oc-sestka.cz

https://oc-sestka.cz· First analyzed 04 Jun 2026· Updated 04 Jun 2026

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oc-sestka.cz

Mobile

Sponsored

Hosting Provider

ACTIVE24

IP Address

31.15.13.51

Site Location

🇨🇿 Czech Republicvia phone

Server Location

🇨🇿 Prague, Czechia

ASN

AS25234

Organization

ACTIVE24

Server

Nginx

Nameservers

ns1.thinline.cz.ns2.thinline.cz.ns3.cesky-hosting.eu.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.0 s10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

19.2 MB

171 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

ACTIVE24

Technology Stack

11 Technologies Detected

Libraries

CSS Frameworks

Analytics

Icon Libraries

Fonts

Tag Managers

Email Marketing

Web Servers

SEO Analysis

D50/100

Meta Tags5/15

Content10/12

Headings3/8

Technical11/21

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile3/4

Indexability3/3

oc-sestka.czoc-sestka.cz

Obchodní dům Šestka

Title Length19 chars

Recommended: 50-60 chars (~123px / 580px)

Description Length19 chars

Recommended: 120-160 chars

Issues (1)

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

13 issues found

Upgrade to view details

Local SEO

Local Search Readiness

25/100

Needs Work

7 8 2

Sponsored

AI & LLM Readiness

F35/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

0/25

Citation

8/25

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:1,587

Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary139w

Descriptive Headingsavg 1w

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.

64/100

Passed

Critical

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

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

9/15

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.

5 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.

11/100

2.43 g

CO₂e / view

19.2 MB

Page Weight

Cleaner Than

New Visitor

2.77 g

Returning (cached)

1.39 g

Annual (10K/mo)

291.3 kg

Emission Segments

Data Center

542 mg

Network

583 mg

Device

1.30 g

Resource Breakdown

JavaScript

393.6 KB

Images

17.7 MB

CSS

1.0 MB

Fonts

1.2 KB

HTML

19.2 KB

Green Hosting Not Verified

ACTIVE24

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

41%Poor

Interactive

HTTPS

No WAF

74d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

19.05.2026

Valid Until

17.08.2026

Subject Alternative Names (2)

oc-sestka.czwww.oc-sestka.cz

SHA-256 Fingerprint

73:4D:61:40:E7:52:25:C6:52:45:83:5D:83:2E:F6:06:BC:37:81:16...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-length

19373

content-security-policy

upgrade-insecure-requests

content-type

text/html; charset=utf-8

date

Thu, 04 Jun 2026 14:03:34 GMT

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mx1d10.thinline.cz

mx1b20.thinline.cz

Domain Information

oc-sestka.cz

Domain Age

16y 2m

Created

29.03.2010

Expires

28.03.2027

Last Updated

24.04.2026

Registrar

REG-THINLINE

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Legitimate interest basis 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.

73/100

Mobile Friendly25 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, height=device-height, initial-scale=1.0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Inter

WCAG Partial

59/100

Readability

/30

22/30

16px · LH 1.50

Hierarchy

/20

7/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

14/25

3 fonts · 6 req

Heading Font

Inter

Sans

Body Font

Inter

Sans16px

Contrast Ratio

1:1

13 issues

Reading Comfort

~39 CPL

Narrow lines

34px

32px

16px

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

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

⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 1.0:1).

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

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

GGoogle Fonts Buy on MyFontsFlesch 52

Color Palette

7 unique colors

Light

#ffffff

Background· 51.400000000000006%

#afdbdc

Secondary· 24.199999999999996%

#000001

Primary· 8.4%

#a9bcc0

Secondary· 5.5%

#2d1d42

Secondary· 4.1%

#819ba2

Secondary· 4.1%

#d5e5e6

Secondary· 2.4%

Business & Marketing Stack

5 Tools Detected

Enterprise

Marketing Automation

Brevo (Sendinblue)SMB

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)consent.cookiebot.com(2)connect.facebook.net(2)googletagmanager.com(1)sibforms.com(1)

Website Identity

oc-sestka.cz

[email protected]

+420 225 023 100

16 years old

Jak se k nám dostanete?MHD / AutomobilOtevírací dobaObchodyOTEVŘENOHypermarketOTEVŘENOFitness centrumOTEVŘENOPo - Pá 9:0

Location detected: 🇨🇿 Czech Republicvia phone

REG-THINLINEcs

Social Profiles

Facebook Instagram

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Last analyzed: 04 Jun 2026 at 14:03

Historical Analysis & Change Tracking