stadtwerke-konstanz.de

https://stadtwerke-konstanz.de· First analyzed 02 Jun 2026· Updated 02 Jun 2026

Export

Mobile

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Hosting Provider

rackSPEED GmbH

IP Address

93.89.4.164

Site Location

🇩🇪 Germanyvia phone

Server Location

🇩🇪 Düsseldorf, Germany

ASN

AS30962

Organization

rackSPEED GmbH

Server

LiteSpeed

Nameservers

ns23.domaincontrol.com.ns24.domaincontrol.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

432 ms10%

Speed Index

562 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

229 KB

151 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Technology Stack

16 Technologies Detected

Libraries

Analytics

Plugins

UI Components

CSS Frameworks

Tag Managers

Advertising

Other

Web Servers

Icon Libraries

SEO Analysis

A85/100

Meta Tags15/15

Content10/12

Headings3/8

Technical24/25

E-E-A-T2/7

Images7/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

stadtwerke-konstanz.destadtwerke-konstanz.de

Stadtwerke Konstanz – Ihr Rundum-Versorger am Bodensee

Strom, Gas, Wasser, Bus, Fähre, Internet und mehr aus einer Hand für ein l(i)ebenswertes Konstanz – nachhaltig, regional & serviceorientiert

Title Length54 chars

Recommended: 50-60 chars (~341px / 580px)

Description Length140 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

6 issues found

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Crawlability

Sitemap

Type: index

6 URLs

6 sub-sitemaps

robots.txt

6 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

30/100

Needs Work

8 10

Sponsored

AI & LLM Readiness

D57/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

8/25

Citation

19/25

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:2%

Words:861

Token eff.:Optimal

Sections/1K:5.8

Depth:1/5

Structured Data

5 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary42w

Descriptive Headingsavg 3.5w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

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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.

72/100

Passed

Critical

Warnings

Images & Alt Text

18/20

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

2/15

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

15/15

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.

65/100

A+

28 mg

CO₂e / view

229.1 KB

Page Weight

95%

Cleaner Than

New Visitor

32 mg

Returning (cached)

16 mg

Annual (10K/mo)

3.4 kg

Emission Segments

Data Center

6 mg

Network

7 mg

Device

15 mg

Resource Breakdown

JavaScript

160.5 KB

Images

15.3 KB

HTML

50.9 KB

Other

2.5 KB

Green Hosting Not Verified

rackSPEED GmbH

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

34d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp384r1) (384 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

07.04.2026

Valid Until

06.07.2026

Subject Alternative Names (2)

stadtwerke-konstanz.dewww.stadtwerke-konstanz.de

SHA-256 Fingerprint

61:F2:AB:12:91:E0:EA:4E:32:32:57:F4:4E:BB:77:29:BD:99:2E:03...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...

cache-control

🟡 1s(public, max-age=1)

content-encoding

⚡ Brotli(br)

content-length

52454

content-type

text/html; charset=UTF-8

date

Tue, 02 Jun 2026 09:11:41 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (4)

mx02.hornetsecurity.com

mx04.hornetsecurity.com

mx03.hornetsecurity.com

mx01.hornetsecurity.com

Domain Information

stadtwerke-konstanz.de

Last Updated

14.09.2024

DNSSEC

Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner

Usercentrics

GDPR Indicators

Cookie consent banner detected

CMP: Usercentrics

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.

77/100

Mobile Friendly10 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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Germalt

WCAG Partial

54/100

Readability

/30

20/30

16px · LH 1.44

Hierarchy

/20

8/20

WCAG

/25

13/25

1:1 min contrast

Performance

/25

13/25

1 font · 5 req

Heading Font

Germalt

Sans

Body Font

Germalt

Sans16px

Contrast Ratio

1:1

31 issues

Reading Comfort

~34 CPL

Narrow lines

40px

24px

16px

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

✅ Optimal line spacing: 1.44 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 40/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 31 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

Buy on MyFontsFluid TypeFlesch 40

Color Palette

12 unique colors

Light

#ffffff

Background· 28.2%

#0f0604

Primary· 12.5%

#f8002e

Accent· 8.9%

#492b1f

Secondary· 8%

#6f4738

Secondary· 6.9%

#a2786a

Secondary· 6.6%

#955b49

Secondary· 6.3%

#351a10

Accent· 6.2%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

stadtwerke-konstanz.de(7)(5)googletagmanager.com(3)connect.facebook.net(2)web.cmp.usercentrics.eu(2)

Website Identity

Stadtwerke Konnstanz GmbH

Organization

Strom, Gas, Wasser, Bus, Fähre, Internet und mehr aus einer Hand für ein l(i)ebenswertes Konstanz – nachhaltig, regional & serviceorientiert

[email protected]

+4975318030

www.stadtwerke-konstanz.de/

Location detected: 🇩🇪 Germanyvia phone

Social Profiles

Facebook Instagram LinkedIn

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Last analyzed: 02 Jun 2026 at 09:12

Historical Analysis & Change Tracking