lumenservisni.cz

.cz crawl

First seen 2026-05-27 · Last seen 2026-05-30 · ok HTTP/1.1 200 2735 ms crawled 2026-05-30

SK · 37.9.175.164 · AS51013 WebSupport s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Language

Generator

WordPress 5.8.13

Canonical

https://lumenservisni.cz/

Feeds

Technology

Server: openresty
CMS: WordPress 5.8.13 legacy (latest 7.0)
jQuery: 3.6.0

Fonts

Google Fonts

Third-party hosts loaded (4)

fonts.googleapis.com×1
fonts.gstatic.com×1
gmpg.org×1
s.w.org×1

Contact

Email

DNS records live

NS

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

MX

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

Verified for

Microsoft 365

Email authentication weak

SPF: v=spf1 include:spf.protection.outlook.com include:_spf.m1.websupport.sk -all
strict (-all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-05-12 to 2026-08-10

Expires in 71 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked live page: https://lumenservisni.cz/

present

referrer-policy

findings

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

Header values

referrer-policy: no-referrer-when-downgrade