alexanderlehmann.net

.net crawl

First seen 2026-06-01 · Last seen 2026-06-02 · ok HTTP/1.1 200 234 ms crawled 2026-06-01

DE · 85.13.146.155 · AS34788 Neue Medien Muennich GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: alexanderlehmann.net.2019.2020-009

Technology

Server: Apache

Social widgets

YouTube Embed

Third-party hosts loaded (3)

www.youtube-nocookie.com×22
cdn.datatables.net×2
www.youtube.com×1

Social

Registration

Registrar

RegistryGate GmbH

Created

2006-05-19

Expires

2027-05-19 349 days left

Updated

2026-05-20

Name servers

ns5.kasserver.com
ns6.kasserver.com

DNS records live

NS

ns5.kasserver.com
ns6.kasserver.com

MX

10 w006f39e.kasserver.com

Email authentication weak

SPF: v=spf1 a mx include:spf.kasserver.com ~all
softfail (~all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-04-17 to 2026-07-16

Expires in 43 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://alexanderlehmann.net/

present

strict-transport-security

findings

short HSTS max-age
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=600000