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rozhlas.cz

https://rozhlas.cz· First analyzed 19 Feb 2026· Updated 19 Feb 2026
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rozhlas.cz

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Hosting Provider

IP Address

91.241.10.4

Server Location

🇨🇿 Prague, Czechia

ASN

AS35236

Organization

ALGOTECH, s.r.o

Server

Nginx

Nameservers

ns1.cro.cz.ns2.cro.cz.nsa.ces.net.

Performance

Page Speed

4.1 MB
100 requests

Image Optimization

Lazy LoadAVIFResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupalv7

Technology Stack

11 Technologies Detected

Libraries

2

Meta Frameworks

1

Other

1

CSS Frameworks

1

Tag Managers

1

Web Servers

1

SEO Analysis

C62/100
9
4
1
R
rozhlas.czrozhlas.cz

Portál Českého rozhlasu

Nejrychlejší zpravodajství a vysílání online. Stanice, program, podcasty, nové rozhovory, rozhlasové hry a audioknihy.

Title Length23 chars

Recommended: 50-60 chars

Description Length118 chars

Recommended: 120-160 chars

Issues (1)

  • Missing H1 tag - every page should have one H1

Crawlability

Sitemap

Type: index

1 URLs

robots.txt

87 rules

Sponsored

Sponsored

B

Security Score

76%Good
Interactive

HTTPS

No WAF

114d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

13.05.2025

Valid Until

13.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.rozhlas.czrozhlas.cz

SHA-256 Fingerprint

29:FB:67:81:0E:8E:A6:9A:8E:A3:04:C3:E6:50:37:21:E7:48:A7:F1...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

access-control-allow-origin
*
cache-control
🔴 No Cache(no-cache, must-revalidate)
connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-language
cs
content-security-policy
upgrade-insecure-requests
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

75

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (3)

ddei1.cro.cz
ddei2.cro.cz
rs.cesnet.cz

Domain Information

rozhlas.cz

Domain Age
28y 2m

Created

17.12.1997

Expires

20.10.2032

Last Updated

13.11.2018

Registrar

REG-INTERNET-CZ

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Data Protection Officer mentioned

Typography & Readability

rozhlas_medium + rozhlas_regular

63/100
Readability
/30
32/40

16px · LH 1.38

Hierarchy
/20
8/25
WCAG
/25
15/15

Contrast: undefined

Performance
/25
13/20

2 fonts

Heading Font

rozhlas_medium

Sans

Body Font

rozhlas_regular

Sans16px

Contrast Ratio

--

Reading Comfort

~40 CPL

Needs attention
15px
h2
16px
h3
16px
p
Minor Second
Scale

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Good performance: Using 2 font families keeps load times fast.

✅ Protected text on images: Using overlay for readability.

⚠️ Cramped layout: 139 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

3

User behavior and product analytics

Advertising

1

Ad platforms and retargeting pixels

Privacy & Cookies

1

Cookie consent and privacy compliance tools

Social Media

1

Social widgets and sharing tools

4

Categories

6

Total Tools

1

Enterprise

1

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

Ad Networks

Google Ad Manager

Sponsored

Scripts & Styles

27 Resources

20
Scripts
7
Styles
8
Async
0
Defer

Top Script Sources

local(14)googletagmanager.com(3)scripts.clarity.ms(1)clarity.ms(1)google-analytics.com(1)

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Last analyzed: 19 Feb 2026 at 17:11

Historical Analysis & Change Tracking