indexo.dev

lzone.de

.de crawl

First seen 2026-04-22 · Last seen 2026-05-13 · ok HTTP/1.1 200 3592 ms crawled 2026-05-16

US · 104.21.1.110 · AS13335 Cloudflare, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
LZone
Description
LZone - Cheat Sheets for Sysadmin / DevOps / System Architecture
Language
en-US
Feeds

Technology

CDN
Cloudflare

Third-party hosts loaded (3)

  • github.com×1
  • raw.githubusercontent.com×1
  • webmention.io×1

Registration

Updated
2014-11-25
Name servers
  • coby.ns.cloudflare.com.
  • lara.ns.cloudflare.com.

DNS records live

NS
  • coby.ns.cloudflare.com
  • lara.ns.cloudflare.com
MX
  • 10 mx00.ionos.de
  • 10 mx01.ionos.de

Email authentication weak

SPF
v=spf1 include:_spf-eu.ionos.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-14 to 2026-07-13
Expires in 55 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://lzone.de/

present
  • strict-transport-security
  • x-content-type-options
findings
  • missing Content Security Policy
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff
strict-transport-security
max-age=15552000

Linked from (2)