optimal-systems.de

.de crawl dns

First seen 2026-04-12 · Last seen 2026-05-16 · ok HTTP/1.1 200 1497 ms crawled 2026-05-12

BE · 185.76.237.144 · AS34762 Combell NV

Reputation 100/100

Classifying

HTML metadata

Title: OPTIMAL SYSTEMS - Software für Macher
Description: OPTIMAL SYSTEMS bietet mit der Software enaio® eine ECM-Lösung für Unternehmen und Verwaltungen: einfach, sicher, flexibel.
Language: de-DE
Generator: WPML ver:4.9.2 stt:1,3;
Canonical: https://www.optimal-systems.de/

Open Graph

url: https://www.optimal-systems.de/
title: OPTIMAL SYSTEMS - Software für Macher
locale: de_DE
site name: OPTIMAL SYSTEMS
description: OPTIMAL SYSTEMS bietet mit der Software enaio® eine ECM-Lösung für Unternehmen und Verwaltungen: einfach, sicher, flexibel.

Technology

Server: nginx
CMS: WordPress

Analytics

Google Tag Manager

Third-party hosts loaded (1)

www.googletagmanager.com×1

Social

Registration

Updated

2025-07-01

Name servers

ns-1052.awsdns-03.org.
ns-1951.awsdns-51.co.uk.
ns-44.awsdns-05.com.
ns-932.awsdns-52.net.

DNS records live

NS

ns-1052.awsdns-03.org
ns-1951.awsdns-51.co.uk
ns-44.awsdns-05.com
ns-932.awsdns-52.net

MX

100 mail.optimal-systems.de

TXT

Show 7 TXT records

Sendinblue-code:9b1d3422ea4cced23a56732fc28e5bf1
apple-domain-verification=7R275TA5RWsTq8pl
atlassian-domain-verification=wB2uJrqE2EGTOA3Ugqv2pZCl/IS79Lc5GeFM7/VtepaS87uD45e4dISzl6DzNDhh
google-site-verification=0DNmZPk3BVYMtIjbvjW23vK2bGIsOJF8-GB-42StPxU
google-site-verification=lfSotKu2ZHccZihZuCrkM-9GPUd5Z-rIegDoXfp-5ko
MS=CD74DDF7BE948BDF16DE1686AD97440AA6822211
MS=ms28370874

Email authentication strong

SPF

v=spf1 ip4:213.61.224.33 ip4:46.225.1.76 include:spf.imc-hosting.com include:spf.protection.outlook.com include:spf.sendinblue.com include:_spf.salesforce.com include:amazonses.com mx -all

strict (-all)

DMARC

v=DMARC1; p=reject; pct=100; rua=mailto:d@optimal-systems.de; ruf=mailto:d@optimal-systems.de; fo=1

policy: reject (enforced)

DKIM

Show 4 DKIM selectors

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA54+eaWhEKfincwVC+JIR1bW5xCLmlphtikdlXCjQjOnPssJbtYiqc8EQ8O8KT2EcR3crcRyILEnUJU…
mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…
s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvXaeIv0BVc/ESdcMCJ2ujKvKOLqG1RiTVuM3JMwvtXDj4KH1BpP3C7HMSk7d2SrmgiHjANaabnRarhDtuY…
s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoz5Tp9Qw8EtwIjlGZtHCE1qEQ1u8lIpFruQi+juH3/xgxwNQq0HNHFqeLQQfo2Dj18z+OoBNpRQocrYy/H…

selectors probed

Certificate (current)

R13

from 2026-04-05 to 2026-07-04

Expires in 47 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://www.optimal-systems.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=63072000; includeSubDomains; preload