indexo.dev

jonasleifert.de

.de crawl

First seen 2026-05-28 · Last seen 2026-05-28 · ok HTTP/1.1 200 417 ms crawled 2026-05-31

DE · 92.205.174.82 · AS21499 Host Europe GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Jonas Leifert

Technology

Server
Apache

Registration

Updated
2020-12-17
Name servers
  • ns07.domaincontrol.com.
  • ns08.domaincontrol.com.

DNS records live

NS
  • ns07.domaincontrol.com
  • ns08.domaincontrol.com
MX
  • 0 jonasleifert-de.mail.protection.outlook.com
TXT
  • NETORGFT19148025.onmicrosoft.com

Email authentication weak

SPF
v=spf1 include:secureserver.net -all
strict (-all)
DMARC
not published
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsKAh8zBDaQ19WFI4pyb+7eVvbWmBsgHBc9EKxUqn7L4NsLFcp7MfjEEwHHPHIf2kSdKNW4Y+iCOoiE…
selectors probed

Certificate (current)

R12
from 2026-04-13 to 2026-07-12
Expires in 41 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://jonasleifert.de/

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

Linked from (1)