tonzon.nl

.nl crawl

First seen 2026-05-21 · Last seen 2026-05-30 · ok HTTP/1.1 200 829 ms crawled 2026-05-27

NL · 93.119.0.101 · AS20857 Signet B.V.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Welkom!- Innovatieve en duurzame isolatie oplossingen - Tonzon
Description: Ervaar meer wooncomfort en bespaar geld met de isolatie oplossingen van TONZON. ✓ Hoge isolatiewaarde ✓ Energie besparen ✓ Vrijblijvende offerte.
Language: nl
Canonical: https://tonzon.nl/

Open Graph

url: https://tonzon.nl/
title: Welkom! - Innovatieve en duurzame isolatie oplossingen
locale: nl_NL
description: Ervaar meer wooncomfort en bespaar geld met de isolatie oplossingen van TONZON. ✓ Hoge isolatiewaarde ✓ Energie besparen ✓ Vrijblijvende offerte.

Technology

Server: Apache
CMS: WordPress
jQuery: 3.5.1

Third-party hosts loaded (3)

static.elfsight.com×1
tonzon-cms.webmark-solutions.nl×1
track.adform.net×1

Social

DNS records live

NS

ns01-5.windonet.nl
ns02.windonet.nl
ns03.windonet.com

MX

0 tonzon-nl.mail.protection.outlook.com
10 filter.spamcheck.eu
20 filter20.spamcheck.eu

Verified for

Google
Microsoft 365

Email authentication partial

SPF

v=spf1 a mx include:spf.protection.outlook.com a:smtp.windonet.nl a:smtp.brightaccess.nl ip4:80.89.233.0/26 ip4:195.35.231.0/24 ip4:185.41.139.147 ip4:62.216.2.62 ip4:138.201.198.26 ip4:93.119.0.101 ip6:2a01:7c8:bb0a:5a::/64 include:mailgun.org ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:dmarc@smtpeter.com

policy: none (monitoring only)

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsOA8I9d/c+0h8McoEBD68UOjFp17vyxv6rwzWYNP60lPFdNQppEKl99O4S4i4dqsPwSfDQcz4THV9Z…
s1: k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxZ5EnEb77rsmK3JNnjK2l3w6AIRY0rmkpTNev24Xfcob9n27VvmRoc0X6GkCMlaNGTL3ZL5Z0YJ2cUkafNUQ+sj…

selectors probed

Certificate (current)

R12

from 2026-05-22 to 2026-08-20

Expires in 80 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://tonzon.nl/

present

strict-transport-security
x-content-type-options

findings

short HSTS max-age
missing Content Security Policy
missing frame protection
missing Referrer Policy
missing Permissions Policy

Header values

x-content-type-options: nosniff
strict-transport-security: max-age=300