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c-base.org

https://c-base.org· First analyzed 12 May 2026· Updated 12 May 2026
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c-base.org
Desktop screenshot of c-base.org
Mobile screenshot of c-base.org
Mobile

Sponsored

Hosting Provider

IN-BERLIN

IP Address

217.197.86.189

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Berlin, Germany

ASN

AS29670

Server

Apache

Nameservers

cns.c-base.org.boo.sig21.net.

Performance

96

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
720 KB
15 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
IN-BERLIN

Technology Stack

3 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Normalize.css

Web Servers

1
Apachev2.4.66

SEO Analysis

D48/100
11
10
1
Meta Tags8/15
Content7/12
Headings3/8
Technical9/21
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
C
c-base.orgc-base.org

c-base >>> Raumstation unter Berlin

c-base is the oldest crashed space station on earth.

Title Length35 chars

Recommended: 50-60 chars (~213px / 580px)

Description Length52 chars

Recommended: 120-160 chars

Issues (1)

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

11 issues found

Upgrade to view details

Local SEO

Local Search Readiness

0/100
Poor
15 2

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

Sponsored

AI & LLM Readiness

F26/100
Bot Access
20/25
Machine Read.
4/25
Schema Data
0/25
Citation
2/25

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:9%
Words:158
Token eff.:Too Short
Sections/1K:19
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 1w
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...
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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.
B
73/100
9
Passed
4
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
10/20
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
4/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 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.
51/100
B
89 mg
CO₂e / view
719.6 KB
Page Weight
80%
Cleaner Than
New Visitor
102 mg
vs
Returning (cached)
51 mg
Annual (10K/mo)
10.7 kg
Emission Segments
Data Center
20 mg
Network
21 mg
Device
48 mg
Resource Breakdown
JavaScript
80.8 KB
Images
12.6 KB
CSS
624.5 KB
HTML
1.8 KB
Green Hosting Not Verified
IN-BERLIN
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Static / Informational

HTTPS

No WAF

62d

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

14.04.2026

Valid Until

13.07.2026

Subject Alternative Names (20)

audioblog.c-base.orgbeat.c-base.orgc-base.dec-base.orgc-portal.c-base.orgcbag3.c-base.orgcmip.c-base.orgcoredump.c-base.org+12 more

SHA-256 Fingerprint

2D:84:2E:F6:C8:9D:67:61:E2:01:C0:E5:53:BA:DD:B1:14:2E:A9:B1...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
content-encoding
📦 Gzip(gzip)
content-length
1532
content-type
text/html; charset=utf-8
date
Tue, 12 May 2026 09:30:09 GMT
etag
"1247-641ae1e29a884-gzip"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

20

SPF
DKIM
DMARC

MX Records (1)

c-mail.c-base.org

Domain Information

c-base.org

Domain Age
30y 5m

Created

08.12.1995

Expires

07.12.2026

Last Updated

21.01.2026

Registrar

Key-Systems GmbH

DNSSEC
Not Enabled

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
56/100
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

lucida console + Helvetica

WCAG Fail
55/100
Readability
/30
23/30

16px · LH 1.30

Hierarchy
/20
6/20
WCAG
/25
12/25

1.21:1 min contrast

Performance
/25
14/25

2 fonts

Heading Font

lucida console

Sans

Body Font

Helvetica

Sans16px

Contrast Ratio

1.21:1

46 issues

Reading Comfort

~39 CPL

Narrow lines
24px
h2
16px
p

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

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

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

❌ Low contrast: 46 elements fail WCAG AA (min 1.2:1). Increase text/background contrast.

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

✅ Lean font stack: 2 font families keeps load times fast.

Buy on MyFontsFlesch 32

Color Palette

7 unique colors
3.98:1 AA Large Dark
#000000
Background· 41.1%
#676d6c
Other· 5.7%
#1c252c
Primary· 34.9%
#7ab6ce
Secondary· 4.1%
#ceecf2
Accent· 3.1%

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

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Scripts & Styles

6 Resources

3
Scripts
3
Styles
0
Async
0
Defer

Top Script Sources

static(2)c-base.org(1)

Website Identity

c-base.org

30 years old
Location detected: 🇩🇪 Germanyvia ip
Key-Systems GmbH

Sponsored

Last analyzed: 12 May 2026 at 09:30

Historical Analysis & Change Tracking