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radio1.cz

https://radio1.cz· First analyzed 21 May 2026· Updated 21 May 2026
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radio1.cz
Desktop screenshot of radio1.cz
Mobile screenshot of radio1.cz
Mobile

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Hosting Provider

Ignum s.r.o

IP Address

62.109.151.139

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS29134

Organization

Ignum s.r.o

Server

Nginx

Nameservers

ns2.ignum.cz.ns1.ignum.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
839 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.7 MB
114 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
Customv1000000

Technology Stack

10 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook Pixel
Hotjar

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

Plugins

1
Yoast SEO

SEO Analysis

B75/100
24
6
1
Meta Tags5/15
Content9/12
Headings8/8
Technical24/25
E-E-A-T2/7
Images4/7
Links4/5
URL5/5
Social4/5
Freshness4/4
Mobile3/4
Indexability3/3
R
radio1.czradio1.cz

Radio 1

Není jiná alternativa.

Title Length7 chars

Recommended: 50-60 chars (~39px / 580px)

Description Length22 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (83/92) — critical for accessibility and SEO

7 issues found

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Crawlability

Sitemap

Type: index

30 URLs

30 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

15/100
Poor
4 13

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

D46/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
8/25
Citation
11/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:3%
Words:1,546
Token eff.:Optimal

Structured Data

4 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary263w
Descriptive Headingsavg 2w
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
C
63/100
10
Passed
4
Critical
2
Warnings
Images & Alt Text
10/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
10/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
7/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
4/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
4 recommendations
  • •Accessibility recommendation preview...
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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
25/100
F
463 mg
CO₂e / view
3.7 MB
Page Weight
15%
Cleaner Than
New Visitor
529 mg
vs
Returning (cached)
264 mg
Annual (10K/mo)
55.5 kg
Emission Segments
Data Center
103 mg
Network
111 mg
Device
248 mg
Resource Breakdown
JavaScript
7.7 KB
Images
3.5 MB
CSS
11.0 KB
HTML
34.4 KB
Other
117.4 KB
Green Hosting Not Verified
Ignum s.r.o
7 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

68d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

29.04.2026

Valid Until

28.07.2026

Subject Alternative Names (2)

radio1.czwww.radio1.cz

SHA-256 Fingerprint

E1:1B:98:13:03:2A:11:60:93:B9:49:86:3D:AA:59:E1:1A:63:5A:97...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
content-encoding
📦 Gzip(gzip)
content-language
cs
content-type
text/html; charset=UTF-8
date
Thu, 21 May 2026 02:48:08 GMT
link
<https://radio1.cz/>; rel=shortlink
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.prima-net.cz

Domain Information

radio1.cz

Domain Age
28 years

Created

25.05.1998

Expires

11.10.2026

Last Updated

24.12.2022

Registrar

REG-WEBGLOBE

DNSSEC
Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner
Quantcast Choice
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Quantcast Choice
Privacy policy page linked

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
A
84/100
Mobile Friendly44 breakpoints
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width,initial-scale=1
1 recommendation
  • •Mobile compatibility recommendation preview...
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Typography & Readability

neue-haas-grotesk-text + Arial

WCAG Partial
65/100
Readability
/30
17/30

15px · LH 1.60

Hierarchy
/20
10/20

0.94x ratio · ✓ H1→H6

WCAG
/25
16/25

4.42:1 min contrast

Performance
/25
22/25

System fonts

Heading Font

neue-haas-grotesk-text

Sans14px

Body Font

Arial

Sans15px

Contrast Ratio

4.42:1

22 issues

Reading Comfort

~43 CPL

Narrow lines
14px
h1
23px
h2
28px
h3
28px
h4
15px
p
Major Third
Scale

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 36/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 22 elements below WCAG AA threshold (min 4.4:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

AAdobe FontsBuy on MyFontsFluid TypeFlesch 37

Color Palette

6 unique colors
Light
#ffffff
Background· 52.00000000000001%
#f9d1d2
Accent· 9.4%
#f5efee
Primary· 4.7%
#899aa8
Secondary· 3.5%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Social Media

1
Facebook SDKFree

Social widgets and sharing tools

2

Categories

3

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

14 Resources

12
Scripts
2
Styles
10
Async
3
Defer

Top Script Sources

static.primacdn.cz(3)googletagmanager.com(2)sdk.privacy-center.org(2)spir.hit.gemius.pl(1)radio1.cz(1)

Website Identity

Radio1

Radio1

Organization

Není jiná alternativa.

www.radio1.cz/
28 years old
Location detected: 🇨🇿 Czech Republicvia tld
REG-WEBGLOBEcs

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Last analyzed: 21 May 2026 at 02:48

Historical Analysis & Change Tracking