indexo.dev

jonathanwarner.nl

.nl crawl

First seen 2026-05-27 · Last seen 2026-05-27 · ok HTTP/1.1 200 1236 ms crawled 2026-05-30

US · 198.202.211.1 · AS209242 Cloudflare London, LLC

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Home | Jonathan Warner
Description
Leadership is a team effort
Language
en

Technology

CDN
Cloudflare
jQuery
3.5.1
Fonts
  • Google Fonts
Third-party hosts loaded (10)
  • cdn.prod.website-files.com×39
  • cdn.jsdelivr.net×5
  • cdnjs.cloudflare.com×3
  • assets.wemetbefore.com×2
  • unpkg.com×2
  • ajax.googleapis.com×1
  • d3e54v103j8qbb.cloudfront.net×1
  • f9n4pn.csb.app×1
  • fonts.googleapis.com×1
  • fonts.gstatic.com×1

Social

Contact

Email

DNS records live

NS
  • ns01.one.com
  • ns02.one.com
MX
  • 0 jonathanwarner-nl.mail.protection.outlook.com

Email authentication weak

SPF
v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-05-06 to 2026-08-04
Expires in 63 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://jonathanwarner.nl/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=31536000

Links to (1)

Linked from (1)