alferia.cz

.cz crawl

First seen 2026-05-22 · Last seen 2026-05-28 · ok HTTP/1.1 200 1209 ms crawled 2026-05-28

CZ · 81.95.108.241 · AS51013 WebSupport s.r.o.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title: Literatura poznání - Alferia.cz
Language: cs
Canonical: https://www.alferia.cz/

Open Graph

url: https://www.alferia.cz/
title: Literatura poznání - Alferia.cz
locale: cs_CZ
site name: Alferia.cz

Technology

Server: nginx
CMS: WordPress
jQuery: 3.0.0 known XSS (<3.5)
Stack: PHP

Analytics

Google Tag Manager

Third-party hosts loaded (2)

cdnjs.cloudflare.com×1
www.googletagmanager.com×1

Social

Registration

Registrar

REG-ACTIVE24

Created

2015-01-19

Expires

2027-01-18 231 days left

Updated

2026-04-14

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

10 mail.grada.cz

TXT

Show 6 TXT records

2bhzf06z3qdd6rqr1lp1q2n14w4wldjt
2mfs9wmtrlffrpy6vrhtpc3z9q38x4wz
74slkf480zz19w93rjj370ddr8dly1gc
_81sg3o6bs6io1px5hq8mn8j1mses9sn
_q2i52ui0aur3ir54xusg7twbey453e9
_zbes86thoexq1v2ikx7pbg3jw7syjla

Email authentication weak

SPF

not published

DMARC

not published

DKIM

default: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQClFiK/HGWoI9gdubceL5PMPU4IYpt28J+67eE5E090+LGaLz2r2eyBvvYLpZT7YMbRAZtF/mNZQxIq9xAd96…

selectors probed

Certificate (current)

R13

from 2026-05-04 to 2026-08-02

Expires in 62 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present

x-frame-options
x-content-type-options

findings

missing HSTS
missing Content Security Policy
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: SAMEORIGIN
x-content-type-options: nosniff