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coolblue.nl

https://coolblue.nl· First analyzed 22 Apr 2026· Updated 22 Apr 2026
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coolblue.nl
Desktop screenshot of coolblue.nl
Mobile screenshot of coolblue.nl
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

18.239.50.64

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

CloudFront

CDN

CloudFront

Nameservers

ns-1371.awsdns-43.org.ns-1580.awsdns-05.co.uk.ns-409.awsdns-51.com.ns-895.awsdns-47.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
483 ms10%
Speed Index
628 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
240 KB
105 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Technology Stack

10 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Crazy Egg

Frameworks

1
Angular

Meta Frameworks

1
Next.js

Other

1
GSAP

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Reviews

1
Trustpilot

CDN

1
Amazon CloudFront

SEO Analysis

B77/100
23
7
0
Meta Tags11/15
Content8/12
Headings7/8
Technical24/25
E-E-A-T2/7
Images4/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
C
coolblue.nlcoolblue.nl

Coolblue - Alles voor een glimlach

Beste webwinkel 2022. Voor 23.59u besteld? Morgen gratis bezorgd. Ook op zondag! Gratis retourneren.

Title Length34 chars

Recommended: 50-60 chars (~198px / 580px)

Description Length100 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    680 URLs

    680 sub-sitemaps

    robots.txt

    267 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    21/100
    Needs Work
    6 11 1

    Sponsored

    AI & LLM Readiness

    D44/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    7/25
    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
    Text ratio:1%
    Words:1,729
    Token eff.:Optimal

    Structured Data

    3 JSON-LD
    Organization×1.1WebSiteSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary
    Descriptive Headings
    Canonical URL
    Open Graph2/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (11)
    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.
    A+
    90/100
    16
    Passed
    1
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    20/20
    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
    11/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    9/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •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.
    77/100
    A+
    24 mg
    CO₂e / view
    240.2 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    28 mg
    vs
    Returning (cached)
    14 mg
    Annual (10K/mo)
    2.9 kg
    Emission Segments
    Data Center
    1 mg
    Network
    7 mg
    Device
    16 mg
    Resource Breakdown
    HTML
    234.2 KB
    Other
    6.0 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    C

    Security Score

    64%Fair
    Interactive

    HTTPS

    No WAF

    300d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Amazon

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    18.01.2026

    Valid Until

    16.02.2027

    OCSP Stapling

    Enabled

    Subject Alternative Names (1)

    www.coolblue.nl

    SHA-256 Fingerprint

    C4:8A:99:EF:2A:29:B8:B0:18:F3:99:4C:66:5C:6D:83:7F:72:F5:20...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)
    content-encoding
    📦 Gzip(gzip)
    content-security-policy
    frame-ancestors 'self'; report-uri https://3533eaa516fe10a59...
    content-type
    text/html; charset=utf-8
    cross-origin-opener-policy
    same-origin-allow-popups
    date
    Wed, 22 Apr 2026 20:15:41 GMT
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (5)

    alt4.aspmx.l.google.com
    alt3.aspmx.l.google.com
    aspmx.l.google.com
    alt2.aspmx.l.google.com

    +1 more

    Domain Information

    coolblue.nl

    Domain Age
    25 years

    Created

    03.04.2001

    Last Updated

    11.07.2025

    Registrar

    Registrar.eu

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    Privacy policy page linked
    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
    75/100
    Mobile Friendly97 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, initial-scale=1
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Open Sans

    WCAG Partial
    64/100
    Readability
    /30
    15/30

    13px · LH 1.54

    Hierarchy
    /20
    16/20

    2x ratio

    WCAG
    /25
    17/25

    3.44:1 min contrast

    Performance
    /25
    16/25

    1 font

    Heading Font

    Open Sans

    Sans26px

    Body Font

    Open Sans

    Sans13px

    Contrast Ratio

    3.44:1

    18 issues

    Reading Comfort

    ~47 CPL

    Optimal (45–75)
    26px
    h1
    18px
    h2
    13px
    h3
    13px
    p

    ❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

    ✅ Optimal line spacing: 1.54 ratio (ideal range 1.4–1.6).

    ✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

    ⚠️ Hard to read: Flesch score 41/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 18 elements below WCAG AA threshold (min 3.4:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    Buy on MyFontsFlesch 41

    Color Palette

    7 unique colors
    10.21:1 AAA Dark
    #414141
    Other· 46.1%
    #ffffff
    Background· 21.8%
    #0090e3
    Primary· 0%
    #102938
    Accent· 8.2%
    #c0d7c5
    Secondary· 4.8%
    #4a6978
    Secondary· 3.3%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    21 Resources

    20
    Scripts
    1
    Styles
    20
    Async
    0
    Defer

    Top Script Sources

    assets.coolblue.nl(20)

    Website Identity

    Coolblue

    www.coolblue.nl
    25 years old
    Location detected: 🇳🇱 Netherlandsvia tld
    Registrar.eu📧 Google Workspacenl

    Social Profiles

    Facebook

    Sponsored

    Last analyzed: 22 Apr 2026 at 20:16

    Historical Analysis & Change Tracking