investtel.cz

.cz dns

First seen 2026-05-30 · Last seen 2026-06-02 · ok HTTP/1.1 200 282 ms crawled 2026-05-31

CZ · 94.74.220.5 · AS16246 O2 Czech Republic, a.s.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Internet + televize, inženýrské sítě, telekomunikace | INVEST TEL, s.r.o. Klatovy
Description: Internet + televize, inženýrské sítě, telekomunikace
Language: cs
Generator: PSpad

Technology

Server: Apache
jQuery: 2.1.4 known XSS (<3.5)
Stack: PHP

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (6)

cdnjs.cloudflare.com×2
code.jquery.com×2
ajax.googleapis.com×1
fonts.googleapis.com×1
jssorcdn7.azureedge.net×1
www.googletagmanager.com×1

Contact

Email

info@investtel.cz

Registration

Registrar

REG-WEBGLOBE

Created

1998-01-09

Expires

2026-10-05 124 days left

Updated

2024-01-02

Name servers

dns1.investtel.cz
dns2.investtel.cz

DNS records live

NS

dns1.investtel.cz
dns2.investtel.cz

MX

5 mail3.investtel.cz

Email authentication strong

SPF

v=spf1 mx -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; ruf=mailto:postmaster@investtel.cz; sp=quarantine

policy: quarantine · sp=quarantine

DKIM

default: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDNAced3EuQHOPUupvsVHY9HFUoLQ+B68x16c9qv+pf4mRtocbKC3nWuPf8ZJaFxhAB9ne0VhBehMTn/bo7akJPb9vliVu…

selectors probed

Certificate (current)

R13

from 2026-05-15 to 2026-08-13

Expires in 72 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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