jrmetal.cz

.cz dns

First seen 2026-06-01 · Last seen 2026-06-01 · ok HTTP/1.1 200 349 ms crawled 2026-06-01

CZ · 91.222.52.72 · AS198346 NETFORMS s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

Technology

Server: nginx

DNS records live

NS

hostbase.netforms.cz
ns2.netforms.cz
secondary.blue4.cz

MX

0 posta.jrmetal.cz
10 secondary.blue4.cz

Email authentication weak

SPF: v=spf1 a mx ?all
neutral (?all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R13

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

Expires in 70 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://jrmetal.cz/

findings

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