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ruhr.social

https://ruhr.social· First analyzed 13 May 2026· Updated 13 May 2026
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ruhr.social
Desktop screenshot of ruhr.social
Mobile screenshot of ruhr.social
Mobile

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Hosting Provider

NETCUP-GMBH

IP Address

46.38.239.248

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Nuremberg, Germany

ASN

AS197540

Organization

NETCUP-GMBH

Server

Mastodon

Nameservers

ns4.dnsimple-edge.org.ns1.dnsimple-edge.com.ns2.dnsimple-edge.net.ns3.dnsimple-edge.io.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
1.0 s10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.5 MB
101 requests

Image Optimization

WebPAVIFResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
NETCUP-GMBH

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

1 Technologies Detected

CSS Frameworks

1
Tailwind CSS

SEO Analysis

D57/100
16
7
1
Meta Tags9/15
Content5/12
Headings7/8
Technical14/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
R
ruhr.socialruhr.social

About - ruhr.social

Eine Mastodon-Gemeinschaft rund um das Ruhrgebiet und die Menschen dort. Diese Instanz wird ehrenamtlich von Enthusiasten moderiert und technisch betreut.

Title Length19 chars

Recommended: 50-60 chars (~111px / 580px)

Description Length154 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (4/4) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

6 rules

Local SEO

Local Search Readiness

9/100
Poor
3 13 2

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

Sponsored

AI & LLM Readiness

F32/100
Bot Access
19/25
Machine Read.
2/25
Schema Data
0/25
Citation
11/25

AI Bot Access

13/14 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:4%
Words:266
Token eff.:Too Short
Sections/1K:7.5

Structured Data

No Schema

Citation Readiness

Opening Summary55w
Descriptive Headingsavg 1w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
B
70/100
11
Passed
5
Critical
2
Warnings
Images & Alt Text
18/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
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
2/15
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.
62/100
C
159 mg
CO₂e / view
1.5 MB
Page Weight
60%
Cleaner Than
New Visitor
182 mg
vs
Returning (cached)
91 mg
Annual (10K/mo)
19.1 kg
Emission Segments
Data Center
8 mg
Network
47 mg
Device
105 mg
Resource Breakdown
JavaScript
721.0 KB
Images
1.4 KB
CSS
826.7 KB
HTML
16.4 KB
Other
10.1 KB
Green Hosting Verified
netcup GmbH
GWF Verified
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

68d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

22.04.2026

Valid Until

21.07.2026

Subject Alternative Names (1)

ruhr.social

SHA-256 Fingerprint

B0:3B:9D:D6:67:5B:0A:C7:E0:4D:6C:37:97:68:5A:71:B9:8E:B0:52...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=2592000
cache-control
🟡 15s(max-age=15, public, stale-while-revalidate=30, stale-if-erro...)
content-encoding
📦 Gzip(gzip)
content-security-policy
base-uri 'none'; default-src 'none'; frame-ancestors 'none';...
content-type
text/html; charset=utf-8
date
Wed, 13 May 2026 10:22:05 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (3)

mxext3.mailbox.org
mxext2.mailbox.org
mxext1.mailbox.org

Domain Information

ruhr.social

Domain Age
8y 5m

Created

08.12.2017

Expires

08.12.2026

Last Updated

12.05.2026

Registrar

1API GmbH

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked
Data Protection Officer mentioned

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.
C
67/100
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, viewport-fit=cover
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

mastodon-font-sans-serif

WCAG Partial
65/100
Readability
/30
20/30

15px · LH 1.47

Hierarchy
/20
13/20

1.6x ratio

WCAG
/25
16/25

1:1 min contrast

Performance
/25
16/25

1 font · 4 req

Heading Font

mastodon-font-sans-serif

Sans24px

Body Font

mastodon-font-sans-serif

Sans15px

Contrast Ratio

1:1

21 issues

Reading Comfort

~37 CPL

Narrow lines
24px
h1
19px
h2
15px
h4
15px
p

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.47 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 45/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 21 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

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

Buy on MyFontsFluid TypeFlesch 45

Color Palette

5 unique colors
Dark
#535353
Other· 17.7%
#181820
Primary· 70.19999999999999%
#4b799b
Secondary· 5%
#272632
Secondary· 4.4%

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

8 Resources

3
Scripts
5
Styles
0
Async
0
Defer

Top Script Sources

local(3)

Website Identity

ruhr.social

contact@ruhr.social
8 years old
Location detected: 🇩🇪 Germanyvia ip
1API GmbHen-GB

Social Profiles

GitHub

Sponsored

Last analyzed: 13 May 2026 at 10:22

Historical Analysis & Change Tracking