hartstichting.nl
Steun hart- en vaatpatiënten. Nu en later | Hartstichting
Last scanned Aug 4, 2026, 7:00 PM · 14 views
Overall score
Excellent
Summary
Op dit moment leven er 1,8 miljoen mensen in Nederland met een hart- of vaatziekte. This website uses Google Analytics behind Cloudflare CDN. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
Op dit moment leven er 1,8 miljoen mensen in Nederland met een hart- of vaatziekte. Elke dag sterven 104 mensen aan hart- en vaatziekten en belanden 634 mensen in het ziekenhuis. Als we niet ingrijpen, loopt dit aantal snel op en neemt de druk op de zorg verder toe.
Top issues to fix
6 issues found
2 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
4 issue(s) found
Performance
1.77 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 27, 2026
- Overall
- 90
- SEO
- 75
- Security
- 100
- Performance
- 90
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Steun hart- en vaatpatiënten. Nu en later | Hartstichting
- Description
- Op dit moment leven er 1,8 miljoen mensen in Nederland met een hart- of vaatziekte. Elke dag sterven 104 mensen aan hart- en vaatziekten en belanden 634 mensen in het ziekenhuis. Als we niet ingrijpen, loopt dit aantal snel op en neemt de druk op de zorg verder toe.
- Canonical
- https://www.hartstichting.nl/
- Language
- nl
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0, interactive-widget=resizes-content
- Robots meta
- index
- Manifest
- https://www.hartstichting.nl/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- www.hartstichting.nl
- Valid from
- Aug 2, 2026
- Valid to
- Oct 31, 2026
- Days until expiry
- 88
- SAN domains
- www.hartstichting.nl
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 16 · H3 6
Links
35 internal · 10 external · 20 broken
Images
22 total · 1 missing alt
Scripts / Styles
50 scripts · 2 stylesheets
JS / CSS size
728 KB · 145 KB
Page size
39.2 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://hartstichting.nl
- Final URL
- https://www.hartstichting.nl/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.77 s
- HTML size
- 39.2 KB
- Redirect chain
- https://hartstichting.nl → https://www.hartstichting.nl/
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Frequently asked questions
- What technology does hartstichting.nl use?
- hartstichting.nl is built with React, Vue.js, Bootstrap, Google Analytics.
- Is hartstichting.nl secure (HTTPS)?
- Yes. hartstichting.nl uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 31, 2026.
- Who hosts hartstichting.nl?
- Hosting provider information for hartstichting.nl is not available yet.
- What is hartstichting.nl's SEO score?
- hartstichting.nl scored 75/100 for SEO in the latest analysis (fair).
- What is hartstichting.nl's overall website score?
- hartstichting.nl has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
- Has hartstichting.nl's score changed over time?
- hartstichting.nl's overall score has declined by 3 points (from 93 to 90) since Jul 27, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card