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estw.de

https://estw.de· First analyzed 04 Jun 2026· Updated 04 Jun 2026
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estw.de
Desktop screenshot of estw.de
Mobile screenshot of estw.de
Mobile

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Hosting Provider

Hehner Reus Systems GmbH

IP Address

80.237.243.87

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Cologne, Germany

ASN

AS61157

Organization

Hehner Reus Systems GmbH

Server

Apache

Nameservers

ns2.m-online.net.ns4.m-online.net.ns3.m-online.net.ns1.m-online.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
612 ms10%
Speed Index
796 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.7 MB
58 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Hehner Reus Systems GmbH

Technology Stack

8 Technologies Detected

Libraries

3
jQueryv1.9.1
jQuery UI
Day.js

Analytics

2
Google Analytics
Google Tag Manager

CSS Frameworks

1
Tailwind CSS

Advertising

1
Google Ads

Web Servers

1
Apache

SEO Analysis

B76/100
20
6
0
Meta Tags15/15
Content11/12
Headings6/8
Technical18/25
E-E-A-T3/7
Images3/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
E
estw.deestw.de

ESTW - Elektrizität, Wärme, Erdgas und Wasser aus einer Hand

Als 100 prozentige Tochter der Stadt Erlangen bieten wir unseren Kunden eine zuverlässige Versorgung mit Elektrizität, Wärme, Erdgas und Wasser aus einer Hand.

Title Length60 chars

Recommended: 50-60 chars (~370px / 580px)

Description Length159 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    270 URLs

    robots.txt

    4 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    5/100
    Poor
    2 13 2

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

    Sponsored

    AI & LLM Readiness

    D48/100
    Bot Access
    20/25
    Machine Read.
    13/25
    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
    navheader/footer
    Text ratio:5%
    Words:733
    Token eff.:Optimal
    Sections/1K:31.4
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary31w
    Descriptive Headingsavg 2.3w
    Canonical URL
    Open Graph2/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    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
    85/100
    15
    Passed
    1
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    18/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    7/15
    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
    13/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    12/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •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.
    34/100
    D
    213 mg
    CO₂e / view
    1.7 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    244 mg
    vs
    Returning (cached)
    122 mg
    Annual (10K/mo)
    25.6 kg
    Emission Segments
    Data Center
    48 mg
    Network
    51 mg
    Device
    114 mg
    Resource Breakdown
    JavaScript
    207.5 KB
    Images
    1.1 MB
    CSS
    319.8 KB
    HTML
    21.1 KB
    Green Hosting Not Verified
    Hehner Reus Systems GmbH
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    56%Poor
    Interactive

    HTTPS

    No WAF

    309d

    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

    09.03.2026

    Valid Until

    09.04.2027

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.estw.deestw.de

    SHA-256 Fingerprint

    4E:1A:26:B9:CA:53:CD:29:00:E6:B9:30:E9:11:FA:D7:71:3A:EF:E1...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    connection
    Keep-Alive
    content-encoding
    📦 Gzip(gzip)
    content-length
    21312
    content-type
    text/html; charset=iso-8859-1
    date
    Thu, 04 Jun 2026 10:37:09 GMT
    keep-alive
    timeout=5, max=100
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    50

    SPF
    DKIM
    DMARC

    MX Records (2)

    estw-30.estw.de
    estw-77.estw.de

    Domain Information

    estw.de

    Last Updated

    25.06.2012

    DNSSEC
    Not Enabled

    Privacy & Compliance

    consentmanager

    Cookie Consent Banner
    consentmanager
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: consentmanager
    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
    55/100
    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=1.0, shrink-to-fit=no
    3 recommendations
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Montserrat + Roboto

    WCAG Partial
    74/100
    Readability
    /30
    23/30

    16px · LH 1.50

    Hierarchy
    /20
    15/20

    1.6x ratio

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    Montserrat

    Sans26px

    Body Font

    Roboto

    Sans16px

    Contrast Ratio

    1:1

    15 issues

    Reading Comfort

    ~38 CPL

    Narrow lines
    26px
    h1
    23px
    h2
    16px
    h3
    16px
    p

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

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

    ⚠️ Hard to read: Flesch score 32/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ System fonts: Zero font loading delay — best possible LCP impact.

    Buy on MyFontsFlesch 32

    Color Palette

    8 unique colors
    6.23:1 AA Light
    #ededed
    Background· 45.199999999999996%
    #57574e
    Text· 5.7%
    #30491a
    Primary· 10.9%
    #292e22
    Secondary· 6%
    #afbec6
    Secondary· 4.4%
    #3e7087
    Secondary· 1.1%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    14 Resources

    13
    Scripts
    1
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    local(11)stadtwerke-ssl.de(2)

    Website Identity

    estw.de

    [email protected]
    Location detected: 🇩🇪 Germanyvia tld
    de

    Sponsored

    Last analyzed: 04 Jun 2026 at 10:37

    Historical Analysis & Change Tracking