ssrv.cz

.cz crawl

First seen 2026-05-31 · Last seen 2026-06-02 · ok HTTP/1.1 200 556 ms crawled 2026-06-01

CZ · 81.91.84.107 · AS39790 Web4U s.r.o.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Střední škola rybářská a vodohospodářská Jakuba Krčína Třeboň

Technology

Server: Apache
Stack: PHP

Social widgets

YouTube Embed

Third-party hosts loaded (3)

c.seznam.cz×1
cdnjs.cloudflare.com×1
www.youtube.com×1

Social

Contact

Email

Phone

+420 384 721 216

Registration

Registrar

REG-INTERNET-CZ

Created

2008-09-09

Expires

2029-09-08 1193 days left

Updated

2011-10-04

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

0 ssrv-cz.mail.protection.outlook.com

Verified for

Google
Microsoft 365

Email authentication partial

SPF

v=spf1 include:spf.protection.outlook.com -all

strict (-all)

DMARC

v=DMARC1; p=none; rua=mailto:reporty@12-mail.cz

policy: none (monitoring only)

DKIM

selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQChpzDv3oT9bBWwtZ/SfdT6Ap/CIHnDa+ZeT0Jcar2OPj1c73qasDYswjKC87DHapqDkS5f9zlZNrw5+1iT+w…

selectors probed

Certificate (current)

R13

from 2026-03-05 to 2026-06-03

Expires in 0 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present

strict-transport-security

findings

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

Header values

strict-transport-security: max-age=63072000; includeSubdomains; preload