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serialzone.cz

https://serialzone.cz· First analyzed 01 May 2026· Updated 01 May 2026
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serialzone.cz
Desktop screenshot of serialzone.cz
Mobile screenshot of serialzone.cz
Mobile

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Hosting Provider

Ignum s.r.o

IP Address

62.109.154.238

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS29134

Organization

Ignum s.r.o

Server

Nginx

Nameservers

ns3.savana.cz.ns1.savana.cz.ns2.savana.cz.

Performance

96

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
294 KB
93 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Ignum s.r.o

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

9 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Advertising

2
Google AdsGoogle AdSense

Libraries

1
jQueryv3.5.1

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

C69/100
18
8
1
Meta Tags14/15
Content10/12
Headings3/8
Technical18/25
E-E-A-T3/7
Images2/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
S
serialzone.czserialzone.cz

SerialZone.cz – nejzábavnější seriálový web | SerialZone.cz

Seriály z celého světa na jednom místě. Spousty informací a novinek o všech myslitelných seriálech. Kalendář vysílaných seriálů, osobní watchlist. A navíc da...

Description truncated.
Title Length59 chars

Recommended: 50-60 chars (~348px / 580px)

Description Length191 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

28 URLs

28 sub-sitemaps

robots.txt

12 rules

Sitemap reference found

Local SEO

Local Search Readiness

3/100
Poor
1 14 2

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

F38/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
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:771
Token eff.:Optimal
Sections/1K:1.3

Structured Data

No Schema

Citation Readiness

Opening Summary178w
Descriptive Headingsavg 2w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
Upgrade to view recommendations

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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.
B
73/100
10
Passed
5
Critical
0
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
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
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
49/100
A+
36 mg
CO₂e / view
294.2 KB
Page Weight
90%
Cleaner Than
New Visitor
42 mg
vs
Returning (cached)
21 mg
Annual (10K/mo)
4.4 kg
Emission Segments
Data Center
8 mg
Network
9 mg
Device
20 mg
Resource Breakdown
JavaScript
281.5 KB
Fonts
2.6 KB
HTML
9.9 KB
Other
307 B
Green Hosting Not Verified
Ignum s.r.o
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

46%Poor
Interactive

HTTPS

No WAF

39d

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

12.03.2026

Valid Until

10.06.2026

Subject Alternative Names (2)

serialzone.czwww.serialzone.cz

SHA-256 Fingerprint

4B:F8:03:B7:64:40:98:DC:C8:3F:4C:8B:E0:5D:65:C1:49:7F:40:FA...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-length
9811
content-type
text/html; charset=UTF-8
date
Fri, 01 May 2026 20:21:44 GMT
Good Warning Issue

Email Infrastructure

Google Workspace

Score

20

SPF
DKIM
DMARC

MX Records (2)

aspmx.l.google.com
alt1.aspmx.l.google.com

Domain Information

serialzone.cz

Domain Age
18y 11m

Created

04.06.2007

Expires

03.06.2026

Last Updated

09.11.2010

Registrar

REG-INTERNET-CZ

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.
C
67/100
Mobile Friendly1 breakpoint
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
initial-scale=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

K2D + Arial

WCAG Partial
50/100
Readability
/30
18/30

13px · LH 1.50

Hierarchy
/20
3/20
WCAG
/25
14/25

1:1 min contrast

Performance
/25
15/25

System fonts

Heading Font

K2D

Sans

Body Font

Arial

Sans13px

Contrast Ratio

1:1

16 issues

Reading Comfort

~50 CPL

Optimal (45–75)
16px
h2
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~50 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 48/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

GGoogle FontsFluid TypeFlesch 48

Color Palette

7 unique colors
Light
#f9f9f9
Primary· 72.4%
#004b8c
Accent· 7.4%
#7baac8
Secondary· 6.7%
#0088e5
Accent· 6.1%
#202a5e
Secondary· 1.1%
#3a74a8
Secondary· 0.7%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Google AdsEnterprise

Ad platforms and retargeting pixels

2

Categories

3

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

Ad Networks

Google AdSense

Sponsored

Scripts & Styles

22 Resources

20
Scripts
2
Styles
14
Async
1
Defer

Top Script Sources

googletagmanager.com(5)code.jquery.com(2)serialzone.cz(2)youtube.com(1)pagead2.googlesyndication.com(1)

Website Identity

serialzone.cz

18 years old
Location detected: 🇨🇿 Czech Republicvia tld
REG-INTERNET-CZ📧 Google Workspacecs

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Last analyzed: 01 May 2026 at 20:22

Historical Analysis & Change Tracking