indexo.dev

sinstruct.com

.com crawl

First seen 2026-05-15 · Last seen 2026-05-20 · ok HTTP/1.1 200 830 ms crawled 2026-05-20

DE · 77.37.105.67 · AS31400 firstcolo GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Sinstruct 2014

Open Graph

url
http://www.sinstruct.com/
title
Sinstruct 2014
site name
Sinstruct 2014

Technology

Server
Apache
jQuery
1.10.2 known XSS (<3.5)
Fonts
  • Google Fonts
Social widgets
  • Vimeo Embed

Third-party hosts loaded (3)

  • ajax.googleapis.com×1
  • fonts.googleapis.com×1
  • player.vimeo.com×1

Registration

Registrar
InterNetX GmbH
Created
2012-06-21
Expires
2026-06-21 31 days left
Updated
2026-03-02
Name servers
  • a.ns.ipffm.de
  • b.ns.ipffm.de
  • c.ns.ipffm.de
  • d.ns.ipffm.de

DNS records live

NS
  • a.ns.ipffm.de
  • b.ns.ipffm.de
  • c.ns.ipffm.de
  • d.ns.ipffm.de
MX
  • 10 mail.sinstruct.com

Email authentication weak

SPF
v=spf1 ip4:77.37.105.67 ?all
neutral (?all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-05-01 to 2026-07-30
Expires in 70 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://2014.sinstruct.com/

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

Linked from (1)