StackOptic
Back to Search
tio.nl favicon

tio.nl

https://tio.nl· First analyzed 24 May 2026· Updated 24 May 2026
Export
tio.nl
Desktop screenshot of tio.nl
Mobile screenshot of tio.nl
Mobile

Sponsored

Hosting Provider

Linode (Akamai)
linode.com

IP Address

45.79.250.224

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS63949

Organization

Linode

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ashley.ns.cloudflare.com.norman.ns.cloudflare.com.

Performance

88

Core Web Vitals

Weight

First Contentful Paint
1.6 s10%
Speed Index
2.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
7.4 MB
128 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Linode (Akamai)
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

9 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook PixelMouseflow

Other

1
Lottie

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

B75/100
21
7
0
Meta Tags15/15
Content10/12
Headings6/8
Technical20/25
E-E-A-T2/7
Images5/7
Links2/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
T
tio.nltio.nl

Tio Business School: Ontwikkel je talenten en kom verder

Kom verder in je carrière én in je leven. Kies je voor ons, dan kies je voor toponderwijs aan de beste kleine hogeschool van Nederland! Hbo • Mbo • Ad • MBA.

Title Length56 chars

Recommended: 50-60 chars (~340px / 580px)

Description Length157 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    2,072 URLs

    robots.txt

    42 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    19/100
    Poor
    5 13

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

    Sponsored

    AI & LLM Readiness

    D48/100
    Bot Access
    20/25
    Machine Read.
    11/25
    Schema Data
    9/25
    Citation
    8/25

    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:9%
    Words:1,771
    Token eff.:Optimal
    Sections/1K:2.3
    Depth:1/5

    Structured Data

    5 JSON-LD
    Organization×1.1WebSiteVideoObjectBreadcrumbListSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary177w
    Descriptive Headingsavg 2.4w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    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.
    C
    66/100
    11
    Passed
    4
    Critical
    2
    Warnings
    Images & Alt Text
    18/20
    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
    2/15
    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
    7/15
    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.
    38/100
    F
    770 mg
    CO₂e / view
    7.4 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    880 mg
    vs
    Returning (cached)
    440 mg
    Annual (10K/mo)
    92.4 kg
    Emission Segments
    Data Center
    38 mg
    Network
    226 mg
    Device
    506 mg
    Resource Breakdown
    JavaScript
    291.8 KB
    Images
    639.7 KB
    CSS
    6.5 MB
    HTML
    24.2 KB
    Other
    34.6 KB
    Green Hosting Verified
    Linode (Akamai)
    Provider Match
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    36%Critical
    Interactive

    HTTPS

    No WAF

    37d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    02.04.2026

    Valid Until

    01.07.2026

    Subject Alternative Names (1)

    www.tio.nl

    SHA-256 Fingerprint

    F1:55:8F:18:02:73:26:95:CF:35:1D:1E:68:F0:D3:D3:BA:79:59:3D...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-cache)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=UTF-8
    date
    Sun, 24 May 2026 22:06:49 GMT
    server
    nginx
    strict-transport-security
    max-age=31536000
    Good Warning Issue

    Email Infrastructure

    Barracuda

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (2)

    d326580.a.ess.de.barracudanetworks.com
    d326580.b.ess.de.barracudanetworks.com

    Domain Information

    tio.nl

    Domain Age
    29y 4m

    Created

    12.01.1997

    Last Updated

    29.10.2024

    Registrar

    Realtime Register

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    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
    75/100
    Mobile Friendly3 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

    Raptor + Inter

    WCAG AAA
    76/100
    Readability
    /30
    23/30

    18px · LH 1.50

    Hierarchy
    /20
    18/20

    3.11x ratio

    WCAG
    /25
    22/25

    10.21:1 min contrast

    Performance
    /25
    13/25

    2 fonts · 5 req

    Heading Font

    Raptor

    Sans56px

    Body Font

    Inter

    Sans18px

    Contrast Ratio

    10.21:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~32 CPL

    Narrow lines
    56px
    h1
    40px
    h2
    28px
    h3
    12px
    h4
    18px
    p

    ✅ 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 10/100. Consider shorter sentences and simpler words.

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 10.2:1).

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 3.1x larger than body text.

    Buy on MyFontsFluid TypeFlesch 10

    Color Palette

    14 unique colors
    16.48:1 AAA Dark
    #1e1f22
    Text· 15.2%
    #ffffff
    Primary· 9%
    #212f33
    Secondary· 13%
    #073799
    Primary· 9.3%
    #dae1f2
    Primary· 9.1%
    #7c5751
    Secondary· 9.1%
    #89e577
    Primary· 5.6%
    #0b0d0f
    Secondary· 5.5%

    Business & Marketing Stack

    4 Tools Detected

    Advanced

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    MouseflowSMB

    User behavior and product analytics

    Advertising

    1
    Facebook PixelMid-Market

    Ad platforms and retargeting pixels

    2

    Categories

    4

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    17 Resources

    14
    Scripts
    3
    Styles
    13
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(4)connect.facebook.net(2)youtube.com(2)local(2)e428.tio.nl(1)

    Website Identity

    Tio Business School: The road to success starts here

    VideoObject

    Video voor header website. Verborgen laten staan. Is zonder geluid.

    www.tio.nl/
    29 years old
    Location detected: 🇳🇱 Netherlandsvia tld
    Realtime Register📧 Barracudanl

    Sponsored

    Last analyzed: 24 May 2026 at 22:07

    Historical Analysis & Change Tracking