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ffe.de

https://ffe.de· First analyzed 22 May 2026· Updated 22 May 2026
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ffe.de
Desktop screenshot of ffe.de
Mobile screenshot of ffe.de
Mobile

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Hosting Provider

Host Europe GmbH

IP Address

92.205.55.242

Site Location

🇩🇪 Germanyvia phone

Server Location

🇫🇷 Strasbourg, France

ASN

AS21499

Organization

Host Europe GmbH

Server

Nginx

Nameservers

ns82.domaincontrol.com.ns81.domaincontrol.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
579 ms10%
Speed Index
753 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1013 KB
45 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
WordPress
Infrastructure
Hosting
Host Europe GmbH

Technology Stack

10 Technologies Detected

Plugins

6
Ultimate BlocksCollapse Magic
Contact Form 7
Double Opt In For Cf7Borlabs Cookie
Yoast SEO

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginx

Security

1
reCAPTCHA

SEO Analysis

B77/100
23
6
1
Meta Tags9/15
Content11/12
Headings6/8
Technical25/25
E-E-A-T2/7
Images2/7
Links2/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
F
ffe.deffe.de

icon-bluesky

Die FfE forscht und berät unabhängig und energieträgerneutral zu relevanten energietechnischen und energiewirtschaftlichen Themen.

Title Length12 chars

Recommended: 50-60 chars (~70px / 580px)

Description Length130 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (17/19) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

22 URLs

22 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

34/100
Needs Work
10 8

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AI & LLM Readiness

D53/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
8/25
Citation
14/25

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:7%
Words:892
Token eff.:Optimal
Sections/1K:2.2
Depth:2/5

Structured Data

4 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary52w
Descriptive Headingsavg 2.5w
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
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.
B
74/100
11
Passed
4
Critical
3
Warnings
Images & Alt Text
15/20
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
12/15
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
10/15
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.
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.
52/100
B
125 mg
CO₂e / view
1012.7 KB
Page Weight
70%
Cleaner Than
New Visitor
143 mg
vs
Returning (cached)
72 mg
Annual (10K/mo)
15.0 kg
Emission Segments
Data Center
28 mg
Network
30 mg
Device
67 mg
Resource Breakdown
JavaScript
381.8 KB
Images
39.0 KB
CSS
548.1 KB
HTML
15.7 KB
Other
28.2 KB
Green Hosting Not Verified
Host Europe GmbH
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

170d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Starfield Technologies, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

20.10.2025

Valid Until

08.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.ffe.deffe.de

SHA-256 Fingerprint

3A:3C:95:D1:8B:6F:85:62:2F:68:D2:BB:96:38:4D:70:28:23:CA:B6...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=UTF-8
date
Fri, 22 May 2026 01:21:57 GMT
link
<https://www.ffe.de/wp-json/>; rel="https://api.w.org/", <ht...
server
nginx
vary
Accept-Encoding
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

95

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

ffe-de.mail.protection.outlook.com

Domain Information

ffe.de

Last Updated

18.05.2022

DNSSEC
Not Enabled

Privacy & Compliance

Borlabs Cookie

Cookie Consent Banner
Borlabs Cookie
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Borlabs Cookie
Privacy policy page linked
Legitimate interest basis 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
67/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

SegoeUI

WCAG Partial
72/100
Readability
/30
20/30

16px · LH 1.63

Hierarchy
/20
16/20

2.25x ratio

WCAG
/25
16/25

1:1 min contrast

Performance
/25
20/25

1 font · 3 req

Heading Font

SegoeUI

Sans36px

Body Font

SegoeUI

Sans16px

Contrast Ratio

1:1

22 issues

Reading Comfort

~42 CPL

Narrow lines
36px
h1
21px
h2
22px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

❌ Very complex text: Flesch score 2/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 22 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

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

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 2

Color Palette

7 unique colors
Light
#ffffff
Background· 21.4%
#4d7195
Secondary· 39.10000000000001%
#1d4266
Accent· 17.5%
#469ad2
Primary· 8%
#305578
Secondary· 7.6%
#dfe6e9
Secondary· 4.9%
#388ac4
Primary· 1.5%

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

20 Resources

12
Scripts
8
Styles
0
Async
1
Defer

Top Script Sources

ffe.de(12)

Website Identity

FfE München

FfE München

Organization

Die FfE forscht und berät unabhängig und energieträgerneutral zu relevanten energietechnischen und energiewirtschaftlichen Themen.

info@ffe.de
+49 (0)89 158121-0
www.ffe.de/
Location detected: 🇩🇪 Germanyvia phone
📧 Microsoft 365de_DE

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Last analyzed: 22 May 2026 at 01:22

Historical Analysis & Change Tracking