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zsr.sk

https://zsr.sk· First analyzed 20 May 2026· Updated 20 May 2026
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zsr.sk
Desktop screenshot of zsr.sk
Mobile screenshot of zsr.sk
Mobile

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Hosting Provider

ZSR

IP Address

217.12.60.14

Site Location

🇸🇰 Slovakiavia tld

Server Location

🇸🇰 Vlkanová, Slovakia

ASN

AS25496

Organization

ZSR

Nameservers

ns.zsr.sk.ns.ditec.sk.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
944 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
8.3 MB
71 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
ZSR

Technology Stack

5 Technologies Detected

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Analytics

1
Google Analytics

CDN

1
Cloudflare

SEO Analysis

D57/100
16
7
2
Meta Tags4/15
Content11/12
Headings8/8
Technical14/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness2/4
Mobile4/4
Indexability3/3
Z
zsr.skzsr.sk

ŽSR | ŽSR

No description available for this page.

Title Length9 chars

Recommended: 50-60 chars (~53px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (14/20) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

849 URLs

robots.txt

Local SEO

Local Search Readiness

4/100
Poor
1 15 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

F39/100
Bot Access
20/25
Machine Read.
8/25
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
nav
Text ratio:3%
Words:1,755
Token eff.:Optimal
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary721w
Descriptive Headingsavg 5w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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
78/100
13
Passed
1
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
5/15
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
5/100
F
1.05 g
CO₂e / view
8.3 MB
Page Weight
5%
Cleaner Than
New Visitor
1.19 g
vs
Returning (cached)
597 mg
Annual (10K/mo)
125.4 kg
Emission Segments
Data Center
234 mg
Network
251 mg
Device
561 mg
Resource Breakdown
JavaScript
318.4 KB
Images
259.4 KB
CSS
7.3 MB
Fonts
840 B
HTML
447.3 KB
Green Hosting Not Verified
ZSR
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

61%Fair
Interactive

HTTPS

No WAF

272d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (3072 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

16.01.2026

Valid Until

16.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.zsr.skzsr.sk

SHA-256 Fingerprint

B0:44:74:C3:E2:56:E2:E2:FD:0E:97:78:02:39:7B:67:80:BA:C4:0B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection
keep-alive
content-length
457745
content-type
text/html;charset=utf-8
date
Wed, 20 May 2026 18:42:26 GMT
x-content-type-options
nosniff
x-frame-options
DENY
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

73

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

sbaksmg2.zsr.sk
sbaksmg1.zsr.sk

Domain Information

zsr.sk

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

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
68/100
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
width=device-width
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Poppins

WCAG Partial
76/100
Readability
/30
22/30

16px · LH 1.50

Hierarchy
/20
20/20

3.75x ratio · ✓ H1→H6

WCAG
/25
14/25

1:1 min contrast

Performance
/25
20/25

1 font · 1 req

Heading Font

Poppins

Sans60px

Body Font

Poppins

Sans16px

Contrast Ratio

1:1

4 issues

Reading Comfort

~36 CPL

Narrow lines
60px
h1
36px
h2
18px
h3
16px
p

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

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

❌ Very complex text: Flesch score 7/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 3.8x larger than body text.

GGoogle FontsFlesch 7

Color Palette

9 unique colors
3.73:1 AA Large Light
#ffffff
Background· 37.6%
#848390
Other· 3.5%
#1e1a36
Primary· 15.000000000000002%
#130c18
Secondary· 12.6%
#433e5b
Secondary· 9.8%
#eaeffc
Primary· 8.3%
#d0d1d9
Secondary· 3.8%
#302b3d
Secondary· 3.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

24 Resources

20
Scripts
4
Styles
1
Async
2
Defer

Top Script Sources

local(19)gstatic.com(1)

Website Identity

zsr.sk

Location detected: 🇸🇰 Slovakiavia tld
sk

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Last analyzed: 20 May 2026 at 18:42

Historical Analysis & Change Tracking