indexo.dev

zertificon.com

.com crawl

First seen 2026-05-09 · Last seen 2026-05-15 · ok HTTP/1.1 200 2787 ms crawled 2026-05-15

US · 104.20.36.74 · AS13335 Cloudflare, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
Zertificon Solutions GmbH – securing digital business
Description
Email Encryption and large file transfer for enterprises Security & GDPR Compliance – IT Security Made in Germany
Language
en-US
Canonical
https://www.zertificon.com/en/
Translations
  • de
  • en

Technology

CDN
Cloudflare
CMS
WordPress
Analytics
  • Cloudflare Insights
  • Google Tag Manager

Third-party hosts loaded (3)

  • gmpg.org×1
  • static.cloudflareinsights.com×1
  • www.googletagmanager.com×1

Registration

Registrar
Hetzner Online GmbH
Created
2004-10-01
Expires
2026-10-01 134 days left
Updated
2025-11-25
Name servers
  • craig.ns.cloudflare.com
  • ines.ns.cloudflare.com

DNS records live

NS
  • craig.ns.cloudflare.com
  • ines.ns.cloudflare.com
MX
  • 10 mail1.zertificon.com
TXT
Show 6 TXT records
  • D-TRUST=VE59BXNY5BNSG6J2DY4775T
  • MS=861DBBE11A7F559D0190C2C57728A58939ED46483600
  • Sendinblue-code:d89556c29995c914e2e92678dc3fa109
  • _telesec-domain-validation=E82D18F437F94766A860602F4B586E27DDD5AB2203F69408B8BBBE4AECD3E16E
  • google-site-verification=wqA1tyvdeu9APfub3cFGhWleywfr6RnMy9aPH_OdC7Y
  • linkedin-site-verification=138a0c12-7c86-4b4e-b474-c0da663f6cd1

Email authentication strong

SPF
v=spf1 mx ip4:93.92.132.140 a:mail1.zertificon.com ~all
softfail (~all)
DMARC
v=DMARC1; p=reject; rua=mailto:alerting@zertificon.com; ruf=mailto:alerting@zertificon.com; rf=afrf; fo=0:1:d:s; adkim=r; aspf=r
policy: reject (enforced)
DKIM
  • dkim: v=DKIM1; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzenwQQhEw0EKBA2tp7ehD29FsEpmln0svtHDKOob7GlP1KSR5uarvEdlRQ7aK8GGmwlUU1C+ARzWOaBXxFyFO…
selectors probed

Certificate (current)

WE1
from 2026-05-12 to 2026-08-10
Expires in 82 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • CSP uses wildcard sources
Header values
referrer-policy
no-referrer-when-downgrade
x-frame-options
SAMEORIGIN
permissions-policy
microphone=()
x-content-type-options
nosniff
content-security-policy
frame-src 'self' *.supademo.com *.stripe.com *.youtube-nocookie.com *.zertificon.com *.sibforms.com *.jobs.personio.de *.cloudflare.com;
strict-transport-security
max-age=31536000; includeSubDomains

Links to (2)

Linked from (1)