usability.de

Observed Jul 26, 2026, 08:55 UTC (7d 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

Email byMicrosoft 365

Secured byStarfield Technologies

Also usesGoogle Search Console

IPv6 · 1 subdomain · majestic

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

INFRASTRUCTURE MAPwhat usability.de actually stands on - every host below is a signed observation

usability.de

A / AAAA

92.205.192.32a00:116a:101:a890::

2a00serves the site

ns81.domaincontrol.comns82.domaincontrol.com

domaincontrol.comanswers its DNS

usability-de.mail.protection.outlook.com

Microsoft 365receives its email

TLS

usability.de

Starfield Technologiesissued its certificate

DNS Records

A 1

92.205.192.3

AAAA 1

2a00:116a:101:a890::

MX 1

0usability-de.mail.protection.outlook.com

TXT 7

google-site-verification=yZnOvyy8VsGGA_lGJkDybFkawlhM1Al4Sw2mYVVOfSU
brevo-code:53e0697f8554c9435236e334eb37a66c
google-site-verification=TYPKiZa7GKUdhLclmtQAGxrY3o97TaNQKuaqczoIM2g
anthropic-domain-verification-2xxcb6=mMfZkyZVLs1R0S1Zr6Nw3UBuo
apple-domain-verification=aChqNfI2wJ0q0N1e
v=spf1 include:spf.protection.outlook.com include:ispgateway.de include:spf.brevo.com -all
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:dmarc@usability.de

NS 2

ns81.domaincontrol.com
ns82.domaincontrol.com

SOA 1

ns81.domaincontrol.com dns.jomax.net

TLS Certificates (3)

Common Name	Issuer	Expires
`usability.de`	C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., 2.5.4.11=http://certs.starfieldtech.com/repository/, CN=Starfield Secure Certificate Authority - G2	Thu, 29 Oct 2026 14:32:05 +0000
`Starfield Secure Certificate Authority - G2`	C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Root Certificate Authority - G2	Sat, 03 May 2031 07:00:00 +0000
`Starfield Root Certificate Authority - G2`	C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Root Certificate Authority - G2	Thu, 31 Dec 2037 23:59:59 +0000

Subdomains (1)

www.usability.de

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 usability.de. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_8be30e8671693f5a
Output Hash: 9e7f1d84fd68e3b511944315b0267c1fbf92adc5f9206c2b9e836ff535a21d76
Signature: ed25519:3554d2b3267441926360d43cc79d9e475ad586c9217fb90ade7b44ff4a77cede9cead6785c0e6d39a431067957b33a4238b9e780d82df0b6f4fc837488afd301
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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