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stiebel-eltron.nl

https://stiebel-eltron.nl· First analyzed 04 Jun 2026· Updated 04 Jun 2026
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stiebel-eltron.nl
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Mobile

Sponsored

Hosting Provider

Stiebel Eltron GmbH & Co.

IP Address

217.13.71.1

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇩🇪 Lengede, Germany

ASN

AS24956

Organization

Stiebel Eltron GmbH & Co.

Server

Apache

Nameservers

ns1.waaf.net.dns.wn-dns.de.ns2.waaf.net.dns.wn-dns.at.

Performance

90

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
15.9 MB
38 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Adobe Experience Manager

Technology Stack

7 Technologies Detected

Libraries

1
Lodash

Other

1
GSAP

UI Components

1
Swiper

Other

1
Modernizr

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

Web Servers

1
Apache

SEO Analysis

B74/100
23
8
0
Meta Tags9/15
Content12/12
Headings8/8
Technical19/25
E-E-A-T3/7
Images6/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile1/4
Indexability3/3
S
stiebel-eltron.nlstiebel-eltron.nl

STIEBEL ELTRON

Een milieuvriendelijk en duurzaam alternatief voor uw verwarming is een warmtepomp, ontdek de subsidies en mogelijkheden bij STIEBEL ELTRON.

Title Length14 chars

Recommended: 50-60 chars (~87px / 580px)

Description Length140 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    1 URLs

    1 sub-sitemaps

    robots.txt

    49 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    17/100
    Poor
    5 11 2

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

    Sponsored

    AI & LLM Readiness

    D42/100
    Bot Access
    20/25
    Machine Read.
    12/25
    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
    code blocksnavheader/footer
    Text ratio:8%
    Words:853
    Token eff.:Optimal
    Sections/1K:22.3
    Depth:3/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary251w
    Descriptive Headingsavg 2.8w
    Canonical URL
    Open Graph2/3
    Twitter Card0/3
    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.
    B
    71/100
    9
    Passed
    3
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    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
    0/15
    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.
    38/100
    F
    1.65 g
    CO₂e / view
    15.9 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    1.89 g
    vs
    Returning (cached)
    943 mg
    Annual (10K/mo)
    197.9 kg
    Emission Segments
    Data Center
    81 mg
    Network
    485 mg
    Device
    1.08 g
    Resource Breakdown
    JavaScript
    303.4 KB
    Images
    225.2 KB
    CSS
    151.4 KB
    Fonts
    129.9 KB
    HTML
    11.6 KB
    Other
    15.1 MB
    Green Hosting Verified
    Gärtner Datensysteme GmbH & Co. KG
    GWF Verified
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    C

    Security Score

    61%Fair
    Interactive

    HTTPS

    No WAF

    203d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Sectigo Limited

    Key Algorithm

    RSA (4096 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    24.11.2025

    Valid Until

    24.12.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.stiebel-eltron.nlstiebel-eltron.nl

    SHA-256 Fingerprint

    CF:2E:46:40:40:47:14:27:95:99:0A:8D:B3:BE:83:E8:72:27:40:F2...

    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, post-check=0, pre-check...)
    content-encoding
    📦 Gzip(gzip)
    content-language
    nl-NL
    content-length
    11590
    content-security-policy
    default-src 'self' blob: http: https: wss://bot.moin.ai/prim...
    content-type
    text/html; charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    stiebeleltron-nl01i.mail.protection.outlook.com

    Domain Information

    stiebel-eltron.nl

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked

    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.
    D
    59/100
    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
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    F2F-Regular + STEInfoWeb

    WCAG Partial
    68/100
    Readability
    /30
    23/30

    16px · LH 1.57

    Hierarchy
    /20
    13/20

    1.5x ratio · ✓ H1→H6

    WCAG
    /25
    14/25

    4:1 min contrast

    Performance
    /25
    18/25

    2 fonts · 5 req

    Heading Font

    F2F-Regular

    Sans24px

    Body Font

    STEInfoWeb

    Sans16px

    Contrast Ratio

    4:1

    10 issues

    Reading Comfort

    ~55 CPL

    Optimal (45–75)
    24px
    h1
    64px
    h2
    24px
    h3
    24px
    h4
    16px
    p
    Perfect Fourth
    Scale

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

    ✅ Optimal line spacing: 1.57 ratio (ideal range 1.4–1.6).

    ✅ Optimal line length: ~54 chars/line (ideal 45–75 CPL).

    ❌ Very complex text: Flesch score 21/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 4.0:1).

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

    Buy on MyFontsFlesch 21

    Color Palette

    9 unique colors
    7.43:1 AAA Light
    #ffffff
    Background· 16%
    #5d5352
    Other· 6.1%
    #080000
    Primary· 36.300000000000004%
    #360001
    Accent· 22.5%
    #a90e15
    Accent· 5.9%
    #301818
    Secondary· 4.5%
    #7b0104
    Accent· 2.2%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Social Media

    1
    Twitter/X WidgetsFree

    Social widgets and sharing tools

    2

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    18 Resources

    15
    Scripts
    3
    Styles
    15
    Async
    1
    Defer

    Top Script Sources

    local(13)stiebel-eltron.containers.piwik.pro(2)

    Website Identity

    stiebel-eltron.nl

    0736230000
    Location detected: 🇳🇱 Netherlandsvia tld
    📧 Microsoft 365nl

    Sponsored

    Last analyzed: 04 Jun 2026 at 04:05

    Historical Analysis & Change Tracking