indexo.dev

utrechtsummerschool.nl

.nl crawl

First seen 2026-05-28 · Last seen 2026-05-30 · ok HTTP/1.1 200 354 ms crawled 2026-05-30

NL · 136.144.187.242 · AS20857 Signet B.V.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Design your perfect summer! | Utrecht Summer School
Language
en
Generator
Drupal 10 (https://www.drupal.org); Commerce 3
Canonical
https://utrechtsummerschool.nl/

Technology

Server
nginx
CMS
Drupal
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×1

Social

DNS records live

NS
  • ns0.transip.net
  • ns1.transip.nl
  • ns2.transip.eu
MX
  • 10 mx.transip.email
Verified for
  • Google

Email authentication weak

SPF
v=spf1 include:servers.mcsv.net include:_spf.transip.email mx a ip4:195.8.208.210 ip4:195.8.208.211 ip4:37.97.145.171 ip4:136.144.187.242 ~all
softfail (~all)
DMARC
not published
DKIM
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
  • s1: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDohWui1uXm3d7Cio4VsoCwwkKBtQlGPU0FxE/Fg4gkNsiZrGGPFoo1brjSNE6rbSdtXkWfDDmmDhO6uJJpf1pfsm…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCzCvwHpvVo9FgjHdWLNeSs11Z4T3MlKDU2wuBwY8XTD7q2w9odirTW2RfNtHI96GA7pDKIhGVLdvI2oL0gmDMl4G…
selectors probed

Certificate (current)

E8
from 2026-05-22 to 2026-08-20
Expires in 76 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://utrechtsummerschool.nl/

present
  • strict-transport-security
  • content-security-policy-report-only
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • missing Content Security Policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
permissions-policy
fullscreen=self, geolocation=self
x-content-type-options
nosniff
strict-transport-security
max-age=31536000; includeSubDomains
content-security-policy-report-only
default-src 'self'; connect-src 'self' *.google-analytics.com https://www.google-analytics.com https://www.googletagmanager.com; frame-src 'self' *.vimeo.com *.vimeocdn.com *.youtube.com; img-src 'self' https://www.google-analytics.com https://www.googletagmanager.com; script-src 'self' *.googletagmanager.com *.google-analytics.com https://cdnjs.cloudflare.com https://www.google.com; script-src-attr 'self'; style-src 'self' 'unsafe-inline' https://cdnjs.cloudflare.com; style-src-attr 'self' 'unsafe-inline'; style-src-elem 'self' https://cdnjs.cloudflare.com; frame-ancestors 'self'

Links to (8)

Linked from (2)