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alfen.com

https://alfen.com· First analyzed 16 May 2026· Updated 16 May 2026
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alfen.com
Desktop screenshot of alfen.com
Mobile screenshot of alfen.com
Mobile

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Hosting Provider

Microsoft Azure
azure.microsoft.com

IP Address

13.107.246.67

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS8075

Organization

Microsoft Corporation

CDN

CDN

Nameservers

nsauth2.introweb.nl.nsauth3.introweb.net.nsauth1.introweb.nl.

Performance

93

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.2 MB
63 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Infrastructure
Hosting
Microsoft Azure
CDN
CDN

Technology Stack

5 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

SEO Analysis

B73/100
23
5
1
Meta Tags11/15
Content10/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
A
alfen.comalfen.com

Alfen - Power to Adapt | Alfen

Alfen, founded in 1937, provides smart energy solutions to accelerate the transition to sustainable energy. Discover our reliable and innovative products. Le...

Description truncated.
Title Length30 chars

Recommended: 50-60 chars (~182px / 580px)

Description Length166 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (11/11) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

27 URLs

27 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

13/100
Poor
4 12 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

D48/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
15/25

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:501
Token eff.:Optimal
Sections/1K:24
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary98w
Descriptive Headingsavg 6.5w
Canonical URL
Open Graph2/3
Twitter Card3/3
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.
A
84/100
13
Passed
0
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
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
1/15
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.
70/100
B
122 mg
CO₂e / view
1.2 MB
Page Weight
70%
Cleaner Than
New Visitor
140 mg
vs
Returning (cached)
70 mg
Annual (10K/mo)
14.7 kg
Emission Segments
Data Center
6 mg
Network
36 mg
Device
80 mg
Resource Breakdown
JavaScript
746.6 KB
Images
1.2 KB
CSS
3.8 KB
Fonts
408.9 KB
HTML
48.9 KB
Green Hosting Verified
Microsoft Azure
Provider Match
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Interactive

HTTPS

No WAF

54d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

09.01.2026

Valid Until

09.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

alfen.com

SHA-256 Fingerprint

D0:78:1B:F6:85:A7:76:37:5B:DE:DD:9E:E2:D8:43:9B:6E:06:06:35...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-security-policy
default-src 'self'; script-src 'self' 'nonce-NGIzZDg1MmMtOGR...
content-type
text/html; charset=utf-8
date
Sat, 16 May 2026 18:02:04 GMT
link
</_next/static/css/9fc773e54c94c675.css>; rel=preload; as="s...
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

alfen-com.mail.protection.outlook.com

Domain Information

alfen.com

Domain Age
24y 1m

Created

07.04.2002

Expires

07.04.2027

Last Updated

08.04.2026

Registrar

Realtime Register B.V.

DNSSEC
Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner
Usercentrics
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Usercentrics
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.
C
64/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Neo Sans Pro + CircularXX

WCAG Partial
77/100
Readability
/30
25/30

16px · LH 1.50

Hierarchy
/20
18/20

3.75x ratio · ✓ H1→H6

WCAG
/25
16/25

1:1 min contrast

Performance
/25
18/25

2 fonts · 4 req

Heading Font

Neo Sans Pro

Sans60px

Body Font

CircularXX

Sans16px

Contrast Ratio

1:1

9 issues

Reading Comfort

~37 CPL

Narrow lines
60px
h1
36px
h2
28px
h3
16px
p

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

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 12/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 3.8x larger than body text.

Buy on MyFontsFlesch 13

Color Palette

11 unique colors
4.05:1 AA Large Dark
#2f3835
Text· 7.8%
#91969b
Other· 3.1%
#667585
Primary· 23.4%
#435d76
Secondary· 15.1%
#27425b
Secondary· 14.399999999999999%
#18221f
Secondary· 4.6%
#384348
Secondary· 3.2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
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

15 Resources

12
Scripts
3
Styles
11
Async
0
Defer

Top Script Sources

local(8)googletagmanager.com(2)web.cmp.usercentrics.eu(2)

Website Identity

alfen.com

24 years old
Location detected: 🇨🇦 Canadavia ip
Realtime Register B.V.📧 Microsoft 365en-gb

Social Profiles

FacebookLinkedIn

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Last analyzed: 16 May 2026 at 18:02

Historical Analysis & Change Tracking