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blueboard.cz

https://blueboard.cz· First analyzed 07 May 2026· Updated 07 May 2026
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blueboard.cz
Desktop screenshot of blueboard.cz
Mobile screenshot of blueboard.cz
Mobile

Sponsored

Hosting Provider

Blueboard.cz s.r.o

IP Address

178.251.187.8

Site Location

🇨🇿 Czech Republicvia phone

Server Location

🇨🇿 Prague, Czechia

ASN

AS43541

Organization

Blueboard.cz s.r.o

Server

Apache

Nameservers

shinzon.blueboard.cz.ns2.blueboard.cz.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
668 ms10%
Speed Index
868 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
174 KB
25 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
Blueboard.cz s.r.o

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

7 Technologies Detected

Frameworks

1
Alpine.js

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Customer Support

1
Crisp

Web Servers

1
Apache

SEO Analysis

C64/100
17
9
0
Meta Tags14/15
Content6/12
Headings5/8
Technical18/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social1/5
Freshness0/4
Mobile4/4
Indexability3/3
B
blueboard.czblueboard.cz

Hosting, registrace domén a servery | Blueboard

Zaregistrujeme vám doménu, poskytneme webhosting, pronajmeme servery a rozešleme stovky i miliony obchodních e-mailů. Srozumitelné a spolehlivě služby.

Title Length47 chars

Recommended: 50-60 chars (~283px / 580px)

Description Length151 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    220 URLs

    robots.txt

    Local SEO

    Local Search Readiness

    13/100
    Poor
    4 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

    F36/100
    Bot Access
    20/25
    Machine Read.
    3/25
    Schema Data
    4/25
    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
    nav
    Text ratio:3%
    Words:180
    Token eff.:Too Short
    Sections/1K:55.6
    Depth:1/5

    Structured Data

    2 JSON-LD
    WebSiteProduct

    Citation Readiness

    Opening Summary44w
    Descriptive Headingsavg 2.2w
    Canonical URL
    Open Graph1/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (12)
    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.
    C
    68/100
    9
    Passed
    5
    Critical
    1
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    10/20
    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
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    4 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.
    58/100
    A+
    22 mg
    CO₂e / view
    174.3 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    25 mg
    vs
    Returning (cached)
    12 mg
    Annual (10K/mo)
    2.6 kg
    Emission Segments
    Data Center
    5 mg
    Network
    5 mg
    Device
    12 mg
    Resource Breakdown
    JavaScript
    42.6 KB
    Images
    100.4 KB
    CSS
    22.2 KB
    Fonts
    834 B
    HTML
    8.3 KB
    Green Hosting Not Verified
    Blueboard.cz s.r.o
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    56%Poor
    Interactive

    HTTPS

    No WAF

    17d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    GlobalSign nv-sa

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    22.04.2025

    Valid Until

    24.05.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.blueboard.czblueboard.cz

    SHA-256 Fingerprint

    EF:83:5B:8B:1C:68:7C:E4:D4:2F:DF:A0:19:42:2F:07:92:26:DD:46...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    📦 Gzip(gzip)
    content-length
    8188
    content-type
    text/html; charset=utf-8
    date
    Thu, 07 May 2026 02:07:08 GMT
    server
    Apache
    strict-transport-security
    max-age=15552000; includeSubDomains
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    50

    SPF
    DKIM
    DMARC

    MX Records (1)

    antispam.blueboard.cz

    Domain Information

    blueboard.cz

    Domain Age
    24y 7m

    Created

    12.10.2001

    Expires

    12.10.2030

    Last Updated

    15.08.2011

    Registrar

    REG-GRANSY

    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.
    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, initial-scale=1, maximum-scale=1, user-scalable=0
    1 recommendation
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Plus Jakarta Sans + Inter var

    WCAG AA
    78/100
    Readability
    /30
    21/30

    20px · LH 1.63

    Hierarchy
    /20
    15/20

    3x ratio

    WCAG
    /25
    22/25

    4.8:1 min contrast

    Performance
    /25
    20/25

    2 fonts · 1 req

    Heading Font

    Plus Jakarta Sans

    Sans60px

    Body Font

    Inter var

    Sans20px

    Contrast Ratio

    4.8:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~42 CPL

    Narrow lines
    60px
    h1
    20px
    h3
    16px
    h4
    20px
    p

    ✅ Excellent readability: 20px body text is ideal for all devices.

    ⚠️ Hard to read: Flesch score 37/100. Simplify sentences for wider reach.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.8:1).

    ❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

    ✅ Strong hierarchy: Headlines are 3.0x larger than body text.

    ✅ Lean font stack: 2 font families keeps load times fast.

    GGoogle FontsFlesch 37

    Color Palette

    4 unique colors
    2.75:1 Fail Light
    #b2b8b7
    Other· 6.4%
    #606a6f
    Other· 4.9%
    #fdfcfa
    Primary· 85.3%
    #dee7e7
    Secondary· 3.3%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Customer Support

    1
    CrispSMB

    Live chat and helpdesk tools

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    2

    Categories

    3

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    9 Resources

    5
    Scripts
    4
    Styles
    3
    Async
    1
    Defer

    Top Script Sources

    client.crisp.chat(2)googletagmanager.com(1)plausible.blueboard.cz(1)hosting.blueboard.cz(1)

    Website Identity

    Díky srozumitelnému ovládání a vstřícné podpoře u nás zvládnete založit webový hosting raz dva. Využijete ho pro svůj web, aplikaci nebo jiný digitální obsah.

    Product

    Hosting, registrace domén a servery

    hosting@blueboard.cz
    +420775086575
    hosting.blueboard.cz/
    24 years old
    Location detected: 🇨🇿 Czech Republicvia phone
    REG-GRANSY

    Social Profiles

    FacebookX (Twitter)

    Sponsored

    Last analyzed: 07 May 2026 at 02:07

    Historical Analysis & Change Tracking