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swb.de

https://swb.de· First analyzed 13 May 2026· Updated 13 May 2026
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swb.de
Desktop screenshot of swb.de
Mobile screenshot of swb.de
Mobile

Sponsored

Hosting Provider

IP via link11.de

IP Address

128.65.223.184

Site Location

🇩🇪 Bremen, Germanyvia schema_nap

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS34309

Organization

IP via link11.de

Nameservers

ans0.ewetel.de.ans1.ewetel.net.ans2.ewetel.de.ans3.ewetel.net.

Performance

93

Core Web Vitals

Weight

First Contentful Paint
1.3 s10%
Speed Index
1.7 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.5 MB
51 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
IP via link11.de

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

SEO Analysis

B79/100
22
5
0
Meta Tags15/15
Content10/12
Headings8/8
Technical21/25
E-E-A-T2/7
Images6/7
Links5/5
URL5/5
Social1/5
Freshness0/4
Mobile3/4
Indexability3/3
S
swb.deswb.de

Energie & Telekommunikation für Bremen & umzu | swb

swb – Ihr regionaler Ver- und Entsorger aus Bremen mit Produkten und Dienstleistungen rund um Strom, Erdgas, Wasser, Wärme, IT und Telekommunikation.

Title Length51 chars

Recommended: 50-60 chars (~319px / 580px)

Description Length149 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    24 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    40/100
    Fair
    11 9

    Sponsored

    AI & LLM Readiness

    F34/100
    Bot Access
    20/25
    Machine Read.
    1/25
    Schema Data
    5/25
    Citation
    8/25

    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:9%
    Words:4,303
    Token eff.:Poor Structure

    Structured Data

    2 JSON-LD
    Organization×1.1BreadcrumbList
    sameAs entity links

    Citation Readiness

    Opening Summary73w
    Descriptive Headings
    Canonical URL
    Open Graph0/3
    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
    76/100
    11
    Passed
    4
    Critical
    0
    Warnings
    Images & Alt Text
    18/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    11/20
    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
    6/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 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.
    40/100
    D
    260 mg
    CO₂e / view
    2.5 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    297 mg
    vs
    Returning (cached)
    149 mg
    Annual (10K/mo)
    31.2 kg
    Emission Segments
    Data Center
    13 mg
    Network
    76 mg
    Device
    171 mg
    Resource Breakdown
    JavaScript
    114.6 KB
    Images
    318.9 KB
    CSS
    2.0 MB
    HTML
    65.1 KB
    Other
    910 B
    Green Hosting Verified
    Link11 GmbH
    GWF Verified
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    147d

    Certificate Details

    Type

    Extended Validation (EV)

    Certificate Authority

    DigiCert Inc

    Key Algorithm

    RSA (4096 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    23.03.2026

    Valid Until

    07.10.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    www.swb.deswb.de

    SHA-256 Fingerprint

    90:3A:CA:47:00:FE:91:E0:D7:1E:99:64:2A:EA:63:26:65:9E:C4:28...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-cache)
    content-type
    text/html; charset=utf-8
    date
    Wed, 13 May 2026 11:21:46 GMT
    expires
    Thu, 01 Aug 1978 00:01:48 GMT
    x-l11-trace
    ash3-lb1
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    swb-de.mail.protection.outlook.com

    Domain Information

    swb.de

    Last Updated

    21.11.2018

    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
    Legitimate interest basis 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
    77/100
    Mobile Friendly24 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=1.0, user-scalable=yes
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Noto Sans

    WCAG Partial
    67/100
    Readability
    /30
    19/30

    15px · LH 1.50

    Hierarchy
    /20
    16/20

    1.87x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    1.07:1 min contrast

    Performance
    /25
    13/25

    1 font · 6 req

    Heading Font

    Noto Sans

    Sans28px

    Body Font

    Noto Sans

    Sans15px

    Contrast Ratio

    1.07:1

    1 issue

    Reading Comfort

    ~41 CPL

    Narrow lines
    28px
    h1
    28px
    h2
    28px
    h3
    22px
    h4
    15px
    p

    ⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

    ⚠️ Hard to read: Flesch score 36/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.1:1).

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

    ✅ Lean font stack: 1 font families keeps load times fast.

    Buy on MyFontsFlesch 36

    Color Palette

    7 unique colors
    4.53:1 AA Light
    #ffffff
    Background· 62.3%
    #6b7a6f
    Other· 5.5%
    #c7beb6
    Primary· 5.6%
    #613a36
    Secondary· 4.6%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    CookiebotMid-Market

    Cookie consent and privacy compliance tools

    2

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    7 Resources

    6
    Scripts
    1
    Styles
    3
    Async
    0
    Defer

    Top Script Sources

    consent.cookiebot.com(2)local(2)googletagmanager.com(1)gpt.swb.botario.com(1)

    Website Identity

    swb AG

    swb AG

    Organization
    0421 359-3590
    www.swb.de

    Theodor-Heuss-Allee 20, Bremen

    28215, Bremen

    DE

    Location detected: 🇩🇪 Germany, Bremenvia schema_nap
    📧 Microsoft 365de

    Sponsored

    Last analyzed: 13 May 2026 at 11:22

    Historical Analysis & Change Tracking