duisterbv.nl

.nl crawl

First seen 2026-05-11 · Last seen 2026-05-16 · ok HTTP/1.1 200 3508 ms crawled 2026-05-16

NL · 34.32.223.245 · AS396982 Google LLC

Reputation 100/100

Classifying

HTML metadata

Title: Home - Jan Duister B.V.
Description: Home
Language: nl-NL
Generator: Grizzly Theme v.1.0.0
Canonical: https://duisterbv.nl/

Open Graph

url: https://duisterbv.nl/
title: Home - Jan Duister B.V.
locale: nl_NL
site name: Jan Duister B.V.
description: Home

Technology

CMS: WordPress

Analytics

Google Tag Manager

Cookie consent

Cookiebot

Fonts

Google Fonts

Third-party hosts loaded (3)

fonts.gstatic.com×2
consent.cookiebot.com×1
www.googletagmanager.com×1

Contact

Email

Phone

0416341138

DNS records live

NS

ns0.nl
ns11.net
ns5.be

MX

10 duisterbv-nl.mail.protection.outlook.com

Verified for

Microsoft 365

Email authentication strong

SPF: v=spf1 include:_spf.troublefreehosting.nl include:spf.protection.outlook.com include:_spf.hostnet.nl -all
strict (-all)
DMARC: v=DMARC1; p=reject; fo=0; adkim=r; aspf=r; pct=100; sp=reject
policy: reject (enforced) · sp=reject
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-04-03 to 2026-07-02

Expires in 43 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://duisterbv.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