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blumer-lehmann.com

https://blumer-lehmann.com· First analyzed 31 May 2026· Updated 31 May 2026
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blumer-lehmann.com
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Mobile screenshot of blumer-lehmann.com
Mobile

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Hosting Provider

MiroNet AG

IP Address

91.212.196.155

Site Location

🇨🇭 Switzerlandvia phone

Server Location

🇨🇭 Basel, Switzerland

ASN

AS49983

Organization

MiroNet AG

Server

Nginx

Nameservers

ns2.hostpoint.ch.ns.hostpoint.ch.ns3.hostpoint.ch.

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%
50 MB
97 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
MiroNet AG

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

11 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook Pixel
Hotjar

Advertising

2
LinkedIn AdsTikTok Pixel

Libraries

1
jQueryv3.6.1

Other

1
Lottie

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

B78/100
25
5
0
Meta Tags15/15
Content12/12
Headings6/8
Technical19/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile2/4
Indexability3/3
B
blumer-lehmann.comblumer-lehmann.com

Holzbau | Produkte aus Schweizer Holz | Silo- und Anlagenbau

Blumer Lehmann ist ein international führendes Holzindustrie- und Holzbauunternehmen der Schweiz und bietet eine umfassende Holz- und Holzbaukompetenz.

Title Length60 chars

Recommended: 50-60 chars (~357px / 580px)

Description Length151 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    708 URLs

    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    19/100
    Poor
    6 10 2

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

    Sponsored

    AI & LLM Readiness

    D43/100
    Bot Access
    20/25
    Machine Read.
    8/25
    Schema Data
    0/25
    Citation
    15/25

    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:5%
    Words:1,563
    Token eff.:Optimal
    Sections/1K:10.2
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary47w
    Descriptive Headingsavg 3w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    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.
    B
    78/100
    11
    Passed
    4
    Critical
    0
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    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
    9/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 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.
    22/100
    F
    6.33 g
    CO₂e / view
    50.0 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    7.23 g
    vs
    Returning (cached)
    3.62 g
    Annual (10K/mo)
    759.5 kg
    Emission Segments
    Data Center
    1.41 g
    Network
    1.52 g
    Device
    3.40 g
    Resource Breakdown
    JavaScript
    862.9 KB
    Images
    2.7 MB
    CSS
    673.4 KB
    Fonts
    133.7 KB
    HTML
    22.5 KB
    Other
    45.7 MB
    Green Hosting Not Verified
    MiroNet AG
    8 recommendations
    • •Carbon footprint recommendation preview...
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    D

    Security Score

    51%Poor
    Interactive

    HTTPS

    No WAF

    45d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    17.04.2026

    Valid Until

    16.07.2026

    Subject Alternative Names (2)

    blumer-lehmann.comwww.blumer-lehmann.com

    SHA-256 Fingerprint

    4C:6A:39:E5:21:51:30:A9:99:13:86:61:CE:23:68:DC:6A:F6:EB:EB...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-cache, no-store, must-revalidate, max-age=0)
    content-encoding
    📦 Gzip(gzip)
    content-length
    22763
    content-type
    text/html;charset=UTF-8
    date
    Sun, 31 May 2026 16:37:07 GMT
    expires
    Thu, 01 Jan 1970 00:00:00 GMT
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    98

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (1)

    blumerlehmann-com01e.mail.protection.outlook.com

    Domain Information

    blumer-lehmann.com

    Domain Age
    14y 8m

    Created

    23.09.2011

    Expires

    23.09.2026

    Last Updated

    24.09.2025

    Registrar

    Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    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.
    A
    80/100
    Mobile Friendly5 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, shrink-to-fit=no
    1 recommendation
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Grotesk

    WCAG AA
    76/100
    Readability
    /30
    24/30

    16px · LH 1.60

    Hierarchy
    /20
    15/20

    4.69x ratio

    WCAG
    /25
    17/25

    5.23:1 min contrast

    Performance
    /25
    20/25

    1 font · 3 req

    Heading Font

    Grotesk

    Sans75px

    Body Font

    Grotesk

    Sans16px

    Contrast Ratio

    5.23:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~37 CPL

    Narrow lines
    75px
    h1
    75px
    h2
    20px
    h3
    16px
    p

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

    ✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

    ❌ Very complex text: Flesch score 17/100. Consider shorter sentences and simpler words.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.2:1).

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 4.7x larger than body text.

    Buy on MyFontsFlesch 17

    Color Palette

    9 unique colors
    14.2:1 AAA Light
    #ffffff
    Primary· 67.3%
    #2c2b25
    Secondary· 3.9%
    #61584c
    Text· 9.6%
    #639174
    Secondary· 0.9%

    Business & Marketing Stack

    6 Tools Detected

    Enterprise

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    HotjarMid-Market

    User behavior and product analytics

    Advertising

    3
    Facebook PixelMid-Market
    LinkedIn AdsEnterprise
    TikTok PixelMid-Market

    Ad platforms and retargeting pixels

    2

    Categories

    6

    Total Tools

    1

    Enterprise

    3

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    22 Resources

    20
    Scripts
    2
    Styles
    18
    Async
    1
    Defer

    Top Script Sources

    analytics.tiktok.com(5)snap.licdn.com(4)connect.facebook.net(3)googletagmanager.com(3)static.hotjar.com(2)

    Website Identity

    blumer-lehmann.com

    [email protected]
    +41 71 388 58 30
    14 years old
    Location detected: 🇨🇭 Switzerlandvia phone
    Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA📧 Microsoft 365de

    Sponsored

    Last analyzed: 31 May 2026 at 16:37

    Historical Analysis & Change Tracking

    blumer-lehmann.com Technology Stack - Built With jQuery, Lottie, Tailwind CSS, Google Analytics, Google Analytics 4 | StackOptic | StackOptic