indexo.dev

dukdalf-leiden.nl

.nl crawl

First seen 2026-06-04 · Last seen 2026-06-05 · ok HTTP/1.1 200 125 ms crawled 2026-06-05

US · 104.18.211.89 · AS13335 Cloudflare, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
OBS Dukdalf Leiden | Wij geloven we dat ieder kind uniek is.
Description
Op De Dukdalf geloven we dat ieder kind uniek is. Verschillen tussen kinderen zien wij als kansen om van en met elkaar te leren.
Language
nl-NL

Open Graph

url
https://dukdalf-leiden.nl/
title
OBS Dukdalf Leiden | Wij geloven we dat ieder kind uniek is.
description
Op De Dukdalf geloven we dat ieder kind uniek is. Verschillen tussen kinderen zien wij als kansen om van en met elkaar te leren.

Technology

CDN
Cloudflare
CMS
WordPress
jQuery
3.7.1
Analytics
  • Google Tag Manager
Fonts
  • Adobe Fonts
Social widgets
  • Vimeo Embed

Third-party hosts loaded (5)

  • www.googletagmanager.com×2
  • cdn.jsdelivr.net×1
  • cdn.plyr.io×1
  • player.vimeo.com×1
  • use.typekit.net×1

Social

Contact

Email
Phone

Registration

Registrar
Realtime Register
Created
2004-03-24
Updated
2021-04-06
Name servers
  • ns4.firstfind.nl
  • ns5.firstfind.net
  • ns3.firstfind.nl

DNS records live

NS
  • ns3.firstfind.nl
  • ns4.firstfind.nl
  • ns5.firstfind.net
MX
  • 0 dukdalfleiden-nl01i.m-v1.mx.microsoft
TXT
Show 4 TXT records
  • nintex.5e4ea68abb22350caa6e14cb
  • DomainVerification=DV039PFQ44ZBCFWXM3D8U9F41KHGHR2UR0FXZW9BJHK2CA3B0TUIRX5NKJPNWAG5
  • EdDtnO9KIT7R9BZTzxCSdJdzV9onfaJuX8Ypg/HJfz8=
  • LsffH6GBQGWqVsJ94j6YJpimsSFWdWlG
Verified for
  • Google
  • Microsoft 365

Email authentication strong

SPF
v=spf1 include:_spf.yourfilter.nl include:spf.protection.outlook.com include:spf.bouwmeestergroep.nl include:servers.mcsv.net include:_spf.zivver.com -all
strict (-all)
DMARC
v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@prooleiden.nl; ruf=mailto:dmarc@prooleiden.nl; fo=1
policy: reject (enforced)
DKIM
  • default: v=DKIM1; g=*; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4oUzj/ZkrxXv+ha32lmyaaHIbanx6xBetEEqsQkUSw9zZJ0Gr7NwUOZPmAChvY3/RUmU2rHIU…
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9qserjsmV9zjQMPiOCyVLWSlkGEUFk9Oou/PYpJmVtRw6eryJ+ZXeWiC6NKZ3JsPFd00RnwRULiZcw…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA30Qu86ADRLD2hkH8E60KGsKFv/ysN3HAZubWpfGYi8wuionAthVskSrSmaqfifNgfaKgeLCuhQ5pGY…
selectors probed

Certificate (current)

WE1
from 2026-04-07 to 2026-07-06
Expires in 26 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://dukdalf-leiden.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=31536000

Links to (27)

Linked from (20)

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