indexo.dev

show2instruct.com

.com crawl

First seen 2026-04-22 · Last seen 2026-05-13 · ok HTTP/1.1 200 919 ms crawled 2026-05-16

US · 104.21.22.66 · AS13335 Cloudflare, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Show2Instruct
Language
de

Technology

CDN
Cloudflare

Registration

Registrar
united-domains GmbH
Created
2025-02-17
Expires
2027-02-17 273 days left
Updated
2026-04-13
Name servers
  • ivan.ns.cloudflare.com
  • kiki.ns.cloudflare.com

DNS records live

NS
  • ivan.ns.cloudflare.com
  • kiki.ns.cloudflare.com
MX
  • 10 mx00.udag.de
  • 20 mx01.udag.de

Email authentication weak

SPF
v=spf1 include:_smtp.udag.de ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-07 to 2026-07-06
Expires in 48 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://show2instruct.com/

present
  • x-content-type-options
  • referrer-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing Permissions Policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-content-type-options
nosniff

Links to (4)

Linked from (1)