indexo.dev

return-to-activity.de

.de crawl

First seen 2026-05-30 · Last seen 2026-05-31 · ok HTTP/1.1 200 529 ms crawled 2026-05-31

DE · 167.235.173.22 · AS24940 Hetzner Online GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Return to Activity - Algorithmus
Language
de
Canonical
https://www.return-to-activity.de/de

Technology

Server
nginx
jQuery
1.11.3 known XSS (<3.5)

Registration

Updated
2024-01-25
Name servers
  • ns1.timmehosting.de.
  • ns2.timmehosting.de.
  • ns3.timmehosting.de.

DNS records live

NS
  • ns1.timmehosting.de
  • ns2.timmehosting.de
  • ns3.timmehosting.de
MX
  • 10 mail.return-to-activity.de

Email authentication weak

SPF
v=spf1 ip4:167.235.173.22 a mx ~all
softfail (~all)
DMARC
not published
DKIM
  • default: v=DKIM1; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCzLAhy2LpuAvl8eEB7NXAok/apc8xyxJWRNzgRJzU4QRJN/8xfwOVrxpwujFo5nsTn2W7k4rK49qDUupXmPDK7…
selectors probed

Certificate (current)

R13
from 2026-04-05 to 2026-07-04
Expires in 28 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.return-to-activity.de/de

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

Links to (2)

Linked from (1)