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isala.nl

https://isala.nl· First analyzed 09 May 2026· Updated 09 May 2026
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isala.nl
Desktop screenshot of isala.nl
Mobile screenshot of isala.nl
Mobile

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Hosting Provider

CUST

IP Address

178.248.157.122

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Kortenhoef, Netherlands

ASN

AS31673

CDN

Akamai

WAF

Akamai

Nameservers

ns1.kpn.net.ns11.kpn.net.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
976 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.5 MB
34 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
CUST
CDN
Akamai

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

3 Technologies Detected

Other

1
ScrollMagic

CSS Frameworks

1
Tailwind CSS

Customer Support

1
Zendesk

SEO Analysis

C63/100
17
8
1
Meta Tags12/15
Content12/12
Headings7/8
Technical13/21
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
I
isala.nlisala.nl

Isala | topklinisch ziekenhuis in de regio Zwolle

Isala is een groot regioziekenhuis met topklinische zorg. Met met vijf locaties in Zwolle, Meppel, Steenwijk, Kampen en Heerde is Isala uw ziekenhuis in de r...

Description truncated.
Title Length49 chars

Recommended: 50-60 chars (~280px / 580px)

Description Length392 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (13/20) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Local SEO

Local Search Readiness

25/100
Needs Work
7 10 1

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AI & LLM Readiness

F38/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
Citation
7/25

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
navheader/footer
Text ratio:6%
Words:631
Token eff.:Optimal
Sections/1K:31.7
Depth:2/5

Structured Data

1 JSON-LD

Citation Readiness

Opening Summary157w
Descriptive Headingsavg 3.5w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
Upgrade to view recommendations

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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.
B
79/100
13
Passed
2
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
3/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •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.
56/100
C
191 mg
CO₂e / view
1.5 MB
Page Weight
60%
Cleaner Than
New Visitor
218 mg
vs
Returning (cached)
109 mg
Annual (10K/mo)
22.9 kg
Emission Segments
Data Center
43 mg
Network
46 mg
Device
103 mg
Resource Breakdown
JavaScript
172.4 KB
Images
1.1 MB
HTML
13.4 KB
Other
235.4 KB
Green Hosting Not Verified
CUST
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

81%Very Good
Interactive

HTTPS

WAF

53d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

02.04.2026

Valid Until

01.07.2026

Subject Alternative Names (1)

www.isala.nl

SHA-256 Fingerprint

11:B1:D5:EB:71:F6:90:6F:3A:04:9F:3A:41:EF:54:F8:BE:2D:E9:78...

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=93600
cache-control
🔴 No Cache(max-age=0, no-cache, no-store)
content-encoding
📦 Gzip(gzip)
content-length
13470
content-security-policy
default-src 'self' www.youtube.com www.google-analytics.com ...
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Barracuda

Score

68

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

d339600.a.ess.de.barracudanetworks.com
d339600.b.ess.de.barracudanetworks.com

Domain Information

isala.nl

Domain Age
28y 1m

Created

15.04.1998

Last Updated

19.03.2025

Registrar

KPN 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
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.
C
65/100
Mobile Friendly
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Karbon

WCAG Partial
77/100
Readability
/30
23/30

20px · LH 1.40

Hierarchy
/20
16/20

4x ratio

WCAG
/25
17/25

1:1 min contrast

Performance
/25
21/25

1 font

Heading Font

Karbon

Sans79px

Body Font

Karbon

Sans20px

Contrast Ratio

1:1

24 issues

Reading Comfort

~36 CPL

Narrow lines
79px
h1
50px
h2
26px
h3
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 29/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 24 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 4.0x larger than body text.

Buy on MyFontsFlesch 29

Color Palette

9 unique colors
3.87:1 AA Large Light
#ffffff
Primary· 42.5%
#848088
Other· 4.5%
#7d0350
Primary· 20.5%
#c9baa3
Secondary· 7.8%
#225fab
Accent· 7.7%
#113764
Accent· 6.5%
#6b464d
Secondary· 4.5%
#4f1140
Accent· 3.1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

5 Resources

4
Scripts
1
Styles
1
Async
0
Defer

Top Script Sources

local(3)s2.go-mpulse.net(1)

Website Identity

Ziekenhuisgroep Isala

Ziekenhuisgroep Isala

Hospital
info@isala.nl
088 624 50 00
www.isala.nl
28 years old
Location detected: 🇳🇱 Netherlandsvia tld
KPN B.V.📧 Barracudanl

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Last analyzed: 09 May 2026 at 09:24

Historical Analysis & Change Tracking