sltn.nl

https://sltn.nl· First analyzed 15 Jun 2026· Updated 15 Jun 2026

Export

sltn.nl

Mobile

Sponsored

Hosting Provider

Leaseweb

leaseweb.com

IP Address

185.71.61.198

Site Location

🇳🇱 Netherlandsvia phone

Server Location

🇳🇱 Houten, The Netherlands

ASN

AS60781

Organization

Cobytes B.V

Server

Nginx

Nameservers

ns1.cobytes.io.ns3.cobytes.eu.ns2.cobytes.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

606 ms10%

Speed Index

788 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.5 MB

77 requests

Image Optimization

WebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Diviv4.27.4Custom

by Elegant Themes

View Theme

Technology Stack

18 Technologies Detected

Plugins

WPML

Complianz Gdpr Premium

Analytics

Libraries

UI Components

Other

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Advertising

Web Servers

SEO Analysis

B76/100

Meta Tags9/15

Content8/12

Headings8/8

Technical25/25

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile1/4

Indexability3/3

sltn.nlsltn.nl

Home - SLTN

SLTN zorgt ervoor dat de steeds complexere IT-omgevingen beschikbaar worden én blijven. Vandaag, morgen en in de toekomst. SLTN, voor Future-proof IT.

Title Length11 chars

Recommended: 50-60 chars (~71px / 580px)

Description Length150 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (11/14) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

33/100

Needs Work

10 8

Sponsored

AI & LLM Readiness

D47/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

7/25

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

nav

Text ratio:1%

Words:827

Token eff.:Optimal

Depth:1/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary357w

Descriptive Headings

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...

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.

88/100

Passed

Critical

Warnings

Images & Alt Text

18/20

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

Semantic Structure

18/20

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

11/15

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

1 recommendation

•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.

39/100

257 mg

CO₂e / view

2.5 MB

Page Weight

30%

Cleaner Than

New Visitor

294 mg

Returning (cached)

147 mg

Annual (10K/mo)

30.8 kg

Emission Segments

Data Center

13 mg

Network

76 mg

Device

169 mg

Resource Breakdown

JavaScript

319.5 KB

Images

1.5 MB

CSS

487.6 KB

Fonts

1.3 KB

HTML

132.0 KB

Other

93.1 KB

Green Hosting Verified

Leaseweb Global BV

GWF Verified

7 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

A+

Security Score

93%Excellent

Static / Informational

HTTPS

No WAF

105d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

01.09.2025

Valid Until

28.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

sltn.nlfutureforward.sltn.nlwww.sltn.nl

SHA-256 Fingerprint

5E:EC:F2:AD:52:16:96:A0:99:3C:24:66:5F:9B:89:74:FE:99:D9:0A...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-type

text/html; charset=UTF-8

date

Mon, 15 Jun 2026 16:54:16 GMT

link

<https://sltn.nl/wp-json/>; rel="https://api.w.org/", <https...

referrer-policy

same-origin

server

nginx

strict-transport-security

max-age=31536000

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

sltn-nl.x-v1.mx.microsoft

Domain Information

sltn.nl

Domain Age

24y 1m

Created

21.05.2002

Last Updated

28.01.2025

Registrar

RegistrarHub

DNSSEC

Not Enabled

Privacy & Compliance

Complianz

Cookie Consent Banner

Complianz

GDPR Indicators

Cookie consent banner detected

CMP: Complianz

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.

67/100

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=1.0, maximum-scale=1.0, user-scalable=0

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Cleanvertising Black + Raleway

WCAG Partial

72/100

Readability

/30

21/30

18px · LH 1.50

Hierarchy

/20

16/20

4.44x ratio · ✓ H1→H6

WCAG

/25

17/25

2.51:1 min contrast

Performance

/25

18/25

2 fonts · 4 req

Heading Font

Cleanvertising Black

Sans80px

Body Font

Raleway

Sans18px

Contrast Ratio

2.51:1

7 issues

Reading Comfort

~35 CPL

Narrow lines

80px

50px

30px

14px

18px

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

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

❌ Very complex text: Flesch score 25/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 2.5:1).

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

✅ Strong hierarchy: Headlines are 4.4x larger than body text.

GGoogle Fonts Buy on MyFontsFluid Type (rem)Flesch 25

Color Palette

6 unique colors

Light

#ffffff

Text· 11%

#121a59

Primary· 36.9%

#233194

Accent· 23.700000000000003%

#2f3973

Secondary· 12.5%

#656284

Secondary· 12.1%

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

ComplianzSMB

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

sltn.nl(12)googletagmanager.com(4)snap.licdn.com(2)cdnjs.cloudflare.com(1)

Website Identity

SLTN

Organization

SLTN zorgt ervoor dat de steeds complexere IT-omgevingen beschikbaar worden én blijven. Vandaag, morgen en in de toekomst. SLTN, voor Future-proof IT.

[email protected]

+31356888400

sltn.nl/

24 years old

Location detected: 🇳🇱 Netherlandsvia phone

RegistrarHubnl-NL

Sponsored

Last analyzed: 15 Jun 2026 at 16:54

Historical Analysis & Change Tracking