konstanz.de

https://konstanz.de· First analyzed 03 May 2026· Updated 03 May 2026

Export

konstanz.de

Mobile

Sponsored

Hosting Provider

Kommunale Informationsverarbeitung Baden-Franken

IP Address

194.59.37.35

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Heimsheim, Germany

ASN

AS50964

Organization

Kommunale Informationsverarbeitung Baden-Franken

Server

Apache

Nameservers

k1z01s003.kivbf.de.k1z01s004.kivbf.de.ns.frei.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.9 MB

69 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Kommunale Informationsverarbeitung Baden-Franken

Technology Stack

7 Technologies Detected

Libraries

UI Components

CSS Frameworks

Icon Libraries

Analytics

Web Servers

Customer Support

SEO Analysis

D57/100

Meta Tags8/15

Content11/12

Headings3/8

Technical16/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

konstanz.dekonstanz.de

Start - Stadt Konstanz

Offizielle Seite der Stadt Konstanz mit Informationen zur Stadtverwaltung und Tourismus, Kultur und Freizeit-Tipps, regionaler News-Ticker und umfangreiche S...

Description truncated.

Title Length22 chars

Recommended: 50-60 chars (~136px / 580px)

Description Length172 chars

Recommended: 120-160 chars

Issues (1)

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

10 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

9 rules

Local SEO

Local Search Readiness

9/100

Poor

3 13 1

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

Sponsored

AI & LLM Readiness

F30/100

Bot Access

20/25

Machine Read.

3/25

Schema Data

2/25

Citation

5/25

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:11%

Words:3,870

Token eff.:Poor Structure

Sections/1K:0.5

Depth:1/5

Structured Data

1 JSON-LD

WebSite

Citation Readiness

Opening Summary

Descriptive Headingsavg 2w

Canonical URL

Open Graph0/3

Twitter Card0/3

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.

84/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

17/20

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

8/15

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.

9/100

488 mg

CO₂e / view

3.9 MB

Page Weight

15%

Cleaner Than

New Visitor

557 mg

Returning (cached)

279 mg

Annual (10K/mo)

58.5 kg

Emission Segments

Data Center

109 mg

Network

117 mg

Device

262 mg

Resource Breakdown

JavaScript

240.5 KB

Images

3.2 MB

CSS

192.1 KB

HTML

245.1 KB

Other

9.5 KB

Green Hosting Not Verified

Kommunale Informationsverarbeitung Baden-Franken

7 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

61%Fair

Interactive

HTTPS

No WAF

87d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

30.04.2026

Valid Until

29.07.2026

Subject Alternative Names (5)

cms.konstanz.dekonstanz.destadt.konstanz.dewww.konstanz.dewww.stadt.konstanz.de

SHA-256 Fingerprint

7B:59:4D:33:7C:DC:FA:AE:98:6B:B2:C8:99:0E:B5:E1:98:A2:27:B4...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

http://veranstaltungen.konstanz.de, https://veranstaltungen....

cache-control

🔴 No Cache(no-store)

connection

Keep-Alive

content-language

content-type

text/html;charset=UTF-8

date

Sun, 03 May 2026 02:34:13 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (4)

mx6.kvnbw.de

mx9.kvnbw.de

mx7.kvnbw.de

mx8.kvnbw.de

Domain Information

konstanz.de

Last Updated

06.11.2018

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

60/100

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

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Roboto Slab

WCAG Partial

66/100

Readability

/30

19/30

18px · LH --

Hierarchy

/20

15/20

1.82x ratio · ✓ H1→H6

WCAG

/25

17/25

1:1 min contrast

Performance

/25

15/25

1 font · 3 req

Heading Font

Roboto Slab

Sans33px

Body Font

Roboto Slab

Sans18px

Contrast Ratio

1:1

3 issues

Reading Comfort

~36 CPL

Narrow lines

33px

38px

45px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 1.0:1).

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

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

9 unique colors

3.01:1 AA Large Light

#b2b2b2

Other· 29.7%

#605f5c

Other· 7.8%

#707e8d

Primary· 12.1%

#202c35

Secondary· 10.9%

#36535e

Secondary· 6.2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(13)konstanz.de(2)statistik.komm.one(1)

Website Identity

Stadt Konstanz

[email protected]

www.konstanz.de/

Location detected: 🇩🇪 Germanyvia tld

Social Profiles

Instagram

Sponsored

Last analyzed: 03 May 2026 at 02:34

Historical Analysis & Change Tracking