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jacob.de

https://jacob.de· First analyzed 15 May 2026· Updated 15 May 2026
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jacob.de
Desktop screenshot of jacob.de
Mobile screenshot of jacob.de
Mobile

Sponsored

Hosting Provider

JACOB Elektronik GmbH

IP Address

109.109.206.28

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Baden-Baden, Germany

ASN

AS12843

Organization

JACOB Elektronik GmbH

Server

Apache

Nameservers

ns64.domaincontrol.com.ns63.domaincontrol.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
424 ms10%
Speed Index
551 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
655 KB
101 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
JACOB Elektronik GmbH

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
HTMX

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Advertising

1
Google Ads

Web Servers

1
Apachev2.4.67

SEO Analysis

A81/100
23
6
0
Meta Tags10/15
Content11/12
Headings7/8
Technical21/25
E-E-A-T5/7
Images7/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile3/4
Indexability3/3
J
jacob.dejacob.de

PCs, Hardware, Software & weiteres Zubehör bei JACOB online kaufen

Sind Sie auf der Suche nach einem neuen PC oder bestimmten PC Komponenten? Im JACOB Onlineshop finden Sie eine große Auswahl an PCs, Hardware, Sofware & Zube...

Description truncated.
Title Length66 chars

Recommended: 50-60 chars (~407px / 580px)

Description Length226 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    144 URLs

    robots.txt

    21 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    8/100
    Poor
    2 15 1

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

    Sponsored

    AI & LLM Readiness

    D49/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    7/25
    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
    Text ratio:7%
    Words:2,421
    Token eff.:Optimal

    Structured Data

    1 JSON-LD
    Person×1.3(min)Organization×1.1BreadcrumbListmicrodataSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary13w
    Descriptive Headingsavg 2w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    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.
    B
    70/100
    12
    Passed
    5
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    13/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    5/15
    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
    8/15
    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.
    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.
    53/100
    B
    81 mg
    CO₂e / view
    655.2 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    93 mg
    vs
    Returning (cached)
    46 mg
    Annual (10K/mo)
    9.7 kg
    Emission Segments
    Data Center
    18 mg
    Network
    19 mg
    Device
    44 mg
    Resource Breakdown
    JavaScript
    83.0 KB
    Images
    58.2 KB
    CSS
    470.7 KB
    Fonts
    5.0 KB
    HTML
    26.4 KB
    Other
    12.0 KB
    Green Hosting Not Verified
    JACOB Elektronik GmbH
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    46%Poor
    Interactive

    HTTPS

    No WAF

    215d

    Certificate Details

    Type

    Extended Validation (EV)

    Certificate Authority

    Sectigo Limited

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    15.11.2025

    Valid Until

    16.12.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (3)

    www.jacob.dedirekt.jacob.dejacob.de

    SHA-256 Fingerprint

    FD:2B:E2:D7:1C:32:3E:00:2A:0E:57:6A:02:AB:DF:D7:3E:4E:8E:45...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    572
    cache-control
    🟡 600s(max-age=600, public, max-age=0)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=UTF-8
    date
    Fri, 15 May 2026 14:43:56 GMT
    etag
    "c18469a153bbecc325d259b67fadfed4-gzip"
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    smtp.jacob-computer.de

    Domain Information

    jacob.de

    Last Updated

    07.05.2024

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot
    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
    84/100
    Mobile Friendly147 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, maximum-scale=5, user-scalable=0
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Greycliff + Helvetica

    WCAG Partial
    57/100
    Readability
    /30
    15/30

    13px · LH 1.30

    Hierarchy
    /20
    6/20
    WCAG
    /25
    18/25

    2.91:1 min contrast

    Performance
    /25
    18/25

    2 fonts · 3 req

    Heading Font

    Greycliff

    Sans

    Body Font

    Helvetica

    Sans13px

    Contrast Ratio

    2.91:1

    1 issue

    Reading Comfort

    ~37 CPL

    Narrow lines
    24px
    h2
    13px
    p

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

    ⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

    ⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 2.9:1).

    ❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

    ✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

    Buy on MyFonts

    Color Palette

    6 unique colors
    3.84:1 AA Large Light
    #7f7f7f
    Other· 50.3%
    #fafafa
    Primary· 20.8%
    #646b54
    Secondary· 14.9%
    #27293e
    Secondary· 9.4%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    A/B Testing & Optimization

    1
    KameleoonEnterprise

    Experimentation and conversion optimization

    2

    Categories

    3

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    25 Resources

    20
    Scripts
    5
    Styles
    9
    Async
    10
    Defer

    Top Script Sources

    local(9)googletagmanager.com(4)aproxy.ksgct.de(2)webcachex-eu.datareporter.eu(1)challenges.cloudflare.com(1)

    Website Identity

    JACOB.de

    www.jacob.de
    Location detected: 🇩🇪 Germanyvia tld
    de

    Sponsored

    Last analyzed: 15 May 2026 at 14:44

    Historical Analysis & Change Tracking