StackOptic
Back to Search
dek.cz favicon

dek.cz

https://dek.cz· First analyzed 24 May 2026· Updated 24 May 2026
Export
dek.cz
Desktop screenshot of dek.cz
Mobile screenshot of dek.cz
Mobile

Sponsored

Hosting Provider

NEW TELEKOM, spol. s r.o.

IP Address

92.63.50.246

Site Location

🇨🇿 Czech Republicvia phone

Server Location

🇨🇿 Prague, Czechia

ASN

AS43413

Organization

NEW TELEKOM, spol. s r.o.

Server

Apache

Nameservers

alfa.ns.active24.cz.beta.ns.active24.cz.gama.ns.active24.sk.

Performance

97

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%
524 KB
169 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
NEW TELEKOM, spol. s r.o.

Technology Stack

10 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Microsoft Clarity

Frameworks

1
Vue.jsv3.2.47

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Advertising

1
Microsoft Advertising

Web Servers

1
Apache

Customer Support

1
Zendesk

SEO Analysis

B73/100
23
6
0
Meta Tags9/15
Content10/12
Headings8/8
Technical17/25
E-E-A-T5/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
D
dek.czdek.cz

Stavebniny DEK

Vše pro vaši stavbu či rekonstrukci na jednom místě a ihned skladem. Jsme největší síť stavebnin s 94 prodejnami a vlastní půjčovnou strojů a nářadí.

Title Length14 chars

Recommended: 50-60 chars (~84px / 580px)

Description Length149 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    49 URLs

    49 sub-sitemaps

    robots.txt

    6 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    17/100
    Poor
    5 12 1

    This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

    Sponsored

    AI & LLM Readiness

    D41/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    5/25
    Citation
    9/25

    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:1,579
    Token eff.:Optimal

    Structured Data

    1 JSON-LD
    Organization×1.1BreadcrumbList
    sameAs entity links

    Citation Readiness

    Opening Summary
    Descriptive Headings
    Canonical URL
    Open Graph3/3
    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

    Sponsored

    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.
    D
    52/100
    8
    Passed
    6
    Critical
    1
    Warnings
    Images & Alt Text
    5/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    6/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    13/15
    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
    7/15
    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.
    54/100
    A
    65 mg
    CO₂e / view
    524.4 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    74 mg
    vs
    Returning (cached)
    37 mg
    Annual (10K/mo)
    7.8 kg
    Emission Segments
    Data Center
    15 mg
    Network
    16 mg
    Device
    35 mg
    Resource Breakdown
    JavaScript
    365.2 KB
    Images
    684 B
    CSS
    110.8 KB
    HTML
    46.6 KB
    Other
    1.1 KB
    Green Hosting Not Verified
    NEW TELEKOM, spol. s r.o.
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    0%Critical
    Critical / Transactional

    HTTPS

    No WAF

    89d

    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

    23.05.2026

    Valid Until

    21.08.2026

    Subject Alternative Names (2)

    dek.czwww.dek.cz

    SHA-256 Fingerprint

    D9:E7:73:08:61:34:32:EE:B6:B6:30:A1:A7:FE:A6:4A:8A:CF:80:30...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-store, no-cache, must-revalidate)
    content-encoding
    📦 Gzip(gzip)
    content-length
    47430
    content-type
    text/html; charset=utf-8
    date
    Sun, 24 May 2026 01:18:21 GMT
    expires
    Thu, 19 Nov 1981 08:52:00 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    mx1.dek.cz

    Domain Information

    dek.cz

    Domain Age
    21y 10m

    Created

    09.07.2004

    Expires

    08.07.2026

    Last Updated

    05.02.2026

    Registrar

    REG-ACTIVE24

    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.
    B
    73/100
    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, initial-scale=1
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Roboto

    WCAG AA
    87/100
    Readability
    /30
    27/30

    18px · LH 1.50

    Hierarchy
    /20
    19/20

    2x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    4.58:1 min contrast

    Performance
    /25
    22/25

    System fonts

    Heading Font

    Roboto

    Sans36px

    Body Font

    Roboto

    Sans18px

    Contrast Ratio

    4.58:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    Single Font Family

    left aligned
    36px
    h1
    31px
    h2
    18px
    p

    ✅ Excellent readability: 18px body text is ideal for all devices.

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

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.6:1).

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

    ✅ Strong hierarchy: Headlines are 2.0x larger than body text.

    ✅ System fonts: Zero font loading delay — best possible LCP impact.

    Color Palette

    9 unique colors
    Light
    #cccccc
    Other· 25.299999999999997%
    #217126
    Primary· 18.6%
    #4c342e
    Secondary· 10.3%
    #318b1e
    Accent· 9.6%
    #f0f6e8
    Secondary· 5.2%
    #44932e
    Accent· 2.7%

    Business & Marketing Stack

    4 Tools Detected

    Advanced

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    Microsoft ClarityFree

    User behavior and product analytics

    Advertising

    1
    Microsoft AdsEnterprise

    Ad platforms and retargeting pixels

    2

    Categories

    4

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    26 Resources

    20
    Scripts
    6
    Styles
    13
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(8)local(6)scripts.clarity.ms(1)clarity.ms(1)survey.survicate.com(1)

    Website Identity

    Stavebniny DEK

    Stavebniny DEK

    Kvalitní stavební materiály pro střechy, fasády a izolace od největšího prodejce stavebních materiálů v ČR.

    stavebniny@dek.cz
    +420510000100
    21 years old
    Location detected: 🇨🇿 Czech Republicvia phone
    REG-ACTIVE24cs

    Sponsored

    Last analyzed: 24 May 2026 at 01:18

    Historical Analysis & Change Tracking