indexo.dev

tonkooiman.com

.com crawl

First seen 2026-05-30 · Last seen 2026-05-30 · ok HTTP/1.1 200 627 ms crawled 2026-05-31

BE · 83.217.74.130 · AS34762 Combell NV

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Ton Kooiman | Woodwind Ergonomics
Language
en-US
Generator
Divi v.4.23.1
Canonical
https://tonkooiman.com/
Feeds

Technology

Server
nginx
CMS
WordPress
jQuery
3.7.1
Fonts
  • Google Fonts

Third-party hosts loaded (1)

  • fonts.googleapis.com×2

Registration

Registrar
Key-Systems GmbH
Created
1999-01-23
Expires
2027-01-23 236 days left
Updated
2026-01-24
Name servers
  • ns3.combell.net
  • ns4.combell.net

DNS records live

NS
  • ns1.combell.eu
  • ns3.combell.net
  • ns4.combell.net
MX
  • 10 mx.mailprotect.be
  • 50 mx.backup.mailprotect.be

Email authentication weak

SPF
v=spf1 mx a include:_spf.relay.mailprotect.be -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2025-09-18 to 2026-10-18
Expires in 139 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://tonkooiman.com/

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

Linked from (1)