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colorline.de

https://colorline.de· First analyzed 22 May 2026· Updated 22 May 2026
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colorline.de
Desktop screenshot of colorline.de
Mobile screenshot of colorline.de
Mobile

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Hosting Provider

BF IS

IP Address

195.225.3.149

Site Location

🇩🇪 Germanyvia tld

Server Location

🇳🇴 Oslo, Norway

ASN

AS25148

CDN

Fastly

Nameservers

dns2.cscdns.net.dns1.cscdns.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
502 ms10%
Speed Index
653 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
804 KB
27 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
BF IS
CDN
Fastly

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

5 Technologies Detected

Advertising

2
Google AdsSnapchat Pixel

CSS Frameworks

1
Tailwind CSS

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

SEO Analysis

C62/100
16
7
2
Meta Tags4/15
Content11/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
C
colorline.decolorline.de

Homepage | Color Line

No description available for this page.

Title Length21 chars

Recommended: 50-60 chars (~126px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (10/10) — critical for accessibility and SEO

9 issues found

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Crawlability

Sitemap

Type: standard

213 URLs

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

3/100
Poor
1 14 2

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

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AI & LLM Readiness

F33/100
Bot Access
20/25
Machine Read.
1/25
Schema Data
0/25
Citation
12/25

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:3,085
Token eff.:Poor Structure
Sections/1K:1.3

Structured Data

No Schema

Citation Readiness

Opening Summary17w
Descriptive Headingsavg 3.4w
Canonical URL
Open Graph2/3
Twitter Card2/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
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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
86/100
16
Passed
1
Critical
4
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
12/15
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
7/15
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.
50/100
B
99 mg
CO₂e / view
804.0 KB
Page Weight
80%
Cleaner Than
New Visitor
114 mg
vs
Returning (cached)
57 mg
Annual (10K/mo)
11.9 kg
Emission Segments
Data Center
22 mg
Network
24 mg
Device
53 mg
Resource Breakdown
JavaScript
571.4 KB
Images
3.5 KB
CSS
101.7 KB
HTML
27.7 KB
Other
99.7 KB
Green Hosting Not Verified
BF IS
5 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

36%Critical
Interactive

HTTPS

No WAF

79d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

09.07.2025

Valid Until

09.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

www.colorline.comacc.colorline.comedea.colorline.comcms-admin.colorline.comoj-admin.colorline.comwww.colorline.nocolorline.nowww.colorline.de+12 more

SHA-256 Fingerprint

AE:33:AA:86:EE:BB:45:22:21:BB:06:11:06:34:C3:0A:F8:39:80:68...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
none
age
21817
connection
Keep-Alive
content-type
text/html; charset=UTF-8
date
Fri, 22 May 2026 13:43:06 GMT
expires
Fri, 22 May 2026 13:58:06 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

colorline-de.mail.protection.outlook.com
ms51387875.msv1.invalid.outlook.com

Domain Information

colorline.de

Last Updated

05.03.2020

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
76/100
Mobile Friendly2 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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Interstate

WCAG Partial
77/100
Readability
/30
25/30

18px · LH 1.50

Hierarchy
/20
20/20

2.67x ratio · ✓ H1→H6

WCAG
/25
19/25

1:1 min contrast

Performance
/25
13/25

1 font · 4 req

Heading Font

Interstate

Sans48px

Body Font

Interstate

Sans18px

Contrast Ratio

1:1

1 issue

Reading Comfort

~34 CPL

Narrow lines
48px
h1
40px
h2
24px
h3
18px
p

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

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

❌ Very complex text: Flesch score 28/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 1 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 2.7x larger than body text.

Buy on MyFontsFlesch 28

Color Palette

5 unique colors
7.95:1 AAA Light
#f6f6f6
Background· 38.3%
#4c4c4c
Other· 31.900000000000002%
#171f28
Primary· 13.9%
#343a41
Secondary· 10.1%

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

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Scripts & Styles

6 Resources

5
Scripts
1
Styles
2
Async
2
Defer

Top Script Sources

local(2)policy.app.cookieinformation.com(2)googletagmanager.com(1)

Website Identity

colorline.de

Location detected: 🇩🇪 Germanyvia tld
📧 Microsoft 365de-DE

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Last analyzed: 22 May 2026 at 13:43

Historical Analysis & Change Tracking

colorline.de Technology Stack - Built With Tailwind CSS, Google Analytics, Google Tag Manager, Google Ads, Snapchat Pixel | StackOptic | StackOptic