jrd.cz

.cz crawl

First seen 2026-05-18 · Last seen 2026-05-31 · ok HTTP/1.1 200 19850 ms crawled 2026-05-22

US · 216.150.1.1 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: JRD - Tvoříme pro budoucnost
Description: Navrhujeme zdravé a energeticky úsporné domovy, které zlepšují prostředí kolem nás. Přinášíme čistou energii z obnovitelných zdrojů a chytrá řešení, která mění odpad na nové suroviny.
Language: cs

Technology

CDN: Vercel
CMS: Next.js

Analytics

Google Tag Manager

Third-party hosts loaded (1)

www.googletagmanager.com×1

Social

Registration

Registrar

REG-ACTIVE24

Created

2005-07-12

Expires

2028-07-11 771 days left

Updated

2025-12-20

Name servers

alfa.ns.active24.cz
beta.ns.active24.cz
gama.ns.active24.sk

DNS records live

NS

alfa.ns.active24.cz
beta.ns.active24.cz
gama.ns.active24.sk

MX

0 jrd-cz.mail.protection.outlook.com

TXT

qj3ksb15272n4otpjmeumiofvk
actalis-dcv=dtas7fmvu9hjcbbdei9hf3c73q

Verified for

Airtable
Atlassian
Meta

Email authentication partial

SPF

v=spf1 mx ip4:185.140.245.114 include:spf.mandrillapp.com include:spf.protection.outlook.com include:servers.mcsv.net -all

strict (-all)

DMARC

v=DMARC1; p=none; rua=mailto:mailreport@jrd.cz; ruf=mailto:mailreport@jrd.cz; fo=1;

policy: none (monitoring only)

DKIM

selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDnZexUJO0381RXBvU3EtyTyt/0eBCjg7m7lW3llmnLk1kMdUlSQr8HEIy0IVjw1yc7MuH20Rhouzvt2pZyfG…
s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsvsC10826o7VG+x2Vw7iX+Ii/Q3ili2q+s23RA+Khzr6KC8Q8IDzcA5da6LNsBIaRoPlgB31GGs5DA/Ram…
s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw68FemmT5bsvNmV1NvOxa/sMjpB59Fn5X3KCLHqbZTGPtu1QGGiYilFTZ7i7HOEQS1RzAyLj5HwklQDDnq…

selectors probed

Certificate (current)

R13

from 2026-05-16 to 2026-08-14

Expires in 74 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.jrd.cz/

present

strict-transport-security

findings

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

Header values

strict-transport-security: max-age=63072000