basarch.cz

https://basarch.cz· First analyzed 12 May 2026· Updated 12 May 2026

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basarch.cz

Mobile

Sponsored

Hosting Provider

Web4U s.r.o

IP Address

81.91.86.12

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS39790

Organization

Web4U s.r.o

Server

OpenResty

Nameservers

ns.web4u.cz.ns2.web4u.cz.

Performance

Core Web Vitals

Weight

First Contentful Paint

803 ms10%

Speed Index

1.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

27.7 MB

35 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Web4U s.r.o

Technology Stack

6 Technologies Detected

Libraries

UI Components

Other

CSS Frameworks

Analytics

Web Servers

SEO Analysis

D44/100

Meta Tags5/15

Content7/12

Headings0/8

Technical11/21

E-E-A-T3/7

Images2/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

basarch.czbasarch.cz

BASARCH.CZ

Domovská stránka

Title Length10 chars

Recommended: 50-60 chars (~59px / 580px)

Description Length16 chars

Recommended: 120-160 chars

Issues (1)

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

12 issues found

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Local SEO

Local Search Readiness

8/100

Poor

2 13 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

F37/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

0/25

Citation

10/25

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

navheader/footer

Text ratio:2%

Words:54

Token eff.:Too Short

Sections/1K:40

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary37w

Descriptive Headingsavg 2.5w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

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.

74/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

18/20

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

5/15

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.

1 recommendation

•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.

11/100

3.51 g

CO₂e / view

27.7 MB

Page Weight

Cleaner Than

New Visitor

4.01 g

Returning (cached)

2.01 g

Annual (10K/mo)

421.2 kg

Emission Segments

Data Center

784 mg

Network

842 mg

Device

1.88 g

Resource Breakdown

JavaScript

159.6 KB

Images

27.5 MB

CSS

30.3 KB

HTML

15.2 KB

Green Hosting Not Verified

Web4U s.r.o

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Static / Informational

No SSL

No WAF

nulld

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

content-type

text/html; charset=utf-8

date

Tue, 12 May 2026 06:34:01 GMT

server

openresty

transfer-encoding

chunked

vary

Accept-Encoding

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx.redcat.cz

Domain Information

basarch.cz

Domain Age

15y 6m

Created

03.11.2010

Expires

02.11.2026

Last Updated

03.11.2010

Registrar

REG-WEB4U

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

31/100

Not 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, maximum-scale=1.0, user-scalable=no

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Lucida Sans Unicode

WCAG Partial

50/100

Readability

/30

14/30

12px · LH 1.50

Hierarchy

/20

10/20

WCAG

/25

12/25

1:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Lucida Sans Unicode

Body Font

Lucida Sans Unicode

Mono12px

Contrast Ratio

1:1

8 issues

Reading Comfort

Single Family

left aligned

12px

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

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

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 1.0:1).

✅ 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

8 unique colors

4.18:1 AA Large Light

#f6f6f6

Background· 55.8%

#71777f

Other· 2.8%

#c6d1d5

Primary· 13.7%

#80a0bf

Secondary· 9.7%

#99aebd

Secondary· 6.1%

#e1dad1

Secondary· 4.5%

#ebe9e4

Secondary· 3.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)google-analytics.com(1)

Website Identity

basarch.cz

15 years old

Location detected: 🇨🇿 Czech Republicvia tld

REG-WEB4Uen

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Last analyzed: 12 May 2026 at 06:34

Historical Analysis & Change Tracking