supersaas.cz

.cz crawl

First seen 2026-05-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 19724 ms crawled 2026-05-17

IE · 52.50.7.166 · AS16509 Amazon.com, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Rezervační systém zdarma a online rezervační kalendář
Description: Online rezervační systém pro jakýkoli typ služeb. Flexibilní a dostupný rezervační systém lze jednoduše vložit do jakéhokoli webu. Základní verze zdarma.
Language: cs

Open Graph

url: https://www.supersaas.cz/
title: Rezervační systém SuperSaaS
site name: SuperSaaS.cz

Technology

Server: Apache
CMS: Gatsby

Analytics

Google Tag Manager

Third-party hosts loaded (2)

static.supersaas.net×44
www.googletagmanager.com×1

Social

DNS records live

NS

ns-1206.awsdns-22.org
ns-124.awsdns-15.com
ns-1778.awsdns-30.co.uk
ns-527.awsdns-01.net

MX

1 aspmx.l.google.com
10 aspmx2.googlemail.com
10 aspmx3.googlemail.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com

Email authentication strong

SPF

v=spf1 ip4:185.183.32.172 ip6:2a00:7c80:0:261::2 ip4:213.227.134.181 ip6:2001:1af8:4a00:4:3::2 ip4:62.112.10.127 ip6:2a00:7c80:0:e9::2 include:_spf.google.com include:mailgun.org -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; pct=100; rua=mailto:re+y2znfxfmlv4@dmarc.postmarkapp.com; sp=reject; aspf=s; adkim=s;

policy: quarantine · sp=reject

DKIM

google: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC+SN1ZMPdcYIZGQ4On6K0k+L/pdyK7TT0Bx6h3djstsZVfGRfddnEekggm0L87gjdWyhujDFPLL1ZsH0VlA5…
k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCbBHKHRGgcF5yrgEaTDyrpJ09tLBMoLK6UV6eXJL7jT1qW++4hx3197T3xztwUMzGDIL3W8Nr2rlJK08MwuVV26GJ841S…
mail: v=DKIM1; k=rsa; t=y; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCkWiUBfscUgLQZ2rp341yPOq7Rx/rHt6Kbcg18IV4I8Q6HvSKNurMbn64EQNU9E5YeWo34gMsMCMyTi…

selectors probed

Certificate (current)

Amazon RSA 2048 M04

from 2025-06-26 to 2026-07-25

Expires in 65 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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