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selfhtml.org

https://selfhtml.org· First analyzed 25 Apr 2026· Updated 25 Apr 2026
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selfhtml.org
Desktop screenshot of selfhtml.org
Mobile screenshot of selfhtml.org
Mobile

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Hosting Provider

manitu GmbH

IP Address

89.238.67.49

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Sankt Wendel, Germany

ASN

AS34240

Organization

manitu GmbH

Server

Apache

Nameservers

dns01.manitu.net.dns02.manitu.net.

Performance

86

Core Web Vitals

Weight

First Contentful Paint
1.7 s10%
Speed Index
2.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
378 KB
29 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
manitu GmbH

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Apache

Languages

1
PHPv7.0.33

SEO Analysis

D52/100
15
10
1
Meta Tags4/15
Content8/12
Headings8/8
Technical13/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
S
selfhtml.orgselfhtml.org

SELFHTML-Wiki

No description available for this page.

Title Length13 chars

Recommended: 50-60 chars (~81px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

11 issues found

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Crawlability

Sitemap
robots.txt

8 rules

Local SEO

Local Search Readiness

5/100
Poor
2 13 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

F37/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
Citation
6/25

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:6%
Words:451
Token eff.:Optimal
Sections/1K:28.8
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary12w
Descriptive Headingsavg 1.3w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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
82/100
14
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
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
14/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
8/15
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.
1 recommendation
  • •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.
86/100
A+
38 mg
CO₂e / view
378.3 KB
Page Weight
90%
Cleaner Than
New Visitor
44 mg
vs
Returning (cached)
22 mg
Annual (10K/mo)
4.6 kg
Emission Segments
Data Center
2 mg
Network
11 mg
Device
25 mg
Resource Breakdown
JavaScript
105.8 KB
Images
181.0 KB
CSS
49.0 KB
HTML
7.3 KB
Other
35.3 KB
Green Hosting Verified
manitu GmbH
GWF Verified
F

Security Score

31%Critical
Interactive

HTTPS

No WAF

83d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp384r1) (384 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

19.04.2026

Valid Until

18.07.2026

Subject Alternative Names (12)

de.selfhtml.orgforum.de.selfhtml.orgintern.selfhtml.orgmail.selfhtml.orgphp.wiki.selfhtml.orgselfhtml.orgsrc.selfhtml.orgsuche.de.selfhtml.org+4 more

SHA-256 Fingerprint

0B:23:D6:C9:C5:61:00:A0:9F:C7:32:AE:75:C9:4C:20:9A:FD:89:C0...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 0s(private, must-revalidate, max-age=0)
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-language
de-formal
content-length
7191
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

50

SPF
DKIM
DMARC

MX Records (1)

mail.selfhtml.org

Domain Information

selfhtml.org

Domain Age
25y 6m

Created

25.10.2000

Expires

25.10.2026

Last Updated

09.12.2025

Registrar

InterNetX GmbH

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

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
72/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Nunito + Segoe UI

WCAG AA
80/100
Readability
/30
23/30

18px · LH 1.50

Hierarchy
/20
16/20

2.25x ratio · ✓ H1→H6

WCAG
/25
21/25

5.07:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

Nunito

Sans41px

Body Font

Segoe UI

Sans18px

Contrast Ratio

5.07:1

WCAG AA (≥4.5:1)

Reading Comfort

~36 CPL

Narrow lines
41px
h1
28px
h2
15px
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).

⚠️ Hard to read: Flesch score 44/100. Simplify sentences for wider reach.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.1:1).

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

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

Buy on MyFontsFlesch 44

Color Palette

7 unique colors
2.61:1 Fail Light
#ffffff
Background· 70.2%
#9da1a0
Other· 4.4%
#406d89
Primary· 6.1%
#c0c9cc
Secondary· 4.3%
#5f889b
Secondary· 1.8%

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

5 Resources

2
Scripts
3
Styles
1
Async
0
Defer

Top Script Sources

local(2)

Website Identity

selfhtml.org

[email protected]
25 years old
Location detected: 🇩🇪 Germanyvia ip
InterNetX GmbHde-x-formal

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Last analyzed: 25 Apr 2026 at 11:05

Historical Analysis & Change Tracking

selfhtml.org Technology Stack - Built With Tailwind CSS, Apache, PHP | StackOptic | StackOptic