indexo.dev

holtzbrinck.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-15 · ok HTTP/1.1 200 1564 ms crawled 2026-05-08

DE · 188.40.218.81 · AS24940 Hetzner Online GmbH

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Home - Holtzbrinck
Description
Holtzbrinck is a global group of companies dedicated to inspiring progress through creativity, courage, and integrity.
Language
en
Generator
Contao Open Source CMS
Translations
  • de
  • en

Open Graph

site name
Holtzbrinck

Technology

Server
Apache

Social

Registration

Registrar
Mesh Digital Limited
Created
1997-07-31
Expires
2026-07-30 71 days left
Updated
2025-07-29
Name servers
  • ns71.domaincontrol.com
  • ns72.domaincontrol.com

DNS records live

NS
  • ns71.domaincontrol.com
  • ns72.domaincontrol.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
Show 9 TXT records
  • atlassian-domain-verification=aE1S5NYibvstTac9hKsh3WuxTDc9fgC3EamozFJtMnfTvUFA8iHCeMTEDiCFV7MJ
  • miro-verification=d0e30ee8b91a722aae28198c4e72dcf0192f2807
  • MS=ms50832950
  • google-site-verification=SrbWrGxfjNsuGvbLBPWRoo764XjaiIsEEItpDhRYp1k
  • apple-domain-verification=4oEtmynLlxohj8zc
  • successfactors-site-verification=ZWE4ZmNjYzQxMDY4NTFiZjJhNDNlMjlhMjJjODA4ODQ0NGE2ZDUwNDJkYzJiZmIxYWRmY2EzYzJlMThjZTQwZQ==
  • MS=9C0973D81DAE4156A60CAB340C560FC7DEC6486B
  • google-site-verification=vL9mYqXiO8nq95TL0Ggdojma3L1VOMrhFiavPK4JYtk
  • bw=VyRBXIenUPw1mpmS2FAO187tbmD1M7fkd4CEJb9Uag9B

Email authentication partial

SPF
v=spf1 include:_spf.google.com include:_spf-dc2.successfactors.com ip4:94.135.231.236 ip4:153.95.95.86 ip4:153.95.95.88 ip4:208.185.235.45 ip4:18.168.51.200 ip4:35.214.212.238 -all
strict (-all)
DMARC
v=DMARC1; p=none; pct=100; rua=mailto:re+qnwqyrvchgf@dmarc.postmarkapp.com,mailto:support@cloudpilots.com; sp=none; aspf=r;
policy: none (monitoring only) · sp=none
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxOXQaBXXxAkqDMDW6cIBwZUY1da7Shf2mWCEDQAjVUHCQlXsmHXFrQa+wvUFyFmj5WT34cKR45I5M0…
selectors probed

Certificate (current)

Starfield Secure Certificate Authority - G2
from 2025-10-07 to 2026-10-08
Expires in 142 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 95/100 Checked live page: https://holtzbrinck.com/en/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • weak frame protection
Header values
referrer-policy
no-referrer-when-downgrade, strict-origin-when-cross-origin
x-frame-options
ALLOW-FROM medienjobs.boersenblatt.net
permissions-policy
interest-cohort=()
x-content-type-options
nosniff
content-security-policy
default-src 'self'; frame-src 'self' https://www.linkedin.com/; script-src 'self' https://insight.holtzbrinck.com; style-src 'self'; img-src 'self' data:; font-src 'self' data:; connect-src 'self' insight.holtzbrinck.com;
strict-transport-security
max-age=31536000; includeSubDomains

Links to (3)

Linked from (6)