indexo.dev

software-construction.de

.de crawl

First seen 2026-05-30 · Last seen 2026-05-31 · ok HTTP/1.1 200 733 ms crawled 2026-05-31

DE · 217.160.0.118 · AS8560 IONOS SE

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Formelsammlung Software, Weboptimierung und Website Counter
Description
Formelsammlung Software für Mathematik, Physik, Chemie, Biologie und Informatik. Weboptimierung und Counter Service mit Suchmaschinen Auswertung

Technology

Server
Apache
Stack
PHP

Third-party hosts loaded (1)

  • www.agaso.de×1

Registration

Updated
2021-05-20
Name servers
  • ns1047.ui-dns.biz.
  • ns1047.ui-dns.com.
  • ns1047.ui-dns.de.
  • ns1047.ui-dns.org.

DNS records live

NS
  • ns1047.ui-dns.biz
  • ns1047.ui-dns.com
  • ns1047.ui-dns.de
  • ns1047.ui-dns.org
MX
  • 10 mx00.ionos.de
  • 10 mx01.ionos.de

Email authentication partial

SPF
v=spf1 include:_spf-eu.ionos.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2026-04-21 to 2026-11-02
Expires in 153 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://software-construction.de/

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

Links to (3)