carl-zeiss-stiftung.de

HTML metadata

Technology

Server

Apache

Cookie consent

• Usercentrics

Third-party hosts loaded (2)

• app.usercentrics.eu×1
• privacy-proxy.usercentrics.eu×1

Social

• linkedin
• instagram
• youtube
• bluesky

Registration

Updated

2025-09-22

Name servers

• a1-232.akam.net.
• a13-66.akam.net.
• a18-66.akam.net.
• a26-67.akam.net.
• a7-64.akam.net.
• a8-64.akam.net.

DNS records live

NS

• a1-232.akam.net
• a13-66.akam.net
• a18-66.akam.net
• a26-67.akam.net
• a7-64.akam.net
• a8-64.akam.net

MX

• 10 mx-in01.eu.retarus.com
• 10 mx-in02.eu.retarus.com

TXT

• _a36k1sspztl5bmb9f2idc6qnipz2yav

Verified for

• Adobe
• Google
• Microsoft 365

Email authentication strong

SPF

v=spf1 a include:test1.carl-zeiss-stiftung.de include:test2.carl-zeiss-stiftung.de include:_spf.salesforce.com include:mail.carl-zeiss-stiftung.de include:spf-mx.zeiss.com include:spf.crsend.com include:spf.protection.outlook.com ip4:13.93.6.20 ip4:13.93.1.48 ~all

softfail (~all)

DMARC

v=DMARC1;p=reject;rua=mailto:cit-ow-ucomteam@carl-zeiss-stiftung.de;

policy: reject (enforced)

DKIM

no key found at common selectors

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.carl-zeiss-stiftung.de/

findings

• missing HSTS
• missing Content Security Policy
• missing frame protection
• missing content type protection
• missing Referrer Policy
• missing Permissions Policy

Links to (4)

• linkedin.com×3
• instagram.com×3
• youtube.com×3
• bsky.app×3

Linked from (6)

• bw-ki.de×3
• bethgelab.org×3
• tzlr.de×2
• astro4edu.org×2
• jenaversum.de×2
• gsonet.org×1