indexo.dev

semantic-treehouse.nl

.nl crawl

First seen 2026-05-16 · Last seen 2026-05-20 · ok HTTP/1.1 200 2515 ms crawled 2026-05-20

NL · 34.90.63.86 · AS396982 Google LLC

Reputation 94/100 dmarc monitor-only

sector tech type docs

HTML metadata

Title
Semantic Treehouse
Language
en
Generator
Docusaurus v3.5.2
Canonical
https://www.semantic-treehouse.nl/
Translations
  • en
Feeds

Open Graph

url
https://www.semantic-treehouse.nl/
title
Semantic Treehouse
locale
en

Technology

Server
nginx
Analytics
  • Google Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • www.googletagmanager.com×2
  • www.google-analytics.com×1

Registration

Registrar
team.blue nl B.V.
Created
2018-02-20
Updated
2023-09-04
Name servers
  • ns0.transip.net
  • ns2.transip.eu
  • ns1.transip.nl

DNS records live

NS
  • ns0.transip.net
  • ns1.transip.nl
  • ns2.transip.eu
MX
  • 10 semantic-treehouse.nl
Verified for
  • Google

Email authentication partial

SPF
v=spf1 include:spf.flowmailer.net ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:dmarc@inbound.flowmailer.net; ruf=mailto:dmarc@inbound.flowmailer.net; fo=1
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-05-06 to 2026-08-04
Expires in 75 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 65/100 Checked live page: https://www.semantic-treehouse.nl/

present
  • content-security-policy
  • x-frame-options
  • x-content-type-options
findings
  • missing HSTS
  • CSP allows unsafe inline scripts/styles
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
DENY
x-content-type-options
nosniff
content-security-policy
script-src https://www.googletagmanager.com 'self' 'unsafe-inline' 'unsafe-eval' blob:; object-src 'none'; media-src 'self'; style-src 'unsafe-inline' 'self'; font-src data: 'self'; connect-src https:; img-src https: data:; frame-ancestors 'none';

Linked from (1)