indexo.dev

codeforce.nl

.nl dns

First seen 2026-05-21 · Last seen 2026-06-05 · ok HTTP/1.1 200 303 ms crawled 2026-05-27

NL · 77.73.225.131 · AS41960 Nextpertise B.V.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Home | CodeForce
Description
CodeForce ontwikkelt en beheert digitale oplossingen voor bedrijven en overheden: maatwerkapplicaties, koppelingen en automatisering.
Language
nl
Canonical
https://codeforce.nl
Translations
  • nl

Open Graph

url
https://codeforce.nl
title
Home | CodeForce
locale
nl_NL
site name
CodeForce
description
CodeForce ontwikkelt en beheert digitale oplossingen voor bedrijven en overheden: maatwerkapplicaties, koppelingen en automatisering.

Technology

Server
nginx
PHP
8.4.18
Fonts
  • Google Fonts

Third-party hosts loaded (2)

  • fonts.googleapis.com×3
  • fonts.gstatic.com×1

Contact

Email
Phone

DNS records live

NS
  • ns1.codeforce.nl
  • ns2.codeforce.nl
MX
  • 0 codeforce-nl.mail.protection.outlook.com
TXT
  • atlassian-sending-domain-verification=77107ac3-c195-4fa4-a6d0-265c457e2c7d
Verified for
  • Atlassian
  • Google
  • Microsoft 365

Email authentication partial

SPF
v=spf1 include:_spf.atlassian.net include:_spf.codeforce.nl include:spf.protection.outlook.com include:mail.registrar.eu -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:developer@codeforce.nl; ruf=mailto:developer@codeforce.nl
policy: none (monitoring only)
DKIM
Show 4 DKIM selectors
  • default: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDw1Io7FLJHX7nQ7WmYa0nNjITCz5uKN1R2Wyuhv4wi3r0zGmdF31S7N+/77fHUgLUcQ2maya2Q3E+aEeKJFoe4dJsLyKw…
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC1UULCy1AXSbH/lpIptlor7SGU0nXgslRzd4to40A+Cw2wvm89v7t8wpwSFw+00Xiiznrva5TnI3s7wqHogl…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw1gU64wM331J2x42nJ5l0VWV9mz2yyXOQwlgqvQ5eOkANWTV43m7GSCUU9MBBKHDpm6+8o9nY+5vm506tZ…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8tvSmzHnj/KkHIVAuonmai05ZFiat3Js8GETYTxg0Pfb3773i53A56TIx89vrodwSgVPFTQFqQ1Tg/KOpQM6YlC…
selectors probed

Certificate (current)

E8
from 2026-05-13 to 2026-08-11
Expires in 66 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://codeforce.nl/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=63072000