slo.nl
Home - SLO
Last scanned Aug 24, 2026, 1:23 PM
Overall score
Great
Summary
In opdracht van de samenleving ontwikkelt SLO samen met het onderwijsveld de doelen, kaders en instrumenten waarmee scholen hun opdracht vanuit een eigen visie kunnen vervullen. This website uses Google Analytics hosted on RelianceIT - Reliance B.V., NL. SEO is good (85/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance good (80/100). Top issue: Meta description longer than 160 characters.
In opdracht van de samenleving ontwikkelt SLO samen met het onderwijsveld de doelen, kaders en instrumenten waarmee scholen hun opdracht vanuit een eigen visie kunnen vervullen.
- Netherlands
- Hosted on RelianceIT - Reliance B.V., NL
Top issues to fix
3 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
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.
SEO
2 issue(s) found
Performance
1.25 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
In opdracht van de samenleving ontwikkelt SLO samen met het onderwijsveld de doelen, kaders en instrumenten waarmee scholen hun opdracht vanuit een eigen visie kunnen vervullen.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Home - SLO
- Description
- In opdracht van de samenleving ontwikkelt SLO samen met het onderwijsveld de doelen, kaders en instrumenten waarmee scholen hun opdracht vanuit een eigen visie kunnen vervullen.
- Canonical
- https://www.slo.nl/
- Language
- nl
- Charset
- utf-8
- Viewport
- initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- RelianceIT - Reliance B.V., NL
- CDN provider
- —
- IP address
- 185.38.232.198
- ASN
- AS34427 (RelianceIT - Reliance B.V., NL)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Sectigo Limited
- Subject
- *.slo.nl
- Valid from
- Sep 19, 2025
- Valid to
- Oct 12, 2026
- Days until expiry
- 48
- SAN domains
- *.slo.nl, slo.nl
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyEnabled
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 12 · H3 10
Links
64 internal · 9 external · 0 broken
Images
12 total · 0 missing alt
Scripts / Styles
10 scripts · 16 stylesheets
JS / CSS size
354 KB · 1.4 MB
Page size
66.7 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 1
- sitemap.xml
- Found
- URLs in sitemap
- 4184
SEO issues
- Meta description longer than 160 characters
- No structured data (JSON-LD) found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://slo.nl
- Final URL
- https://www.slo.nl/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.25 s
- HTML size
- 66.7 KB
- Redirect chain
- https://slo.nl → https://www.slo.nl/
See something wrong on this report? Request a correction
Related websites
Same technology stack
atlan.com
Atlan - The Context Layer for AI
activtrak.com
ActivTrak Work Intelligence for Productivity Optimization
1001spiele.de
1001 Spiele - Kostenlose coole online Spiele spielen!
ashbyprd.com
All-in-one Recruiting Software for Ambitious Teams | Ashby
1001jeux.fr
1001 Jeux - Jouer aux meilleurs Jeux Gratuits en ligne!
avinor.no
Avinor – Flyplasser, reiseinformasjon og tjenester i Norge
Frequently asked questions
- What technology does slo.nl use?
- slo.nl is built with Google Analytics.
- Is slo.nl secure (HTTPS)?
- Yes. slo.nl uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Oct 12, 2026.
- Who hosts slo.nl?
- slo.nl is hosted on RelianceIT - Reliance B.V., NL.
- What is slo.nl's SEO score?
- slo.nl scored 85/100 for SEO in the latest analysis (great).
- What is slo.nl's overall website score?
- slo.nl has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card