StackOptic
Back to Search
nerdculture.de favicon

nerdculture.de

https://nerdculture.de· First analyzed 12 May 2026· Updated 12 May 2026
Export
nerdculture.de
Desktop screenshot of nerdculture.de
Mobile screenshot of nerdculture.de
Mobile

Sponsored

Hosting Provider

rrbone GmbH

IP Address

31.172.31.250

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Dortmund, Germany

ASN

AS50629

Organization

rrbone GmbH

Server

Mastodon

Nameservers

ns.windfluechter.net.ns1.ownisp.de.ns2.ownisp.de.

Performance

80

Core Web Vitals

Weight

First Contentful Paint
2.2 s10%
Speed Index
2.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.4 MB
120 requests

Image Optimization

Lazy LoadWebPAVIFResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
rrbone GmbH

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

1 Technologies Detected

CSS Frameworks

1
Tailwind CSS

SEO Analysis

C61/100
19
9
1
Meta Tags8/15
Content6/12
Headings5/8
Technical14/25
E-E-A-T3/7
Images3/7
Links5/5
URL5/5
Social3/5
Freshness2/4
Mobile4/4
Indexability3/3
N
nerdculture.denerdculture.de

Trending - NerdCulture

Be excellent to each other, live humanism, no nazis, no hate speech. Not only for nerds, but the domain is somewhat cool. ;) No bots in general. Languages: D...

Description truncated.
Title Length22 chars

Recommended: 50-60 chars (~132px / 580px)

Description Length178 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (7/10) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

6 rules

Local SEO

Local Search Readiness

4/100
Poor
1 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

D42/100
Bot Access
19/25
Machine Read.
10/25
Schema Data
0/25
Citation
13/25

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:377
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary69w
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
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.
52/100
C
171 mg
CO₂e / view
1.4 MB
Page Weight
60%
Cleaner Than
New Visitor
195 mg
vs
Returning (cached)
98 mg
Annual (10K/mo)
20.5 kg
Emission Segments
Data Center
38 mg
Network
41 mg
Device
92 mg
Resource Breakdown
JavaScript
733.6 KB
Images
2.2 KB
CSS
615.5 KB
HTML
16.1 KB
Other
15.1 KB
Green Hosting Not Verified
rrbone GmbH
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

72d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp384r1) (384 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

25.04.2026

Valid Until

24.07.2026

Subject Alternative Names (2)

media.nerdculture.denerdculture.de

SHA-256 Fingerprint

46:17:76:15:BF:2E:B1:4F:9B:7B:07:B9:D6:E4:BB:5A:70:6E:40:75...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

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
Tue, 12 May 2026 17:31:48 GMT
etag
W/"19a7a2da56007fc7120a0ba6ef118c37"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (3)

mail1.windfluechter.net
mail2.windfluechter.net
mailgw.windfluechter.net

Domain Information

nerdculture.de

Last Updated

01.01.2026

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.
B
73/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

mastodon-font-sans-serif

WCAG Partial
68/100
Readability
/30
22/30

15px · LH 1.47

Hierarchy
/20
12/20

1.07x ratio · ✓ H1→H6

WCAG
/25
16/25

1:1 min contrast

Performance
/25
18/25

1 font · 3 req

Heading Font

mastodon-font-sans-serif

Sans16px

Body Font

mastodon-font-sans-serif

Sans15px

Contrast Ratio

1:1

14 issues

Reading Comfort

~38 CPL

Narrow lines
16px
h1
13px
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).

⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

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

Buy on MyFontsFluid Type

Color Palette

6 unique colors
Light
#858a95
Other· 4%
#181820
Primary· 78.7%
#262c3d
Secondary· 6.300000000000001%
#3a3a4c
Border· 4.9%
#53577c
Secondary· 3.7%

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

Sponsored

Scripts & Styles

8 Resources

3
Scripts
5
Styles
0
Async
0
Defer

Top Script Sources

local(3)

Website Identity

nerdculture.de

Location detected: 🇩🇪 Germanyvia tld
en-GB

Social Profiles

GitHub

Sponsored

Last analyzed: 12 May 2026 at 17:32

Historical Analysis & Change Tracking