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skewed.de

https://skewed.de· First analyzed 10 May 2026· Updated 10 May 2026
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skewed.de
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Mobile

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Hosting Provider

Hetzner
hetzner.com

IP Address

49.12.93.194

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Nuremberg, Germany

ASN

AS24940

Organization

Hetzner

Server

Apache

Nameservers

hydrogen.ns.hetzner.com.oxygen.ns.hetzner.com.helium.ns.hetzner.de.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
801 ms10%
Speed Index
1.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.2 MB
45 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Hetzner

Technology Stack

5 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Icon Libraries

1
Font Awesome

Web Servers

1
Apache

Analytics

1
FullStory

SEO Analysis

C69/100
17
7
1
Meta Tags12/15
Content11/12
Headings6/8
Technical16/21
E-E-A-T5/7
Images1/7
Links2/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
S
skewed.deskewed.de

Inverse Complexity Lab – Inverse Complexity Lab

Research group on inverse problems in complex systems and network science.

Title Length47 chars

Recommended: 50-60 chars (~283px / 580px)

Description Length74 chars

Recommended: 120-160 chars

Issues (1)

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

8 issues found

Upgrade to view details

Local SEO

Local Search Readiness

9/100
Poor
3 13 1

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

D49/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
8/25
Citation
9/25

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:11%
Words:1,124
Token eff.:Optimal
Sections/1K:5.3
Depth:1/5

Structured Data

2 JSON-LD
Person×1.3Organization×1.1WebSite
sameAs entity links

Citation Readiness

Opening Summary53w
Descriptive Headingsavg 2.3w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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.
C
61/100
11
Passed
5
Critical
1
Warnings
Images & Alt Text
3/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
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.
44/100
E
336 mg
CO₂e / view
3.2 MB
Page Weight
30%
Cleaner Than
New Visitor
384 mg
vs
Returning (cached)
192 mg
Annual (10K/mo)
40.3 kg
Emission Segments
Data Center
16 mg
Network
99 mg
Device
221 mg
Resource Breakdown
JavaScript
850.7 KB
Images
1.7 MB
CSS
694.8 KB
HTML
15.2 KB
Green Hosting Verified
Hetzner Online GmbH
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Static / Informational

HTTPS

No WAF

0d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

09.02.2026

Valid Until

10.05.2026

Subject Alternative Names (2)

*.skewed.deskewed.de

SHA-256 Fingerprint

67:F3:01:D9:84:DB:20:93:CC:99:97:98:CE:01:6D:F8:D9:E4:16:77...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-length
15281
content-type
text/html
date
Sun, 10 May 2026 15:36:51 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

73

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mail.skewed.de

Domain Information

skewed.de

Last Updated

18.08.2020

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

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
66/100
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=1.0, user-scalable=yes
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

PT Serif

WCAG Partial
59/100
Readability
/30
17/30

14px · LH 1.50

Hierarchy
/20
13/20

2.22x ratio

WCAG
/25
16/25

3.32:1 min contrast

Performance
/25
13/25

1 font · 5 req

Heading Font

PT Serif

Serif30px

Body Font

PT Serif

Serif14px

Contrast Ratio

3.32:1

24 issues

Reading Comfort

~37 CPL

Narrow lines
30px
h1
13px
h2
22px
h3
14px
p
Minor Second
Scale

❌ Critical: 14px body text is too small. Minimum 14px, recommend 16px+.

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

❌ Very complex text: Flesch score 24/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 24 elements below WCAG AA threshold (min 3.3:1).

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

✅ Strong hierarchy: Headlines are 2.2x larger than body text.

Buy on MyFontsFluid TypeFlesch 24

Color Palette

8 unique colors
16.29:1 AAA Light
#ffffff
Background· 78.30000000000001%
#202020
Other· 7.1%
#411924
Primary· 0.1%

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

27 Resources

17
Scripts
10
Styles
0
Async
0
Defer

Top Script Sources

site_libs(14).(3)

Website Identity

Tiago P. Peixoto

Person
tiago@skewed.de
skewed.de/lab
Location detected: 🇩🇪 Germanyvia tld
en

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Last analyzed: 10 May 2026 at 15:37

Historical Analysis & Change Tracking