indexo.dev

portal21.de

.de crawl

First seen 2026-04-23 · Last seen 2026-05-14 · ok HTTP/1.1 200 6342 ms crawled 2026-05-17

DE · 185.49.16.81 · AS25516 init AG fuer digitale Kommunikation

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Portal21
Description
Homepage

Technology

Server
Varnish

Registration

Updated
2009-11-20
Name servers
  • ns1-eu.123ns.eu.
  • ns2-eu.123ns.de.
  • ns3-eu.123ns.eu.
  • ns4-eu.123ns.de.

DNS records live

NS
  • ns1-eu.123ns.eu
  • ns2-eu.123ns.de
  • ns3-eu.123ns.eu
  • ns4-eu.123ns.de
MX
  • 10 mail.portal21.de
TXT
  • _telesec-domain-validation=339990_2025-08-25_dlD4yMbBo06V2ZloBn64dDiFRgSssvYyuBdkL1Is9duOvyQGIu
  • _telesec-domain-validation=326201_2024-01-09_6YIg2bIAqxdFDojt8aYSWL0pebNtOohME0zgLdvH35G1eJxXxo

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Telekom Security ServerID OV Class 2 CA
from 2025-08-26 to 2026-08-31
Expires in 103 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://www.portal21.de/

present
  • content-security-policy
  • x-frame-options
findings
  • missing HSTS
  • CSP uses wildcard sources
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
DENY
content-security-policy
default-src *.crazyegg.com 'self';frame-ancestors localhost:* *.africa-business-guide.de *.ixpos.de *.portal21.de *.gtai.de *.gtai-exportguide.de *.foerderlotse-wachstumsmaerkte.de *.german-business-portal.info *.init-ag.de *.etracker.com 'self';frame-src localhost:* *.africa-business-guide.de *.ixpos.de *.portal21.de *.gtai.de *.gtai-exportguide.de *.foerderlotse-wachstumsmaerkte.de *.german-business-portal.info *.init-ag.de app.datawrapper.de *.dwcdn.net api.datawrapper.de https://e.infogram.com https://infogram-download-eu.s3.eu-west-1.amazonaws.com https://app.23degrees.io https://nfg.podigee.io https://player.podigee-cdn.net https://www.youtube.com/ https://www.surveymonkey.de/ https://flo.uri.sh/ *.flourish.studio *.twitter.com *.facebook.com *.facebook.net *.linkedin.com *.xing.com iframe.biotechgate.com www.crazyegg.com dihkafrika.twentymedia.de 'self';style-src localhost:* *.africa-business-guide.de *.ixpos.de *.portal21.de *.gtai.de *.gtai-exportguide.de *.foerderlotse-wachst

Links to (4)

Linked from (1)