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coredump.ch

https://coredump.ch· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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coredump.ch
Desktop screenshot of coredump.ch
Mobile screenshot of coredump.ch
Mobile

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Hosting Provider

Nine Internet Solutions AG

IP Address

94.230.210.85

Site Location

🇨🇭 Switzerlandvia tld

Server Location

🇨🇭 Zurich, Switzerland

ASN

AS29691

Organization

Nine Internet Solutions AG

Server

Nginx

Nameservers

ns7.nine.ch.ns1.coredump.ch.ns6.nine.ch.

Performance

96

Core Web Vitals

Weight

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

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.8.5
cms
Westonv2.2.0Custom
by ThemeTrust.com
View Theme

Technology Stack

11 Technologies Detected

Plugins

3
Js_ComposerRevsliderSpaceapi Widget

Libraries

1
jQueryv3.7.1

UI Components

1
Lightbox

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Web Servers

1
Nginx

Languages

1
PHPv8.3.22

Customer Support

1
Zendesk

SEO Analysis

C67/100
20
6
2
Meta Tags10/15
Content10/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
C
coredump.chcoredump.ch

Coredump – Hacker- und Makerspace in Rapperswil-Jona

No description available for this page.

Title Length52 chars

Recommended: 50-60 chars (~324px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (8/15) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

6 rules

Local SEO

Local Search Readiness

6/100
Poor
2 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

F35/100
Bot Access
19/25
Machine Read.
7/25
Schema Data
0/25
Citation
9/25

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:3%
Words:571
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary66w
Descriptive Headingsavg 2.1w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
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
81/100
13
Passed
2
Critical
1
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
10/15
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
11/15
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.
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.
49/100
B
134 mg
CO₂e / view
1.1 MB
Page Weight
70%
Cleaner Than
New Visitor
153 mg
vs
Returning (cached)
76 mg
Annual (10K/mo)
16.0 kg
Emission Segments
Data Center
30 mg
Network
32 mg
Device
72 mg
Resource Breakdown
JavaScript
271.3 KB
Images
568.4 KB
CSS
218.0 KB
Fonts
4.1 KB
HTML
18.4 KB
Green Hosting Not Verified
Nine Internet Solutions AG
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

51%Poor
Interactive

HTTPS

No WAF

67d

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/2

Valid From

06.04.2026

Valid Until

05.07.2026

Subject Alternative Names (2)

coredump.chwww.coredump.ch

SHA-256 Fingerprint

57:90:8E:1C:29:1E:80:2A:A2:32:B8:1C:84:44:B9:82:68:29:19:72...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-length
18570
content-type
text/html; charset=UTF-8
date
Tue, 28 Apr 2026 06:50:13 GMT
link
<https://www.coredump.ch/wp-json/>; rel="https://api.w.org/"...
referrer-policy
no-referrer-when-downgrade
Good Warning Issue

Email Infrastructure

Fastmail

Score

45

SPF
DKIM
DMARC

MX Records (2)

in2-smtp.messagingengine.com
in1-smtp.messagingengine.com

Domain Information

coredump.ch

DNSSEC
Not Enabled

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 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

Open Sans + Quicksand

WCAG Partial
66/100
Readability
/30
18/30

18px · LH 1.80

Hierarchy
/20
17/20

1.93x ratio · ✓ H1→H6

WCAG
/25
17/25

2.05:1 min contrast

Performance
/25
14/25

3 fonts · 4 req

Heading Font

Open Sans

Sans34px

Body Font

Quicksand

Sans18px

Contrast Ratio

2.05:1

45 issues

Reading Comfort

~33 CPL

Narrow lines
34px
h1
36px
h2
40px
h3
18px
p
Minor Second
Scale

✅ Excellent readability: 18px body text is ideal for all devices.

❌ Very complex text: Flesch score 28/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 45 elements below WCAG AA threshold (min 2.0:1).

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

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

GGoogle FontsBuy on MyFontsFluid Type (rem)Flesch 28

Color Palette

12 unique colors
19.56:1 AAA Light
#ffffff
Background· 71.5%
#0c0c0c
Text· 3.8%
#92816f
Primary· 2.8%
#2c2520
Secondary· 2.5%
#564c40
Secondary· 2.4%
#493524
Secondary· 2%
#8b684b
Secondary· 2%

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

30 Resources

20
Scripts
10
Styles
2
Async
2
Defer

Top Script Sources

coredump.ch(20)

Website Identity

coredump.ch

Location detected: 🇨🇭 Switzerlandvia tld
📧 Fastmailde-CH

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Last analyzed: 28 Apr 2026 at 06:50

Historical Analysis & Change Tracking