rsj.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-13 · ok HTTP/1.1 200 1021 ms crawled 2026-05-09

CZ · 88.208.121.76 · AS29208 Quantcom, a.s.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Finanční skupina 21. století | RSJ
Description: Skupina RSJ obchoduje na derivátových burzách a spravuje široké portfolio investic. Působí na trzích s finančními deriváty v Londýně, Chicagu, New Yorku, Frankfurtu a Tokiu. Investuje do výstavby bytových i kancelářských budov, akvizic výnosových nemovito
Language: cs

Technology

Server: Apache

Analytics

Google Tag Manager

Third-party hosts loaded (3)

oxit.cz×2
www.googletagmanager.com×2
unpkg.com×1

Registration

Registrar

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

Created

1998-09-23

Expires

2034-09-22 3048 days left

Updated

2025-08-26

Name servers

ns1.websupport.cz
ns2.websupport.cz
ns3.websupport.eu

DNS records live

NS

ns1.websupport.cz
ns2.websupport.cz
ns3.websupport.eu

MX

0 rsj-com.mail.protection.outlook.com

TXT

MS=D83C4EACC4B7CCCE5B231D284C127F81F749F1B3
MS=ms47699795
MS=ms91352397

Email authentication strong

SPF

v=spf1 mx a:mail.rsj.cz a:mail2.rsj.cz ip4:195.122.200.232/32 include:spf.protection.outlook.com -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:hostmaster@rsj.com

policy: quarantine

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqQw4aJCXtKnBXwh91zX4b+11MUPtkprNbverAqZXrsb8Wnqq48+jxQ2IfMdgxQEMNAYMuUvA+UwucN…

selectors probed

Certificate (current)

from 2026-04-16 to 2026-07-15

Expires in 57 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.rsj.com/

present

x-frame-options

findings

missing HSTS
missing Content Security Policy
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: SAMEORIGIN

Links to (1)

nadacersj.com×2