zvazvedu.cz

.cz crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 455 ms crawled 2026-06-01

US · 185.199.109.153 · AS54113 Fastly, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title: Zvaž vědu!
Language: cs
Generator: Hugo 0.128.0

Technology

CDN: Fastly
Server: GitHub.com
CMS: Hugo 0.128.0

Third-party hosts loaded (1)

kit.fontawesome.com×1

Social

Contact

Email

Phone

2903368067

DNS records live

NS

ns.web4u.cz
ns2.web4u.cz

MX

1 smtp.google.com

Verified for

Google

Email authentication partial

SPF

v=spf1 include:_spf.google.com ~all

softfail (~all)

DMARC

v=DMARC1; p=none;

policy: none (monitoring only)

DKIM

google: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCRmlNYO3zy1pR829XzKVMRxeFA9ahQoO2Tnco7t/Ju4NMTwhAV0mB4+zYUcAZHB5Q3F6Edwjy+J7LdXedX/B…

selectors probed

Certificate (current)

R13

from 2026-04-27 to 2026-07-26

Expires in 53 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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