indexo.dev

marcelgrether.ch

.ch crawl

First seen 2026-06-02 · Last seen 2026-06-04 · ok HTTP/1.1 200 191 ms crawled 2026-06-03

CH · 149.126.4.139 · AS47302 cyon AG

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Marcel Grether Training
Language
de-CH
Canonical
https://marcelgrether.ch/
Feeds

Open Graph

url
https://marcelgrether.ch/
title
Marcel Grether Training
locale
de_DE
site name
Marcel Grether Training

Technology

CMS
WordPress
jQuery
3.7.1
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • gmpg.org×1
  • www.googletagmanager.com×1

Social

Contact

Email
Phone

DNS records live

NS
  • ns1.cyon.ch
  • ns2.cyon.ch
MX
  • 0 mail.marcelgrether.ch

Email authentication weak

SPF
v=spf1 ip4:109.91.128.29 -all
strict (-all)
DMARC
not published
DKIM
  • mail: v=DKIM1;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxov7yR6fag+kdpVxshZjhGA2nrKLjuLYQcdqsJEqDPf8HFIHoOKkoRB3OnuX93g6qiYgDVfObPe1oZkEP0IC5l…
selectors probed

Certificate (current)

R13
from 2026-04-25 to 2026-07-24
Expires in 49 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://marcelgrether.ch/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (7)

Linked from (3)