sleiderink.nl

https://sleiderink.nl· First analyzed 01 Jun 2026· Updated 01 Jun 2026

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sleiderink.nl

Mobile

Sponsored

Hosting Provider

RegisterIT

IP Address

94.76.192.137

Site Location

🇳🇱 Denekamp, Netherlandsvia schema

Server Location

🇬🇧 London, United Kingdom

ASN

AS29550

Organization

RegisterIT

Server

Nginx

Nameservers

ns2.shockmedia.nl.ns1.shockmedia.nl.ns3.shockmedia.nl.

Performance

Core Web Vitals

Weight

First Contentful Paint

816 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.2 MB

67 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

Alpine.js

Styling

Tailwind CSS

CMS

Magento

Infrastructure

Hosting

RegisterIT

Technology Stack

12 Technologies Detected

Analytics

Frameworks

Other

UI Components

CSS Frameworks

Tag Managers

Other

Web Servers

Security

Customer Support

SEO Analysis

B77/100

Meta Tags15/15

Content10/12

Headings3/8

Technical24/25

E-E-A-T3/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness2/4

Mobile3/4

Indexability3/3

sleiderink.nlsleiderink.nl

Sleiderink.nl | Dé Online Bouwmaterialen Groothandel

Online bouwmaterialen groothandel voor particulier en bedrijf. Alles voor bouwen en verbouwen onder één dak. Persoonlijk advies & snelle levering.

Title Length52 chars

Recommended: 50-60 chars (~309px / 580px)

Description Length146 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

4,763 URLs

robots.txt

187 rules

Sitemap reference found

Local SEO

Local Search Readiness

55/100

Fair

13 10

Sponsored

AI & LLM Readiness

F35/100

Bot Access

20/25

Machine Read.

0/25

Schema Data

9/25

Citation

6/25

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:4%

Words:8,922

Token eff.:Excessive

Structured Data

3 JSON-LD

Person×1.3(min)microdataOrganization×1.1(min)microdataWebSiteLocalBusiness×1.1SpeakableSpecification×1.3

Citation Readiness

Opening Summary152w

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

84/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

10/20

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

15/15

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.

1 recommendation

•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

274 mg

CO₂e / view

2.2 MB

Page Weight

50%

Cleaner Than

New Visitor

313 mg

Returning (cached)

157 mg

Annual (10K/mo)

32.9 kg

Emission Segments

Data Center

61 mg

Network

66 mg

Device

147 mg

Resource Breakdown

JavaScript

26.9 KB

Images

1.7 MB

CSS

209.9 KB

Fonts

68.8 KB

HTML

175.3 KB

Green Hosting Not Verified

RegisterIT

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

68d

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

11.05.2026

Valid Until

09.08.2026

Subject Alternative Names (1)

www.sleiderink.nl

SHA-256 Fingerprint

54:EF:2E:A6:39:3A:26:5D:A6:85:88:5D:33:B2:79:EC:63:87:E5:B5...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate, max-age=0)

content-encoding

📦 Gzip(gzip)

content-security-policy-report-only

font-src fonts.gstatic.com use.typekit.net *.typekit.net *.g...

content-type

text/html; charset=UTF-8

date

Mon, 01 Jun 2026 08:27:31 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

sleiderink-nl.mail.protection.outlook.com

Domain Information

sleiderink.nl

Domain Age

28y 7m

Created

16.10.1997

Last Updated

30.07.2018

Registrar

Shock Media 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.

77/100

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...

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Typography & Readability

Space Grotesk + Open Sans

WCAG Partial

61/100

Readability

/30

20/30

15px · LH 1.60

Hierarchy

/20

8/20

WCAG

/25

17/25

1:1 min contrast

Performance

/25

16/25

2 fonts · 7 req

Heading Font

Space Grotesk

Sans

Body Font

Open Sans

Sans15px

Contrast Ratio

1:1

12 issues

Reading Comfort

~41 CPL

Narrow lines

28px

48px

15px

Major Sixth

Scale

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

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

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 1.0:1).

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

✅ Lean font stack: 2 font families keeps load times fast.

Buy on MyFontsFlesch 40

Color Palette

8 unique colors

9.85:1 AAA Light

#f9f9f9

Background· 33.8%

#404040

Other· 20.7%

#403a00

Accent· 14.1%

#08101a

Primary· 11.2%

#96b793

Secondary· 3.7%

#2d2919

Primary· 3.5%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Pinterest AdsMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

A/B Testing & Optimization

VWO (Visual Website Optimizer)Mid-Market

Experimentation and conversion optimization

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)consent.cookiebot.eu(2)s.pinimg.com(2)sleiderink.nl(2)platform.getqonfi.com(2)

Website Identity

Sleiderink

LocalBusiness

Bouwmaterialen groothandel

+31 541 35 44 44

www.sleiderink.nl/

28 years old

Hanzeweg 20, Denekamp

7591BK, Denekamp, Overijssel

Location detected: 🇳🇱 Netherlands, Denekampvia schema

Shock Media B.V.📧 Microsoft 365nl

Social Profiles

Facebook Instagram LinkedIn TikTok Pinterest

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Last analyzed: 01 Jun 2026 at 08:28

Historical Analysis & Change Tracking