fyziklani.cz

.cz crawl

First seen 2026-05-14 · Last seen 2026-05-19 · ok HTTP/1.1 200 6053 ms crawled 2026-05-19

CZ · 195.113.17.221 · AS2852 CESNET z.s.p.o.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title: Hlavní stránka | Fyziklání 2026
Language: cs

Open Graph

url: http://fyziklani.cz/
title: Fyziklání
locale: cs_CZ.utf-8
description: Týmová soutěž v řešení fyzikálních problémů

Technology

Server: openresty

Fonts

Google Fonts

Third-party hosts loaded (4)

fonts.googleapis.com×2
cdn.jsdelivr.net×1
cdnjs.cloudflare.com×1
fonts.gstatic.com×1

Social

Registration

Registrar

REG-INTERNET-CZ

Created

2011-08-29

Expires

2028-08-28 830 days left

Updated

2023-05-10

Name servers

ns.forpsi.cz
ns.forpsi.it
ns.forpsi.net

DNS records live

NS

ns.forpsi.cz
ns.forpsi.it
ns.forpsi.net

MX

10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
20 alt2.aspmx.l.google.com
30 aspmx2.googlemail.com
30 aspmx3.googlemail.com

Verified for

Google

Email authentication weak

SPF

not published

DMARC

not published

DKIM

google: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDGgA/98RvJnoS4N6pLykcN9KzAzySIi0BSKeRpQyjCoIorDuapURuCSJZ0o4zwysEutOH4QTtinrybgpk3xP…

selectors probed

Certificate (current)

from 2026-04-07 to 2026-07-06

Expires in 47 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://fyziklani.cz/

present

strict-transport-security
x-frame-options

findings

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

Header values

x-frame-options: SAMEORIGIN
strict-transport-security: max-age=63072000; preload