indexo.dev

webryba.cz

.cz crawl

First seen 2026-05-28 · Last seen 2026-05-31 · ok HTTP/1.1 200 718 ms crawled 2026-05-31

CZ · 81.91.92.70 · AS39790 Web4U s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
WEBRYBA.CZ
Description
Webryba, programování a design internetových aplikací
Language
cs

Technology

Server
Apache
PHP
5.6.40 end of life
jQuery
2.1.1 known XSS (<3.5)
Stack
PHP

Contact

Email
Phone

Registration

Registrar
REG-WEB4U
Created
2011-05-03
Expires
2027-05-02 335 days left
Updated
2015-01-28
Name servers
  • ns2.web4u.cz
  • ns.web4u.cz

DNS records live

NS
  • ns.web4u.cz
  • ns2.web4u.cz
MX
  • 10 mail.webryba.cz

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-25 to 2026-07-24
Expires in 53 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (4)

Linked from (2)