leideninternationalcentre.nl

.nl crawl

First seen 2026-05-27 · Last seen 2026-05-30 · ok HTTP/1.1 200 1281 ms crawled 2026-05-30

IE · 79.125.126.131 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title

Leiden International Centre | Leiden International Centre

Description

Leiden International Centre offers government services, information and provides a network for internationals living or working in the Leiden region.

Language

Translations

Open Graph

title: Leiden International Centre
site name: Visit Leiden
description: Welcome to Leiden! Leiden International Centre gives a warm welcome to internationals and supports them during their stay in the Leiden region.

Technology

Analytics

Google Tag Manager

Fonts

Adobe Fonts

Third-party hosts loaded (3)

assets.plaece.nl×24
use.typekit.net×1
www.googletagmanager.com×1

Social

Contact

Email

helpdesk@leideninternationalcentre.nl

DNS records live

NS

ns1.thednscompany.com
ns2.thednscompany.com
ns3.thednscompany.com

MX

0 leideninternationalcentre-nl.mail.protection.outlook.com

Verified for

Microsoft 365

Email authentication partial

SPF: v=spf1 include:spf.protection.outlook.com include:mailplus.nl ip4:217.100.41.194 -all
strict (-all)
DMARC: v=DMARC1; p=none;
policy: none (monitoring only)
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-04-21 to 2026-07-20

Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present

strict-transport-security
content-security-policy
x-content-type-options
referrer-policy
permissions-policy

findings

CSP allows unsafe inline scripts/styles
CSP uses wildcard sources
missing frame protection

Header values

referrer-policy: strict-origin-when-cross-origin
permissions-policy: geolocation=*, autoplay=*, accelerometer=(), camera=(), microphone=(), usb=(), gyroscope=(), magnetometer=()
x-content-type-options: nosniff
content-security-policy: default-src https: 'unsafe-inline' 'unsafe-eval' data: blob:; block-all-mixed-content; connect-src * blob:; font-src https:; frame-ancestors 'self' https://preview.plaece.nl; frame-src *; img-src https: data: blob:; media-src https: data: blob:; script-src https: 'unsafe-inline' 'unsafe-eval' blob:; style-src https: 'unsafe-inline'; report-uri /nelmio/csp/report; worker-src https: blob:
strict-transport-security: max-age=315360000