indexo.dev

tandem-schools.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-05 · ok HTTP/1.1 200 2777 ms crawled 2026-05-07

DE · 88.198.176.139 · AS24940 Hetzner Online GmbH

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
TANDEM Language Schools
Description
Deutsch und Spanisch lernen in verschiedenen Städten in Deutschland, Spanien und Chile.
Language
de
Generator
TYPO3 CMS
Translations
  • de
  • es

Open Graph

title
TANDEM Language Schools
description
Deutsch und Spanisch lernen in verschiedenen Städten in Deutschland, Spanien und Chile.

Technology

Server
Apache

Social

Registration

Registrar
Hetzner Online GmbH
Created
2001-08-22
Expires
2026-08-22 93 days left
Updated
2025-11-25
Name servers
  • ns.second-ns.com
  • ns1.your-server.de
  • ns3.second-ns.de

DNS records live

NS
  • ns.second-ns.com
  • ns1.your-server.de
  • ns3.second-ns.de
MX
  • 10 www314.your-server.de

Email authentication strong

SPF
v=spf1 a mx -all
strict (-all)
DMARC
v=DMARC1;p=reject;sp=reject;pct=100;adkim=s;aspf=s;
policy: reject (enforced) · sp=reject
DKIM
no key found at common selectors

Certificate (current)

Encryption Everywhere DV TLS CA - G2
from 2025-07-07 to 2026-07-07
Expires in 47 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://tandem-schools.com/

present
  • x-content-type-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff

Links to (4)

Linked from (1)