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ihk-koeln.de

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

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Hosting Provider

OVHcloud
ovhcloud.com

IP Address

51.38.104.145

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Limburg an der Lahn, Germany

ASN

AS16276

Organization

OVH GmbH

Server

Nginx

Nameservers

ns1.ihk.de.b.ns14.net.c.ns14.net.ns2.ihk.de.+1 more

Performance

88

Core Web Vitals

Weight

First Contentful Paint
1.6 s10%
Speed Index
2.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.6 MB
52 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
OVHcloud

Technology Stack

4 Technologies Detected

Other

1
Highcharts

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Web Servers

1
Nginx

SEO Analysis

B71/100
21
6
1
Meta Tags4/15
Content10/12
Headings8/8
Technical23/25
E-E-A-T2/7
Images5/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
I
ihk-koeln.deihk-koeln.de

Startseite - IHK Köln

No description available for this page.

Title Length21 chars

Recommended: 50-60 chars (~123px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

62 URLs

62 sub-sitemaps

robots.txt

32 rules

Sitemap reference found

Local SEO

Local Search Readiness

36/100
Needs Work
10 10

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AI & LLM Readiness

D41/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
3/25
Citation
11/25

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:3%
Words:886
Token eff.:Optimal

Structured Data

1 JSON-LD
Organization×1.1
sameAs entity links

Citation Readiness

Opening Summary612w
Descriptive Headingsavg 2w
Canonical URL
Open Graph3/3
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

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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
88/100
15
Passed
1
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
7/15
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.
43/100
F
480 mg
CO₂e / view
4.6 MB
Page Weight
15%
Cleaner Than
New Visitor
548 mg
vs
Returning (cached)
274 mg
Annual (10K/mo)
57.5 kg
Emission Segments
Data Center
24 mg
Network
141 mg
Device
315 mg
Resource Breakdown
JavaScript
509.7 KB
Images
3.7 MB
CSS
203.8 KB
Fonts
214.0 KB
HTML
8.9 KB
Other
2.4 KB
Green Hosting Verified
OVHcloud
GWF Verified
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

86%Very Good
Interactive

HTTPS

No WAF

161d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

D-Trust GmbH

Key Algorithm

RSA (4096 bit)

Signature

SHA-512 with RSA

TLS Version

TLSv1.3

Valid From

07.04.2026

Valid Until

22.10.2026

Subject Alternative Names (2)

ihk.dewww.ihk.de

SHA-256 Fingerprint

3A:1F:CF:54:4D:B7:EC:51:7E:78:9B:C9:30:54:5C:81:D3:7C:D5:AD...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection
keep-alive
content-type
text/html;charset=UTF-8
date
Wed, 13 May 2026 17:17:19 GMT
server
nginx
transfer-encoding
chunked
cache-control
🔴 No Cache(no-cache, private)
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

20

SPF
DKIM
DMARC

MX Records (3)

mx01.ihk.de
mx04.ihk.de
mx02.ihk.de

Domain Information

ihk-koeln.de

Last Updated

12.02.2026

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.
B
75/100
Mobile Friendly
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...
Upgrade to view recommendations

Typography & Readability

Korb + Source Sans Pro

WCAG Partial
65/100
Readability
/30
19/30

14px · LH 1.40

Hierarchy
/20
16/20

4.57x ratio · ✓ H1→H6

WCAG
/25
14/25

1:1 min contrast

Performance
/25
16/25

2 fonts · 13 req

Heading Font

Korb

Sans64px

Body Font

Source Sans Pro

Sans14px

Contrast Ratio

1:1

2 issues

Reading Comfort

~34 CPL

Narrow lines
64px
h1
42px
h2
14px
p

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 35/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 4.6x larger than body text.

Buy on MyFontsFlesch 35

Color Palette

12 unique colors
4.86:1 AA Light
#ffffff
Background· 21%
#6a727e
Secondary· 6.3%
#102643
Primary· 22.3%
#e9f0f7
Secondary· 9.8%
#24417a
Accent· 6.9%
#738b99
Secondary· 6.8%
#0e1429
Secondary· 5.9%
#34384e
Secondary· 5.7%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
CookiebotMid-Market

Cookie consent and privacy compliance tools

2

Categories

2

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

17 Resources

11
Scripts
6
Styles
5
Async
0
Defer

Top Script Sources

local(4)ihk24.epccm19.com(2)plugins.flockler.com(2)code.etracker.com(2)etracker.de(1)

Website Identity

Industrie- und Handelskammer zu Köln

Organization
service@koeln.ihk.de
02211640-0

Unter Sachsenhausen 5–7<br>(Eingang: Komödienstraße 18–24), Köln

50667, Köln

Location detected: 🇩🇪 Germanyvia tld
de

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Last analyzed: 13 May 2026 at 17:17

Historical Analysis & Change Tracking