indexo.dev

nationaalwatersportdiploma.nl

.nl crawl

First seen 2026-06-04 · Last seen 2026-06-04 · ok HTTP/1.1 200 1101 ms crawled 2026-06-04

US · 216.150.1.193 · AS16509 Amazon.com, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Nationaal Watersportdiploma | Veiligheid, kwaliteit & plezier op het water.
Description
Dé standaard voor veiligheid, kwaliteit en plezier op het water. Diplomalijn erkend door het Watersportverbond, met hoge kwaliteitseisen aan vaarlocaties.
Language
nl
Canonical
https://www.nationaalwatersportdiploma.nl

Open Graph

url
https://www.nationaalwatersportdiploma.nl
title
Nationaal Watersportdiploma | Veiligheid, kwaliteit & plezier op het water.
locale
nl_NL
site name
Nationaal Watersportdiploma
description
Dé standaard voor veiligheid, kwaliteit en plezier op het water. Diplomalijn erkend door het Watersportverbond, met hoge kwaliteitseisen aan vaarlocaties.

Technology

CDN
Vercel
CMS
Next.js

Social

DNS records live

NS
  • ns1.vercel-dns.com
  • ns2.vercel-dns.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
Verified for
  • Google

Email authentication weak

SPF
v=spf1 include:_spf.google.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-26 to 2026-07-25
Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://www.nationaalwatersportdiploma.nl/

present
  • strict-transport-security
  • content-security-policy
findings
  • CSP allows unsafe inline scripts/styles
  • CSP uses wildcard sources
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
content-security-policy
default-src 'self'; script-src 'self' 'unsafe-eval' 'unsafe-inline' blob: https://cdn.usefathom.com https://maps.googleapis.com https://vercel.live https://www.gstatic.com https://www.instagram.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com https://vercel.live; img-src 'self' blob: data: https://*.mux.com https://*.googleapis.com https://*.gstatic.com https://vercel.live https://vercel.com https://cdn.usefathom.com https://service.nwd.nl https://*.cdninstagram.com https://*.fbcdn.net 127.0.0.1:* localhost:*; font-src 'self' data: https://fonts.googleapis.com https://fonts.gstatic.com https://vercel.live https://assets.vercel.com; connect-src 'self' https://cdn.usefathom.com https://*.fastly.mux.com https://*.mux.com https://*.googleapis.com https://*.gstatic.com wss://ws-us3.pusher.com https://vercel.live https://service.nwd.nl https://www.instagram.com https://*.instagram.com;
strict-transport-security
max-age=63072000

Links to (5)

Linked from (4)