indexo.dev

gdch.app

.app crawl

First seen 2026-04-16 · Last seen 2026-05-08 · ok HTTP/1.1 200 989 ms crawled 2026-05-11

US · 216.150.1.1 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
Start | GDCh.app
Description
Wir entdecken Chemie für eine bessere Welt: Informationen, Events und Kontakte aus der Chemie – Wissenschaft und Wirtschaft hautnah erleben.
Language
de
Canonical
https://gdch.app

Open Graph

url
https://gdch.app
title
Starte die GDCh.app
site name
GDCh.app
description
Wir entdecken Chemie für eine bessere Welt: Informationen, Events und Kontakte aus der Chemie – Wissenschaft und Wirtschaft hautnah erleben.

Technology

CDN
Vercel
CMS
Next.js

DNS records live

NS
  • ns1.hosting.de
  • ns2.hosting.de
  • ns3.hosting.de
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
  • Sendinblue-code:285a8afac68e80c06be5672efe65d963
  • google-site-verification=9MnhA32tPW41Lt7vpLjEHevzkoeI19T1dnAQhYXtIuQ

Email authentication strong

SPF
v=spf1 include:_spf.google.com include:spf.sendinblue.com ~all
softfail (~all)
DMARC
v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc@4yzpnqhq.uriports.com,mailto:85acfa61@in.mailhardener.com; ruf=mailto:dmarc@4yzpnqhq.uriports.com,mailto:m.braeutigam@gdch.app; fo=1
policy: reject (enforced) · sp=reject
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAttTzPKvu+ewgwMZHpkL5IKqZ6kageXJigPAgD3jG38PAK1pySAEdR4+lLGoBJNTxPIKNYLNnzLQVw5…
  • mail: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+l…
selectors probed

Certificate (current)

R12
from 2026-04-23 to 2026-07-22
Expires in 64 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://gdch.app/

present
  • strict-transport-security
  • content-security-policy-report-only
  • permissions-policy
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
Header values
permissions-policy
geolocation=(), camera=(), fullscreen=*, payment=self
strict-transport-security
max-age=63072000; includeSubDomains; preload;
content-security-policy-report-only
default-src 'self' https://analytics.gdch.app https://www.youtube-nocookie.com https://podcast.jcf.io https://cdn.podlove.org https://jcf.io https://feedback.gdch.app; font-src 'self' https://cdn.podlove.org; img-src 'self' https://media.graphcms.com https://media.graphassets.com https://podcast.jcf.io https://cdn.podlove.org https://eu.ui-avatars.com https://jcf.io data:; script-src 'self' https://cdn.nolt.io https://analytics.gdch.app https://cdn.podlove.org; style-src 'self' 'unsafe-inline' https://cdn.podlove.org; object-src 'none'; report-uri https://4yzpnqhq.uriports.com/reports/report https://gdch.report-uri.com/r/d/csp/reportOnly; report-to default

Links to (2)

Linked from (1)