indexo.dev

sdn.nl

.nl crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 1544 ms crawled 2026-06-01

NL · 146.185.149.6 · AS14061 DigitalOcean, LLC

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Home - SDN - Software Development Network
Description
SDN, Software Development Network, The platform in the Netherlands for and by IT .Net developers, architecten en experts active within the Microsoft & .Net ecosystem.
Language
en-US
Generator
WordPress 6.9.4
Canonical
https://sdn.nl/
Feeds

Open Graph

url
https://sdn.nl/
title
Home - SDN - Software Development Network
locale
en_US
site name
SDN - Software Development Network
description
SDN, Software Development Network, The platform in the Netherlands for and by IT .Net developers, architecten en experts active within the Microsoft & .Net ecosystem.

Technology

Server
nginx
CMS
WordPress 6.9.4
PHP
8.2.31 security-only
Analytics
  • Google Tag Manager

Third-party hosts loaded (4)

  • static.devitjobs.nl×5
  • cdn-cookieyes.com×1
  • nljug.org×1
  • www.googletagmanager.com×1

Social

Contact

Email
Phone

DNS records live

NS
  • ns-1445.awsdns-52.org
  • ns-1902.awsdns-45.co.uk
  • ns-24.awsdns-03.com
  • ns-986.awsdns-59.net
MX
  • 0 sdn-nl.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

E8
from 2026-04-30 to 2026-07-29
Expires in 54 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (13)

Linked from (2)