indexo.dev

mathematik.ch

.ch crawl

First seen 2026-06-03 · Last seen 2026-06-03 · ok HTTP/1.1 200 916 ms crawled 2026-06-03

US · 185.199.109.153 · AS54113 Fastly, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Mathematik am Gymnasium bzw. an der Kantonsschule
Description
Mathematik am Gymnasium bzw. an der Kantonsschule, Bernhard Berchtold, eh. Lehrer für Mathematik und Anwendungen der Mathematik, Schweiz
Language
de

Technology

CDN
Fastly
Server
GitHub.com

DNS records live

NS
  • dan.ns.cloudflare.com
  • tia.ns.cloudflare.com
MX
  • 5 mta-gw.infomaniak.ch
Verified for
  • Google

Email authentication strong

SPF
v=spf1 include:spf.infomaniak.ch -all
strict (-all)
DMARC
v=DMARC1;p=reject;fo=1; rua=mailto:berchtold@mathematik.ch
policy: reject (enforced)
DKIM
no key found at common selectors

Certificate (current)

YR2
from 2026-05-29 to 2026-08-27
Expires in 83 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Linked from (1)