sixsigma.nl

.nl crawl

First seen 2026-06-04 · Last seen 2026-06-04 · ok HTTP/1.1 200 375 ms crawled 2026-06-04

NL · 37.34.63.57 · AS20857 Signet B.V.

Reputation 94/100 dmarc partial coverage

Classifying

HTML metadata

Title: Alles over Lean en Lean Six Sigma op 1 plek!
Description: SixSigma.nl is hét platform voor Lean en Lean Six Sigma. Van een uitgebreid kenniscentrum tot alle opleidingen en workshops!
Language: nl-NL
Generator: WP Rocket 3.21.3
Canonical: https://www.sixsigma.nl/

Open Graph

url: https://www.sixsigma.nl/
title: Alles over Lean en Lean Six Sigma op 1 plek!
locale: nl_NL
site name: sixsigma.nl - Powered by UPD
description: SixSigma.nl is hét platform voor Lean en Lean Six Sigma. Van een uitgebreid kenniscentrum tot alle opleidingen en workshops!

Technology

Server: nginx
CMS: WordPress

Third-party hosts loaded (3)

www.upd.nl×41
cdnjs.cloudflare.com×4
api.dmchamp.com×2

DNS records live

NS

ns1.plus-delta.nl
ns2.plus-delta.nl

MX

10 mail.sixsigma.nl

Verified for

Google

Email authentication strong

SPF: v=spf1 a mx ip4:37.34.63.57 ip6:2a01:7c8:aaaf:1e:5054:ff:fece:eab6 ~all
softfail (~all)
DMARC: v=DMARC1; p=quarantine; pct=20; rua=mailto:spam-reports@sixsigma.nl; sp=reject; aspf=r;
policy: quarantine · pct=20 · sp=reject
DKIM: no key found at common selectors

Certificate (current)

E7

from 2026-05-15 to 2026-08-13

Expires in 70 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 75/100 Checked live page: https://www.sixsigma.nl/

present

strict-transport-security
x-frame-options
x-content-type-options
referrer-policy

findings

missing Content Security Policy
missing Permissions Policy

Header values

referrer-policy: no-referrer-when-downgrade
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
strict-transport-security: max-age=63072000

Links to (3)

Linked from (1)

upd.nl×1