theorie-leren.nl

https://theorie-leren.nl· First analyzed 27 May 2026· Updated 27 May 2026

Export

theorie-leren.nl

Mobile

Sponsored

Hosting Provider

Cyberfusion B.V

IP Address

185.233.175.236

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Ede, Netherlands

ASN

AS204983

Organization

Cyberfusion B.V

Server

Apache

Nameservers

nsauth1.cyberfusion.nl.nsauth0.cyberfusion.nl.nsauth2.cyberfusion.nu.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

612 ms10%

Speed Index

796 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.1 MB

250 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

Hello Elementorv3.4.7

by Elementor Team

View Theme

Technology Stack

41 Technologies Detected

Analytics

Libraries

UI Components

Swiper Slick Carousel

Other

Lottie Anime.js

CSS Frameworks

Tailwind CSS

UIkit

Advertising

TikTok Pixel Microsoft Advertising

Icon Libraries

Tag Managers

Email Marketing

Web Servers

Security

SEO Analysis

A84/100

Meta Tags15/15

Content3/12

Headings5/8

Technical24/25

E-E-A-T7/7

Images5/7

Links5/5

URL5/5

Social5/5

Freshness4/4

Mobile3/4

Indexability3/3

theorie-leren.nltheorie-leren.nl

Theorie Examen Oefenen (2026) bij de #1 van Nederland!

Theorie Leren doe je bij theorie-leren.nl, onderdeel van VekaBest. Wij zijn de grootste theorie opleider van Nederland. Al 4 miljoen geslaagden!

Title Length54 chars

Recommended: 50-60 chars (~329px / 580px)

Description Length144 chars

Recommended: 120-160 chars

Issues (1)

• Very thin content (9 words). Search engines need substantial content for ranking.

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

6 URLs

6 sub-sitemaps

robots.txt

9 rules

Sitemap reference found

Local SEO

Local Search Readiness

31/100

Needs Work

8 10

Sponsored

AI & LLM Readiness

D50/100

Bot Access

20/25

Machine Read.

0/25

Schema Data

18/25

Citation

12/25

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:5%

Words:6,847

Token eff.:Excessive

Structured Data

7 JSON-LD

FAQPage×1.5Article×1.2Person×1.3Organization×1.1WebSiteSearchAction

sameAs entity links

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph2/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

73/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

6/20

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

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

6/15

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

2 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

220 mg

CO₂e / view

2.1 MB

Page Weight

50%

Cleaner Than

New Visitor

251 mg

Returning (cached)

126 mg

Annual (10K/mo)

26.4 kg

Emission Segments

Data Center

11 mg

Network

65 mg

Device

145 mg

Resource Breakdown

JavaScript

524.6 KB

Images

964.8 KB

CSS

483.8 KB

Fonts

142.7 KB

HTML

58.5 KB

Other

3.1 KB

Green Hosting Verified

Cyberfusion

GWF Verified

5 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

21%Critical

Interactive

HTTPS

No WAF

48d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp384r1) (384 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

16.04.2026

Valid Until

15.07.2026

Subject Alternative Names (1)

theorie-leren.nl

SHA-256 Fingerprint

9B:0D:C1:DA:78:0F:3F:FA:A5:AD:82:9B:85:FE:88:32:2C:37:A6:EA...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🔴 No Cache(no-cache, must-revalidate)

cache-tag

theorie-leren.nl

cdn-cache-control

max-age=2592000

content-encoding

📦 Gzip(gzip)

content-length

59599

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

smtp.google.com

Domain Information

theorie-leren.nl

Domain Age

21y 7m

Created

21.10.2004

Last Updated

28.10.2021

Registrar

The Registrar Company B.V.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

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.

76/100

Mobile Friendly24 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

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Patua One + Ubuntu

WCAG Partial

58/100

Readability

/30

16/30

16px · LH 2.31

Hierarchy

/20

14/20

3.56x ratio

WCAG

/25

12/25

1:1 min contrast

Performance

/25

16/25

2 fonts · 9 req

Heading Font

Patua One

Sans57px

Body Font

Ubuntu

Sans16px

Contrast Ratio

1:1

36 issues

Reading Comfort

~36 CPL

Narrow lines

57px

48px

28px

16px

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

⚠️ Wide line spacing (2.31). 1.4–1.6 is optimal for body text.

⚠️ Partial contrast: 36 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 3.6x larger than body text.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Buy on MyFonts

Color Palette

10 unique colors

10.8:1 AAA Light

#ffffff

Background· 29.4%

#3a3e41

Text· 18.9%

#072a40

Accent· 25.9%

#403611

Accent· 8.9%

#0d1016

Primary· 4.8%

#2b3021

Secondary· 2.9%

#182229

Secondary· 2.8%

Business & Marketing Stack

6 Tools Detected

Enterprise

Marketing Automation

KlaviyoE-commerce

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

TikTok PixelMid-Market

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

theorie-leren.nl(6)analytics.tiktok.com(3)googletagmanager.com(3)static-tracking.klaviyo.com(3)consent.cookiebot.com(2)

Website Identity

theorie-leren.nl

Organization

Theorie Leren doe je bij theorie-leren.nl, onderdeel van VekaBest. Wij zijn de grootste theorie opleider van Nederland. Al 4 miljoen geslaagden!

[email protected]

0402140080

www.theorie-leren.nl

21 years old

Location detected: 🇳🇱 Netherlandsvia tld

The Registrar Company B.V.📧 Google Workspacenl-NL

Social Profiles

Facebook Instagram YouTube TikTok

Sponsored

Last analyzed: 27 May 2026 at 23:54

Historical Analysis & Change Tracking