symma.cz

.cz crawl

First seen 2026-06-03 · Last seen 2026-06-04 · ok HTTP/1.1 200 245 ms crawled 2026-06-03

CZ · 81.2.194.244 · AS24806 INTERNET CZ, a.s.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: SYMMA, spol. s r.o. – KONFERENCE – KONGRESY – SYMPOZIA
Language: cz

Technology

Server: aruba-proxy

Fonts

Google Fonts

Third-party hosts loaded (1)

fonts.googleapis.com×4

Contact

Email

Phone

DNS records live

NS

ns.forpsi.cz
ns.forpsi.it
ns.forpsi.net

MX

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

Verified for

Microsoft 365

Email authentication strong

SPF

v=spf1 include:spf.protection.outlook.com include:_spf.forpsi.com a:gate.pr-hosting.cz a:gate2.pr-hosting.cz -all

strict (-all)

DMARC

v=DMARC1; p=reject

policy: reject (enforced)

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwDCTbm6eaBckZmW7euqiqUbUj0v+TTYAEfwgRXh6RIOG221MxCN5V0kmTt3VQpNiD2pCT9bhz4cp3J…

selectors probed

Certificate (current)

Actalis Domain Validation Server CA G3

from 2026-05-05 to 2026-11-20

Expires in 169 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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