metabolic.nl

https://metabolic.nl· First analyzed 28 May 2026· Updated 28 May 2026

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metabolic.nl

Mobile

Sponsored

Hosting Provider

LiteSpeed

cloud.google.com

IP Address

35.214.143.173

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Groningen, Netherlands

ASN

AS15169

Organization

Google Cloud (europe-west4)

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns2.transip.eu.ns1.transip.nl.ns0.transip.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

551 ms10%

Speed Index

716 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.5 MB

93 requests

Image Optimization

Lazy LoadResponsiveOptimole

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

CMS

WordPressv7.0

Infrastructure

Hosting

Google Cloud Platform

CDN

Cloudflare

Technology Stack

22 Technologies Detected

Plugins

Libraries

Analytics

Other

UI Components

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Advertising

CDN

Security

SEO Analysis

B75/100

Meta Tags9/15

Content10/12

Headings8/8

Technical24/25

E-E-A-T2/7

Images3/7

Links2/5

URL5/5

Social4/5

Freshness2/4

Mobile3/4

Indexability3/3

metabolic.nlmetabolic.nl

Metabolic

Tackling global sustainability challenges and accelerating the transition to a circular economy, through systems thinking, data science, and innovation.

Title Length9 chars

Recommended: 50-60 chars (~54px / 580px)

Description Length152 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (17/21) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

9 URLs

9 sub-sitemaps

robots.txt

3 rules

Allows all crawlers

Local SEO

Local Search Readiness

24/100

Needs Work

7 10

Sponsored

AI & LLM Readiness

D50/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

7/25

Citation

16/25

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

Text ratio:3%

Words:800

Token eff.:Optimal

Structured Data

5 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary102w

Descriptive Headingsavg 7.1w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

80/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

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

9/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 recommendations

•Accessibility recommendation preview...

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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.

41/100

255 mg

CO₂e / view

2.5 MB

Page Weight

30%

Cleaner Than

New Visitor

291 mg

Returning (cached)

146 mg

Annual (10K/mo)

30.6 kg

Emission Segments

Data Center

13 mg

Network

75 mg

Device

168 mg

Resource Breakdown

JavaScript

284.9 KB

Images

1.2 MB

CSS

758.6 KB

Fonts

186.4 KB

HTML

36.7 KB

Green Hosting Verified

Google Cloud

GWF Verified

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

26%Critical

Interactive

HTTPS

WAF

36d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

04.04.2026

Valid Until

03.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.metabolic.nl

SHA-256 Fingerprint

06:96:8F:DE:24:15:F2:16:53:BB:0F:1E:44:D1:80:59:2D:9F:1D:CC...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cf-cache-status

DYNAMIC

cf-ray🇫🇷 Paris

a02e14240da3d0ac-CDG

content-encoding

zstd

content-type

text/html; charset=UTF-8

date

Thu, 28 May 2026 14:51:39 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

ALT1.ASPMX.L.GOOGLE.com

ASPMX2.GOOGLEMAIL.com

ALT2.ASPMX.L.GOOGLE.com

ASPMX3.GOOGLEMAIL.com

+1 more

Domain Information

metabolic.nl

Domain Age

14y 11m

Created

25.06.2011

Last Updated

07.11.2021

Registrar

team.blue nl B.V.

DNSSEC

Not Enabled

Privacy & Compliance

CookieYes

Cookie Consent Banner

CookieYes

GDPR Indicators

Cookie consent banner detected

CMP: CookieYes

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.

81/100

Mobile Friendly13 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...

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Typography & Readability

Motivasans

WCAG Partial

72/100

Readability

/30

26/30

18px · LH 1.50

Hierarchy

/20

14/20

2.67x ratio

WCAG

/25

16/25

1:1 min contrast

Performance

/25

16/25

1 font · 11 req

Heading Font

Motivasans

Sans48px

Body Font

Motivasans

Sans18px

Contrast Ratio

1:1

21 issues

Reading Comfort

~35 CPL

Narrow lines

48px

40px

48px

18px

Minor Second

Scale

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

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

⚠️ Hard to read: Flesch score 40/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 21 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Strong hierarchy: Headlines are 2.7x larger than body text.

Buy on MyFontsFluid TypeFlesch 40

Color Palette

12 unique colors

8.39:1 AAA Light

#f1f1f3

Secondary· 12.9%

#4f424d

Secondary· 9.1%

#3b3341

Primary· 13.8%

#221f29

Secondary· 12.6%

#715552

Secondary· 5.9%

#515467

Secondary· 5.3%

#120f1b

Secondary· 5.2%

#5b343e

Secondary· 4.1%

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

CookieYesSMB

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

metabolic.nl(12)googletagmanager.com(3)cdn-cookieyes.com(2)gstatic.com(1)sc.lfeeder.com(1)

Website Identity

Metabolic

Organization

Tackling global sustainability challenges and accelerating the transition to a circular economy, through systems thinking, data science, and innovation.

info@metabolic.nl

www.metabolic.nl/

14 years old

Location detected: 🇳🇱 Netherlandsvia tld

team.blue nl B.V.📧 Google Workspaceen-US

Social Profiles

Facebook X (Twitter)Instagram LinkedIn

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Last analyzed: 28 May 2026 at 14:52

Historical Analysis & Change Tracking