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code.systems

https://code.systems· First analyzed 11 May 2026· Updated 11 May 2026
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code.systems
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Mobile

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Hosting Provider

Hetzner
hetzner.com

IP Address

162.55.191.89

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Nuremberg, Germany

ASN

AS24940

Organization

Hetzner

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

oswald.ns.cloudflare.com.wanda.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
376 ms10%
Speed Index
489 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1 MB
14 requests

Image Optimization

WebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.1
cms
Twenty Twenty-Fourv1.4
by the WordPress team
View Theme

Technology Stack

6 Technologies Detected

Plugins

3
WPML
Yoast SEO
WPML

Libraries

1
jQueryv3.7.1

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginx

SEO Analysis

C63/100
17
9
1
Meta Tags4/15
Content10/12
Headings8/8
Technical20/25
E-E-A-T0/7
Images5/7
Links2/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
C
code.systemscode.systems

<code.systems> -

No description available for this page.

Title Length16 chars

Recommended: 50-60 chars (~99px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

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

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

2 URLs

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

10/100
Poor
3 13 1

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

Sponsored

AI & LLM Readiness

D46/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
3/25
Citation
10/25

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
navheader/footer
Text ratio:3%
Words:1,122
Token eff.:Optimal
Sections/1K:13.4
Depth:2/5

Structured Data

1 JSON-LD
WebSiteSearchAction

Citation Readiness

Opening Summary21w
Descriptive Headingsavg 2.3w
Canonical URL
Open Graph1/3
Twitter Card2/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
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.
A
88/100
13
Passed
1
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
12/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
15/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

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.
73/100
B
104 mg
CO₂e / view
1.0 MB
Page Weight
70%
Cleaner Than
New Visitor
119 mg
vs
Returning (cached)
59 mg
Annual (10K/mo)
12.5 kg
Emission Segments
Data Center
5 mg
Network
31 mg
Device
68 mg
Resource Breakdown
JavaScript
51.2 KB
Images
384.1 KB
CSS
566.3 KB
HTML
27.9 KB
Green Hosting Verified
Hetzner Online GmbH
GWF Verified
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

46%Poor
Interactive

HTTPS

No WAF

43d

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/2

Valid From

26.03.2026

Valid Until

24.06.2026

Subject Alternative Names (2)

code.systemsde.code.systems

SHA-256 Fingerprint

2E:20:0E:86:A1:A6:0F:14:AD:B0:DA:53:C2:05:6F:C4:6A:A7:E3:9D...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
date
Mon, 11 May 2026 18:25:32 GMT
expires
Thu, 19 Nov 1981 08:52:00 GMT
link
<https://code.systems/wp-json/>; rel="https://api.w.org/"
Good Warning Issue

Email Infrastructure

Google Workspace

Score

20

SPF
DKIM
DMARC

MX Records (5)

ALT2.ASPMX.L.GOOGLE.com
alt1.ASPMX.L.GOOGLE.com
ASPMX.L.GOOGLE.com
ASPMX2.GOOGLEMAIL.com

+1 more

Domain Information

code.systems

Domain Age
12y 1m

Created

19.03.2014

Expires

19.03.2027

Last Updated

22.02.2026

Registrar

Cloudflare, Inc

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
76/100
Mobile Friendly10 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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Cardo + Inter

WCAG AAA
84/100
Readability
/30
23/30

17px · LH 1.55

Hierarchy
/20
16/20

2.38x ratio · ✓ H1→H6

WCAG
/25
25/25

7.58:1 min contrast

Performance
/25
20/25

2 fonts · 3 req

Heading Font

Cardo

Serif40px

Body Font

Inter

Sans17px

Contrast Ratio

7.58:1

WCAG AAA (≥7:1)

Reading Comfort

~34 CPL

Narrow lines
40px
h1
40px
h2
30px
h3
17px
p

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Optimal line spacing: 1.55 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 20/100. Consider shorter sentences and simpler words.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 7.6:1).

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

✅ Strong hierarchy: Headlines are 2.4x larger than body text.

Buy on MyFontsFluid Type (rem)Flesch 20

Color Palette

9 unique colors
Light
#f9f9f9
Background· 66.6%
#89a6c2
Primary· 11.8%
#635746
Secondary· 5.3%
#9b8b78
Secondary· 4.6%
#342b20
Secondary· 4%
#a9b7ca
Secondary· 2.4%
#7c92a3
Secondary· 0.7%

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

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Scripts & Styles

6 Resources

5
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

code.systems(5)

Website Identity

<code.systems>

code.systems/
12 years old
Location detected: 🇩🇪 Germanyvia ip
Cloudflare, Inc📧 Google Workspacede-DE

Sponsored

Last analyzed: 11 May 2026 at 18:25

Historical Analysis & Change Tracking