tennismachtschule.de

.de crawl

First seen 2026-04-14 · Last seen 2026-05-08 · ok HTTP/1.1 200 1247 ms crawled 2026-05-08

US · 188.114.97.3 · AS13335 Cloudflare, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title: Tennis macht Schule
Description: Tennis in der Schule? Das wollen bett1.de und Ex-Tennisprofi Markus Zoecke in Berlin und Brandenburg ermöglichen ➔ hier für Ihre Schule anfragen ✔
Language: de

Technology

CDN: Cloudflare

Cookie consent

Cookiebot

Third-party hosts loaded (1)

consent.cookiebot.com×1

Registration

Updated

2021-05-05

Name servers

toby.ns.cloudflare.com.
vida.ns.cloudflare.com.

DNS records live

NS

toby.ns.cloudflare.com
vida.ns.cloudflare.com

MX

5 tennismachtschule-de.mail.protection.outlook.com

TXT

mandrill_verify.Bx_IrwgDdKPL_aQpFGq03A

Verified for

Google
Microsoft 365

Email authentication partial

SPF

v=spf1 mx a ip4:90.187.16.73 ip4:213.138.44.165 include:_spf.kundenserver.de include:spf.mandrillapp.com include:spf.protection.outlook.com -all

strict (-all)

DMARC

v=DMARC1; p=none; rua=mailto:report.dmarc@tennismachtschule.de; ruf=mailto:report.dmarc@tennismachtschule.de; adkim=s; aspf=s

policy: none (monitoring only)

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv4saQ/1U3DgCVDZKYRiwEyYA9Q4t/Vl78P2mbvFuQLIeFbKnOrgV0lZdWHFwRJP94yycHzluuCHj2/…
dkim: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDA2EAEJgbRchNGsrkR9Fr3JUR9AFAasCtXwtSJ5J3vLgrhH+8NmA7DvoW5Q1BUV6+25owhXQUfjUgXx/K+wR…

selectors probed

Certificate (current)

WE1

from 2026-04-18 to 2026-07-17

Expires in 58 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.tennismachtschule.de/

findings

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