rekenen.nl
Rekenen oefenen groep 3, 4, 5, 6, 7 en 8 bij Rekenen.nl
Last scanned Jul 26, 2026, 12:49 PM
Overall score
Great
Summary
Onbeperkt tafels en breuken oefenen, plus- en minsommen maken en rekenspelletjes spelen op Rekenen.nl! Hier kan je rekenen oefenen voor de basisschool. This website uses Google Analytics hosted on CLDIN-NL - Your Hosting B.V., NL. SEO is excellent (100/100) and accessibility is fair (70/100). Security scores fair (65/100) and performance excellent (100/100).
Onbeperkt tafels en breuken oefenen, plus- en minsommen maken en rekenspelletjes spelen op Rekenen.nl! Hier kan je rekenen oefenen voor de basisschool.
- Netherlands
- Hosted on CLDIN-NL - Your Hosting B.V., NL
Top issues to fix
5 issues found · 3 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
SEO
0 issue(s) found
Performance
258 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Onbeperkt tafels en breuken oefenen, plus- en minsommen maken en rekenspelletjes spelen op Rekenen.nl! Hier kan je rekenen oefenen voor de basisschool.
Contact
Email, phone, and address published on this site's own pages.
Source: https://www.rekenen.nl/contact/
Meta tags
- Title
- Rekenen oefenen groep 3, 4, 5, 6, 7 en 8 bij Rekenen.nl
- Description
- Onbeperkt tafels en breuken oefenen, plus- en minsommen maken en rekenspelletjes spelen op Rekenen.nl! Hier kan je rekenen oefenen voor de basisschool.
- Canonical
- https://www.rekenen.nl/
- Language
- nl-NL
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1, maximum-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- CLDIN-NL - Your Hosting B.V., NL
- CDN provider
- —
- IP address
- 185.87.187.222
- ASN
- AS48635 (CLDIN-NL - Your Hosting B.V., NL)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Let's Encrypt
- Subject
- rekenen.nl
- Valid from
- Jun 18, 2026
- Valid to
- Sep 16, 2026
- Days until expiry
- 49
- SAN domains
- rekenen.nl, static1.rekenen.nl, www.rekenen.nl
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 11 · H3 12
Links
101 internal · 12 external · 0 broken
Images
49 total · 33 missing alt
Scripts / Styles
10 scripts · 5 stylesheets
JS / CSS size
308 KB · 104 KB
Page size
89.4 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 1291
SEO issues
No SEO issues detected.
Accessibility issues
- Over half of images are missing alt text
Scan details
- Requested URL
- https://rekenen.nl
- Final URL
- https://www.rekenen.nl/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 257 ms
- HTML size
- 89.4 KB
- Redirect chain
- https://rekenen.nl → https://www.rekenen.nl/
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Frequently asked questions
- What technology does rekenen.nl use?
- rekenen.nl is built with jQuery, Google Analytics, Google Ads.
- Is rekenen.nl secure (HTTPS)?
- Yes. rekenen.nl uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Sep 16, 2026.
- Who hosts rekenen.nl?
- rekenen.nl is hosted on CLDIN-NL - Your Hosting B.V., NL.
- What is rekenen.nl's SEO score?
- rekenen.nl scored 100/100 for SEO in the latest analysis (excellent).
- What is rekenen.nl's overall website score?
- rekenen.nl has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card