, O=Google Trust Services, CN=WE1	Fri, 04 Sep 2026 23:39:44 +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 drdavidludwig.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_f09127c616e0c06d
Output Hash: 43e40812b98d49720735e0fe1daa2efeec8fb2f8d2404061deecb30960e715f3
Signature: ed25519:0020c5678cd8377d06d08052c6c68c169194e387511fdbce60493201bd985eff87f432e116fdb32b811b8c7940b07ea37fe7c09d801df4629f04f2fd2d6dd80f
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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