indexo.dev

f4b.nl

.nl crawl

First seen 2026-06-03 · Last seen 2026-06-04 · ok HTTP/1.1 200 422 ms crawled 2026-06-04

NL · 136.144.205.137 · AS20857 Signet B.V.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Home - F4B
Description
F4B is een allround sparringpartner op administratief, loonadministratief, fiscaal, juridisch en financieel gebied.
Language
nl
Canonical
https://www.f4b.nl/

Open Graph

url
https://www.f4b.nl/
title
F4B
locale
nl-NL
site name
F4B
description
F4B is een allround sparringpartner op administratief, loonadministratief, fiscaal, juridisch en financieel gebied.

Technology

Fonts
  • Font Awesome
  • Google Fonts

Third-party hosts loaded (2)

  • fonts.googleapis.com×1
  • use.fontawesome.com×1

Contact

Email

DNS records live

NS
  • ns0.transip.net
  • ns1.transip.nl
  • ns2.transip.eu
MX
  • 0 f4b-nl.mail.protection.outlook.com

Email authentication partial

SPF
v=spf1 include:spf.protection.outlook.com include:spf.mailjet.com include:spf.fenetre.nl include:smtp.spf.ziggo.nl ip4:89.184.162.81 -all
strict (-all)
DMARC
v=DMARC1; p=none; sp=none; rua=mailto:watchdog3@watchdog.kevlarr.io; adkim=r; aspf=r;
policy: none (monitoring only) · sp=none
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3KcwTAIygxszNEtg7+Bx0oALL/towTJJQJFEZc7xd9TL0Jn0oMiAGBqYh6na9fVS9L2sEHM8Bj4drMS7XUr…
selectors probed

Certificate (current)

R13
from 2026-05-10 to 2026-08-08
Expires in 64 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://www.f4b.nl/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • missing Content Security Policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
permissions-policy
accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=()
x-content-type-options
nosniff
strict-transport-security
max-age=31536000; includeSubDomains; preload

Links to (8)

Linked from (1)