StackOptic
Back to Search
computable.nl favicon

computable.nl

https://computable.nl· First analyzed 28 Apr 2026· Updated 28 Apr 2026
Export
computable.nl
Desktop screenshot of computable.nl
Mobile screenshot of computable.nl
Mobile

Sponsored

Hosting Provider

True B.V

IP Address

87.233.245.153

Site Location

🇳🇱 Utrecht, Netherlandsvia schema_nap

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS15703

Organization

True B.V

Nameservers

ns1.transip.nl.ns0.transip.net.ns2.transip.eu.

Performance

96

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
5.7 MB
115 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
Computablev1.0Custom
by Radish Concepts
View Theme

Technology Stack

14 Technologies Detected

Plugins

5
Wordpress Popular Posts
Contact Form 7
Easy LiveblogsJb VotingJb Formbuilder

Analytics

3
Google Analytics
Google Analytics 4
Microsoft Clarity

Libraries

1
jQueryv3.7.1

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Advertising

1
Google Ads

Customer Support

1
Zendesk

SEO Analysis

C68/100
22
4
3
Meta Tags9/15
Content3/12
Headings3/8
Technical22/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile4/4
Indexability3/3
C
computable.nlcomputable.nl

Home - Computable.nl

Computable is een onafhankelijk medium dat bericht over marktontwikkelingen, opinies, projecten in ict en business-vraagstukken.

Title Length20 chars

Recommended: 50-60 chars (~123px / 580px)

Description Length128 chars

Recommended: 120-160 chars

Issues (3)

  • • Very thin content (3 words). Search engines need substantial content for ranking.
  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (55/72) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

776 URLs

776 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

24/100
Needs Work
6 14

Sponsored

AI & LLM Readiness

D42/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
7/25
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
Text ratio:2%
Words:1,589
Token eff.:Optimal

Structured Data

5 JSON-LD
Organization×1.1WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
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.
C
65/100
8
Passed
5
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
3/20
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
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 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.
18/100
F
722 mg
CO₂e / view
5.7 MB
Page Weight
5%
Cleaner Than
New Visitor
825 mg
vs
Returning (cached)
412 mg
Annual (10K/mo)
86.6 kg
Emission Segments
Data Center
161 mg
Network
173 mg
Device
387 mg
Resource Breakdown
JavaScript
866.6 KB
Images
4.3 MB
CSS
234.1 KB
Fonts
2.1 KB
HTML
237.5 KB
Other
41.2 KB
Green Hosting Not Verified
True B.V
9 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

77d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

16.04.2026

Valid Until

15.07.2026

Subject Alternative Names (8)

awards.computable.nlcommunity.computable.nlcomputable.nlmedia.computable.nlmobiel.computable.nlwhitepapers.computable.nlwww.computable.nlwww2.computable.nl

SHA-256 Fingerprint

70:ED:6C:E0:55:9F:A9:2A:91:E2:15:82:C1:5A:DA:99:A4:54:14:0F...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin
computable.magazine.jaarbeursdigital.nl
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=UTF-8
date
Tue, 28 Apr 2026 23:42:01 GMT
link
<https://www.computable.nl/wp-json/>; rel="https://api.w.org...
vary
Accept-Encoding
Good Warning Issue

Email Infrastructure

Barracuda

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

d331534.a.ess.de.barracudanetworks.com
d331534.b.ess.de.barracudanetworks.com

Domain Information

computable.nl

Domain Age
29 years

Created

17.04.1997

Last Updated

16.04.2025

Registrar

team.blue nl B.V.

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Privacy policy page linked

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
74/100
Mobile Friendly2 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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Open Sans Condensed Bold + Roboto

WCAG Partial
66/100
Readability
/30
22/30

16px · LH 1.50

Hierarchy
/20
8/20
WCAG
/25
18/25

3.5:1 min contrast

Performance
/25
18/25

2 fonts · 6 req

Heading Font

Open Sans Condensed Bold

Sans

Body Font

Roboto

Sans16px

Contrast Ratio

3.5:1

15 issues

Reading Comfort

~33 CPL

Narrow lines
42px
h2
36px
h3
36px
h4
16px
p

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

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

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 3.5:1).

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

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

GGoogle FontsBuy on MyFontsFluid Type (rem)Flesch 0

Color Palette

10 unique colors
21:1 AAA Light
#ffffff
Background· 50.7%
#000000
Text· 12.7%
#075c8e
Primary· 8.5%
#000d33
Accent· 5.699999999999999%
#5c6674
Secondary· 4.4%
#4ea8c3
Secondary· 4%
#361f51
Secondary· 3.2%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

3
Google Tag ManagerFree
Google AnalyticsFree
Microsoft ClarityFree

User behavior and product analytics

Privacy & Cookies

1
CookiebotMid-Market

Cookie consent and privacy compliance tools

2

Categories

4

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

Ad Networks

Google Ad Manager

Sponsored

Scripts & Styles

29 Resources

20
Scripts
9
Styles
9
Async
0
Defer

Top Script Sources

computable.nl(11)googletagmanager.com(3)consent.cookiebot.com(2)securepubads.g.doubleclick.net(2)scripts.clarity.ms(1)

Website Identity

Computable

Computable

Organization
www.computable.nl
29 years old

Jaarbeursplein 6, Utrecht

3521 AL, Utrecht

NL

Location detected: 🇳🇱 Netherlands, Utrechtvia schema_nap
team.blue nl B.V.📧 Barracuda

Sponsored

Last analyzed: 28 Apr 2026 at 23:42

Historical Analysis & Change Tracking