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openthesaurus.de

https://openthesaurus.de· First analyzed 06 May 2026· Updated 06 May 2026
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openthesaurus.de
Desktop screenshot of openthesaurus.de
Mobile screenshot of openthesaurus.de
Mobile

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Hosting Provider

Hetzner
hetzner.com

IP Address

49.13.60.49

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Falkenstein, Germany

ASN

AS24940

Organization

Hetzner

Server

Nginx

CDN

Bunny

Nameservers

kiki.bunny.net.coco.bunny.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
482 ms10%
Speed Index
627 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
257 KB
13 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Hetzner
CDN
Bunny

Technology Stack

2 Technologies Detected

Analytics

1
Plausible Analytics

Web Servers

1
Nginxv1.18.0

SEO Analysis

D46/100
12
7
2
Meta Tags12/15
Content3/12
Headings0/8
Technical10/21
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
O
openthesaurus.deopenthesaurus.de

Synonyme - OpenThesaurus - Deutscher Thesaurus

Freies deutsches Wörterbuch für Synonyme, Gegenwörter und Assoziationen. Mehr als 100.000 Wörter.

Title Length46 chars

Recommended: 50-60 chars (~290px / 580px)

Description Length97 chars

Recommended: 120-160 chars

Issues (2)

  • • Very thin content (34 words). Search engines need substantial content for ranking.
  • • Missing H1 tag — every page should have exactly one H1

9 issues found

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Local SEO

Local Search Readiness

3/100
Poor
1 14 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

F28/100
Bot Access
20/25
Machine Read.
2/25
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:2%
Words:28
Token eff.:Too Short
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headings
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...
Upgrade to view recommendations

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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
68/100
8
Passed
4
Critical
0
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
10/20
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.
71/100
A+
26 mg
CO₂e / view
257.0 KB
Page Weight
95%
Cleaner Than
New Visitor
30 mg
vs
Returning (cached)
15 mg
Annual (10K/mo)
3.1 kg
Emission Segments
Data Center
1 mg
Network
8 mg
Device
17 mg
Resource Breakdown
JavaScript
104.8 KB
Images
135.1 KB
CSS
11.4 KB
HTML
5.6 KB
Green Hosting Verified
Hetzner Online GmbH
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

89d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.05.2026

Valid Until

04.08.2026

Subject Alternative Names (1)

www.openthesaurus.de

SHA-256 Fingerprint

49:B6:A5:D9:F2:87:81:C0:E4:CB:A2:51:4A:25:28:4D:73:75:BA:38...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-language
de
content-type
text/html;charset=UTF-8
date
Wed, 06 May 2026 17:52:53 GMT
server
nginx/1.18.0 (Ubuntu)
x-application-context
application:production
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

MX Records (3)

mxext3.mailbox.org
mxext1.mailbox.org
mxext2.mailbox.org

Domain Information

openthesaurus.de

Last Updated

09.06.2025

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.
D
47/100
Not Mobile Friendly
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
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Arial

WCAG Fail
58/100
Readability
/30
13/30

10px · LH --

Hierarchy
/20
10/20
WCAG
/25
15/25

1:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

Arial

Body Font

Arial

Sans10px

Contrast Ratio

1:1

24 issues

Reading Comfort

Single Family

left aligned
10px
p

❌ Critical: 10px body text is too small. Minimum 14px, recommend 16px+.

❌ Low contrast: 24 elements fail WCAG AA (min 1.0:1). Increase text/background contrast.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

6 unique colors
Light
#f7f7f7
Background· 71.89999999999999%
#0363ba
Primary· 20.999999999999996%
#494054
Secondary· 2.8%
#cad6de
Secondary· 2.5%
#2363a2
Accent· 0.3%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
PlausibleSMB
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

3 Resources

2
Scripts
1
Styles
0
Async
1
Defer

Top Script Sources

local(1)plausible.io(1)

Website Identity

openthesaurus.de

Location detected: 🇩🇪 Germanyvia tld
de

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Last analyzed: 06 May 2026 at 17:53

Historical Analysis & Change Tracking