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538.nl

https://538.nl· First analyzed 06 May 2026· Updated 06 May 2026
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538.nl
Desktop screenshot of 538.nl
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Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

13.33.235.61

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇺🇸 New York, United States

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

CDN

CloudFront

Nameservers

ns-1839.awsdns-37.co.uk.ns-50.awsdns-06.com.ns-790.awsdns-34.net.ns-1044.awsdns-02.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
436 ms10%
Speed Index
567 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.4 MB
122 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

JAMstack
🔀 Hybrid
Decoupled
Frontend
Framework
Next.js
Styling
Tailwind CSS
API
Data Source
Headless CMS
Contentful
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Progressive Web App

Web Manifest

Detected API Sources

https://cldnr.prod.webx.talpa....https://cldnr.prod.webx.talpa....

Technology Stack

3 Technologies Detected

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Customer Support

1
Zendesk

SEO Analysis

C64/100
19
5
2
Meta Tags12/15
Content0/12
Headings3/8
Technical21/25
E-E-A-T2/7
Images6/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
5
538.nl538.nl

Jouw hits, jouw 538! | Radio 538

Jouw hits, jouw 538! Luister en kijk live, check de programmering en ontdek de leukste radiofragmenten. Mis niks van jouw favoriete shows en dj's.

Title Length32 chars

Recommended: 50-60 chars (~193px / 580px)

Description Length146 chars

Recommended: 120-160 chars

Issues (2)

  • • Very thin content (19 words). Search engines need substantial content for ranking.
  • • Missing H1 tag — every page should have exactly one H1

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

15 URLs

15 sub-sitemaps

robots.txt

8 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

19/100
Poor
6 10 1

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F37/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
3/25
Citation
7/25

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:1%
Words:897
Token eff.:Optimal

Structured Data

2 JSON-LD
Organization×1.1BreadcrumbList

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
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.
C
63/100
9
Passed
6
Critical
2
Warnings
Images & Alt Text
18/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
7/20
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
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.
4 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.
53/100
D
251 mg
CO₂e / view
2.4 MB
Page Weight
30%
Cleaner Than
New Visitor
287 mg
vs
Returning (cached)
143 mg
Annual (10K/mo)
30.1 kg
Emission Segments
Data Center
12 mg
Network
74 mg
Device
165 mg
Resource Breakdown
JavaScript
500.5 KB
Images
1.7 MB
CSS
13.0 KB
Fonts
125.8 KB
HTML
74.1 KB
Other
5.2 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

51%Poor
Interactive

HTTPS

WAF

80d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

26.06.2025

Valid Until

25.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

www.538.nl538.nlwebx.538.nl

SHA-256 Fingerprint

48:DB:93:B4:14:3D:D5:1F:FD:78:B3:0C:AA:63:C7:90:E9:7F:FF:5C...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🟡 120s(max-age=120, stale-while-revalidate=120, stale-if-error=8640...)
content-encoding
📦 Gzip(gzip)
content-length
75561
content-type
text/html; charset=utf-8
date
Wed, 06 May 2026 21:53:07 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxa-004ed801.gslb.pphosted.com
mxb-004ed801.gslb.pphosted.com

Domain Information

538.nl

Domain Age
18y 2m

Created

29.02.2008

Last Updated

04.07.2025

Registrar

Registrar.eu

DNSSEC
Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner
OneTrust
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: OneTrust
Privacy policy page linked
Data Protection Officer 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.
B
76/100
Mobile Friendly163 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
initial-scale=1, width=device-width
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

QanelasSoft

WCAG Partial
55/100
Readability
/30
13/30

12px · LH 1.25

Hierarchy
/20
8/20
WCAG
/25
16/25

1:1 min contrast

Performance
/25
18/25

1 font · 4 req

Heading Font

QanelasSoft

Sans

Body Font

QanelasSoft

Sans12px

Contrast Ratio

1:1

8 issues

Reading Comfort

~52 CPL

Optimal (45–75)
34px
h2
26px
h3
34px
h4
12px
p
Minor Second
Scale

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Tight line spacing (1.25). Increase to 1.4–1.6 for better readability.

✅ Optimal line length: ~52 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 39/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 1.0:1).

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

Buy on MyFontsFlesch 39

Color Palette

12 unique colors
17.34:1 AAA Dark
#1b1a1c
Text· 9.5%
#ffffff
Text· 9.3%
#620095
Accent· 31.3%
#010000
Primary· 12%
#ca3129
Accent· 8.6%
#c880a5
Secondary· 7%
#5b7d8e
Secondary· 6.2%
#2e2f45
Secondary· 5.2%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
OneTrustEnterprise

Cookie consent and privacy compliance tools

2

Categories

2

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

Ad Networks

Prebid.js

Sponsored

Scripts & Styles

21 Resources

20
Scripts
1
Styles
1
Async
19
Defer

Top Script Sources

local(17)cdn.cookielaw.org(1)ssl.p.jwpcdn.com(1)advertising-cdn.dpgmedia.cloud(1)

Website Identity

Radio 538

Jouw hits, jouw 538! Luister en kijk live, check de programmering en ontdek de leukste radiofragmenten. Mis niks van jouw favoriete shows en dj's.

info@538.nl
00319093000538
www.538.nl
18 years old
Location detected: 🇳🇱 Netherlandsvia tld
Registrar.eunl

Sponsored

Last analyzed: 06 May 2026 at 21:53

Historical Analysis & Change Tracking