indexo.dev

opportuno.de

.de crawl

First seen 2026-05-30 · Last seen 2026-05-31 · ok HTTP/1.1 200 547 ms crawled 2026-05-31

US · 104.21.63.253 · AS13335 Cloudflare, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
EINE Jobsuche für alle Jobs & Jobbörsen | Opportuno
Description
Wir durchsuchen tausende Websites und Jobbörsen nach den besten Jobs im Netz, damit Ihnen keine Stellenangebote entgehen.
Language
de

Technology

CDN
Cloudflare
JS framework
Angular 10.1.3
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×1

Registration

Updated
2018-05-03
Name servers
  • bonnie.ns.cloudflare.com.
  • woz.ns.cloudflare.com.

DNS records live

NS
  • bonnie.ns.cloudflare.com
  • woz.ns.cloudflare.com
MX
  • 10 in1.smtp.messagingengine.com
  • 20 in2.smtp.messagingengine.com
Verified for
  • Google

Email authentication weak

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

Certificate (current)

WE1
from 2026-04-08 to 2026-07-07
Expires in 34 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.opportuno.de/

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

Linked from (2)