indexo.dev

operabook.org

.org crawl

First seen 2026-04-12 · Last seen 2026-05-19 · ok HTTP/1.1 200 2443 ms crawled 2026-05-04

FR · 185.133.54.148 · AS203495 Netsample SAS

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Operabook
Language
en

Technology

Server
nginx
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (3)

  • cdn.jsdelivr.net×2
  • fonts.googleapis.com×1
  • www.googletagmanager.com×1

Registration

Registrar
Key-Systems GmbH
Created
2019-05-23
Expires
2026-05-23 2 days left
Updated
2025-11-24
Name servers
  • ns1.dcube-resource.be
  • ns2.dcube-resource.be
  • ns4.dcube-resource.be

DNS records live

NS
  • ns1.dcube-resource.be
  • ns2.dcube-resource.be
  • ns4.dcube-resource.be
MX
  • 10 mx1.dcube-resource.be
  • 20 mx2.dcube-resource.be
TXT
  • v=spf1 include:_spf.dcube-resource.be ~all

Certificate (current)

R12
from 2026-05-01 to 2026-07-30
Expires in 70 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://operabook.org/en/

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

Links to (1)

Linked from (1)