oksystem.com

HTML metadata

Title: OKsystem | Vaše první volba pro vývoj a inovace | OKsystem
Description: Česká společnost nabízející komplexní IT služby a softwarová řešení na míru, již od roku 1990.
Language: cs
Canonical: https://www.oksystem.cz/cs

Open Graph

title: OKsystem | Vaše první volba pro vývoj a inovace | OKsystem
locale: cs_CZ
description: Česká společnost nabízející komplexní IT služby a softwarová řešení na míru, již od roku 1990.

Technology

Server: OKsystem
Stack: PHP

Analytics

Google Tag Manager

Third-party hosts loaded (2)

www.googletagmanager.com×1
www.oksystem.cz×1

Social

Registration

Registrar

Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA

Created

2004-12-11

Expires

2026-12-11 193 days left

Updated

2025-10-31

Name servers

ns.oksystem.cz
ns2.oksystem.cz
ns3.oksystem.cz

DNS records live

NS

ns.oksystem.cz
ns2.oksystem.cz
ns3.oksystem.cz

MX

10 mail.oksystem.cz

Verified for

Google
Microsoft 365

Email authentication partial

SPF: v=spf1 ip4:193.222.130.1 mx include:spf.protection.outlook.com -all
strict (-all)
DMARC: v=DMARC1; p=none; rua=mailto:dmarc-reports@oksystem.com; ruf=mailto:dmarc-reports@oksystem.com
policy: none (monitoring only)
DKIM: no key found at common selectors

Certificate (current)

E7

from 2026-05-26 to 2026-08-24

Expires in 84 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 100/100 Checked live page: https://www.oksystem.com/cs

present

strict-transport-security
content-security-policy
x-frame-options
x-content-type-options
referrer-policy
permissions-policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-frame-options: SAMEORIGIN
permissions-policy: accelerometer=(self), ambient-light-sensor=(self), autoplay=(self), battery=(self), camera=(self), cross-origin-isolated=(self), display-capture=(self), document-domain=(self), encrypted-media=(self), execution-while-not-rendered=(self), execution-while-out-of-viewport=(self), fullscreen=(self), geolocation=(self), gyroscope=(self), keyboard-map=(self), magnetometer=(self), microphone=(self), midi=(self), navigation-override=(self), payment=(self), picture-in-picture=(self), publickey-credentials-get=(self), screen-wake-lock=(self), sync-xhr=(self), usb=(self), web-share=(self), xr-spatial-tracking=(self), clipboard-read=(self), clipboard-write=(self), gamepad=(self), speaker-selection=(self), conversion-measurement=(self), focus-without-user-activation=(self), hid=(self), idle-detection=(self), interest-cohort=(self), serial=(self), sync-script=(self), trust-token-redemption=(self), window-placement=(self), vertical-scroll=(self)
x-content-type-options: nosniff
content-security-policy: frame-ancestor 'none'; upgrade-insecure-requests;
strict-transport-security: max-age=31536000; includeSubDomains