indexo.dev

rotterdamleert.nl

.nl crawl

First seen 2026-06-02 · Last seen 2026-06-02 · ok HTTP/1.1 200 804 ms crawled 2026-06-03

DE · 136.243.83.234 · AS24940 Hetzner Online GmbH

Reputation 69/100 listed in spam blocklist dmarc monitor-only

Classifying

HTML metadata

Title
Rotterdam Leert – Bij RotterdamLeert staat educatie centraal
Language
nl-NL
Generator
WordPress 7.0
Canonical
https://rotterdamleert.nl/
Feeds

Technology

Server
LiteSpeed
CMS
WordPress 7.0
PHP
8.1.34 end of life
jQuery
3.7.1
Fonts
  • Google Fonts

Third-party hosts loaded (2)

  • fonts.googleapis.com×5
  • gmpg.org×1

Social

Contact

Email
Phone

DNS records live

NS
  • ns-01-eu.klikonline.nl
  • ns-02-eu.klikonline.nl
  • ns-03-eu.klikonline.nl
  • ns-04-eu.klikonline.nl
MX
  • 0 mail.rotterdamleert.nl

Email authentication partial

SPF
v=spf1 a mx include:_spf.mailspf.eu ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-09 to 2026-07-08
Expires in 34 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 100/100 Checked live page: https://rotterdamleert.nl/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
  • cross-origin-opener-policy
  • cross-origin-embedder-policy
  • cross-origin-resource-policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
permissions-policy
accelerometer=(), autoplay=(), camera=(), cross-origin-isolated=(), display-capture=(self), encrypted-media=(), fullscreen=*, geolocation=(self), gyroscope=(), keyboard-map=(), magnetometer=(), microphone=(), midi=(), payment=*, picture-in-picture=*, publickey-credentials-get=(), screen-wake-lock=(), sync-xhr=*, usb=(), xr-spatial-tracking=(), gamepad=(), serial=(), private-state-token-redemption=(self "https://www.google.com" "https://www.gstatic.com" "https://recaptcha.net" "https://challenges.cloudflare.com" "https://hcaptcha.com"),private-state-token-issuance=(self "https://www.google.com" "https://www.gstatic.com" "https://recaptcha.net" "https://challenges.cloudflare.com" "https://hcaptcha.com")
x-content-type-options
nosniff
content-security-policy
upgrade-insecure-requests;
strict-transport-security
max-age=63072000
cross-origin-opener-policy
unsafe-none
cross-origin-embedder-policy
unsafe-none; report-to='default'
cross-origin-resource-policy
cross-origin

Links to (1)

Linked from (1)