indexo.dev

builder.cz

.cz crawl

First seen 2026-05-21 · Last seen 2026-05-28 · ok HTTP/1.1 200 4737 ms crawled 2026-05-28

CZ · 81.91.84.189 · AS39790 Web4U s.r.o.

Reputation 62/100 listed in spam blocklist weak security headers no dmarc policy

sector tech type forum

HTML metadata

Title
Builder.cz - Informacni server o programovani
Description
Online magazín pro programátory a vývojáře z oblasti PHP, ASP, HTML, XML, JavaScriptu, Delphi, C++ Builderu.. Diskuzní fora pro řešení vašich problémů
Language
cs
Feeds

Technology

Server
Apache
CMS
Joomla
PHP
5.6.40 end of life
Stack
PHP
Ads
  • Google AdSense

Third-party hosts loaded (3)

  • pagead2.googlesyndication.com×1
  • s7.addthis.com×1
  • www.web-media.cz×1

Social

Registration

Registrar
REG-WEB4U
Created
1997-12-23
Expires
2026-10-20 141 days left
Updated
2011-12-02
Name servers
  • ns2.web4u.cz
  • ns.web4u.cz

DNS records live

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

Email authentication weak

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

Certificate (current)

R13
from 2026-04-11 to 2026-07-10
Expires in 40 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (12)

Linked from (7)