vspi.cz

https://vspi.cz· First analyzed 21 May 2026· Updated 21 May 2026

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vspi.cz

Mobile

Sponsored

Hosting Provider

Oracle Cloud

oracle.com/cloud

IP Address

141.147.0.0

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS31898

Organization

Oracle Cloud Infrastructure (eu-frankfurt-1)

Server

Nginx

Nameservers

ns.wedos.eu.ns.wedos.com.ns.wedos.net.ns.wedos.cz.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

374 ms10%

Speed Index

486 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

17 KB

4 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Oracle Cloud

Technology Stack

1 Technologies Detected

Web Servers

Nginx

SEO Analysis

F39/100

Meta Tags4/15

Content2/12

Headings3/8

Technical13/25

E-E-A-T0/7

Images4/7

Links1/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

vspi.czvspi.cz

Virtuální server π

No description available for this page.

Title Length18 chars

Recommended: 50-60 chars (~107px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Very thin content (19 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

11 issues found

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Crawlability

Sitemap

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

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

F24/100

Bot Access

20/25

Machine Read.

1/25

Schema Data

0/25

Citation

3/25

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:10%

Words:16

Token eff.:Too Short

Sections/1K:10

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 3w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

69/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

9/20

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

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 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.

56/100

A+

2 mg

CO₂e / view

17.2 KB

Page Weight

95%

Cleaner Than

New Visitor

2 mg

Returning (cached)

1 mg

Annual (10K/mo)

252 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

1 mg

Resource Breakdown

Images

14.8 KB

CSS

1.7 KB

HTML

731 B

Green Hosting Not Verified

Oracle Cloud

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

88%Very Good

Static / Informational

HTTPS

No WAF

52d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

14.04.2026

Valid Until

13.07.2026

Subject Alternative Names (2)

vspi.czwww.vspi.cz

SHA-256 Fingerprint

68:18:13:02:3F:09:6C:EB:95:CD:24:B5:E7:A2:48:09:E1:B6:36:7A...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Thu, 21 May 2026 21:53:23 GMT

referrer-policy

same-origin

server

nginx

vary

Accept-Encoding

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

vspi.cz

Domain Age

1y 8m

Created

03.09.2024

Expires

02.09.2026

Registrar

REG-WEDOS

DNSSEC

Not Enabled

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.

53/100

Mobile Friendly

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=1.0

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Geist Mono

WCAG AA

60/100

Readability

/30

21/30

38px · LH --

Hierarchy

/20

8/20

WCAG

/25

16/25

5.25:1 min contrast

Performance

/25

15/25

1 font · 1 req

Heading Font

Geist Mono

Mono

Body Font

Geist Mono

Mono38px

Contrast Ratio

5.25:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Font Family

left aligned

77px

38px

✅ Excellent readability: 38px body text is ideal for all devices.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.2:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

7 unique colors

8.23:1 AAA Dark

#020202

Text· 1.2%

#a4a3a0

Other· 0.8%

#e5e3d4

Secondary· 93.50000000000001%

#d4d2ca

Secondary· 1.7%

#6e6b8a

Secondary· 1.1%

#fdfdfb

Primary· 1%

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Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

vspi.cz

1 year old

Location detected: 🇨🇿 Czech Republicvia tld

REG-WEDOSen

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Last analyzed: 21 May 2026 at 21:53

Historical Analysis & Change Tracking