oom.nl

.nl crawl

First seen 2026-05-27 · Last seen 2026-06-01 · ok HTTP/1.1 200 565 ms crawled 2026-05-30

NL · 77.242.114.89 · AS35332 DataWeb B.V.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title: OOM - Opleiding Ontwikkeling Metaalbewerking | Oom.nl
Description: OOM – Opleiden, ontwikkelen en doorgroeien in de metaalbewerking. Ontdek gratis trainingen, vergoedingen, oZone-online leren en ondersteuning voor vakmensen én bedrijven. Samen versterken we vakmanschap en groei in de sector.
Language: en

Technology

Server: Microsoft-IIS
jQuery: 3.7.1

Fonts

Google Fonts

Social widgets

Vimeo Embed

Third-party hosts loaded (8)

code.jquery.com×2
fonts.googleapis.com×2
player.vimeo.com×2
cdn.jsdelivr.net×1
chatwidget-prod.web.app×1
fonts.gstatic.com×1
kit.fontawesome.com×1
www.google.com×1

Social

Contact

Phone

0172 - 521 500

DNS records live

NS

ns1.dn-s.nl
ns2.dn-s.nl
ns3.dn-s.nl
ns4.dn-s.nl

MX

80 d339261.a.ess.de.barracudanetworks.com
85 d339261.b.ess.de.barracudanetworks.com

TXT

duo_sso_verification=08KJ5CLUz4tbbsvnjfoui3RbnmVsbM5qFViLFypATjW2nrVYMHHthf9o6C55Q4EW
mIPXo0tIn3k9rrxyIlYQkrn5m9txNwbMuQcLo+t72UfRzLVc4GyZ3Ni8RDlWZkMjDA5qeB/MuREaVcXIZ/Bivg==

Verified for

Google
Microsoft

Email authentication partial

SPF: v=spf1 mx a ip4:77.242.114.83/32 a:mf1.oom.nl include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:spf.ess.de.barracudanetworks.com -all
strict (-all)
DMARC: v=DMARC1; p=none; rua=mailto:postmaster@oom.nl
policy: none (monitoring only)
DKIM: no key found at common selectors

Certificate (current)

DigiCert Global G2 TLS RSA SHA256 2020 CA1

from 2025-05-24 to 2026-06-23

Expires in 20 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.oom.nl/

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy