indexo.dev

mathebattle.de

.de crawl

First seen 2026-04-13 · Last seen 2026-05-07 · ok HTTP/1.1 200 552 ms crawled 2026-05-07

DE · 193.197.147.82 · AS553 Universitaet Stuttgart

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Mathebattle Users
Language
de

Technology

Server
openresty

Registration

Updated
2009-03-09
Name servers
  • docks03.rzone.de.
  • shades13.rzone.de.

DNS records live

NS
  • docks03.rzone.de
  • shades13.rzone.de
MX
  • 20 mail.belwue.de

Email authentication strong

SPF
v=spf1 include:_spf.belwue.de ~all
softfail (~all)
DMARC
v=DMARC1;p=none;rua=mailto:peter.siessegger@zsl-rstue.de;adkim=r;aspf=r;
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

E8
from 2026-04-30 to 2026-07-29
Expires in 71 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://mathebattle.de/users/login

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=63072000; preload

Linked from (1)