nwo.nl
Homepagina | NWO
Last scanned Aug 3, 2026, 5:00 PM · 16 views
Overall score
Excellent
Summary
Nederlandse Organisatie voor Wetenschappelijk Onderzoek. This website uses Google Analytics hosted on PREVIDER-AS - Previder B.V., NL. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: Multiple H1 headings found.
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
- Netherlands
- Hosted on PREVIDER-AS - Previder B.V., NL
Top issues to fix
3 issues found
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
SEO
3 issue(s) found
Performance
375 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 26, 2026
- Overall
- 92
- SEO
- 80
- 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
- Homepagina | NWO
- Description
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek
- Canonical
- https://www.nwo.nl/
- Language
- nl
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- PREVIDER-AS - Previder B.V., NL
- CDN provider
- —
- IP address
- 31.7.6.80
- ASN
- AS20847 (PREVIDER-AS - Previder 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
- Hellenic Academic and Research Institutions CA
- Subject
- nwo.nl
- Valid from
- Jul 22, 2026
- Valid to
- Feb 6, 2027
- Days until expiry
- 187
- SAN domains
- nwo.nl, www.nwo.nl
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyEnabled
Compression: none · 0 cookie(s) observed
Content & assets
Headings
H1 2 · H2 3 · H3 11
Links
72 internal · 11 external · 0 broken
Images
12 total · 0 missing alt
Scripts / Styles
15 scripts · 7 stylesheets
JS / CSS size
993 KB · 739 KB
Page size
132 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 40
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Multiple H1 headings found
- No structured data (JSON-LD) found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://nwo.nl
- Final URL
- https://www.nwo.nl/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 373 ms
- HTML size
- 132 KB
- Redirect chain
- https://nwo.nl → https://www.nwo.nl/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does nwo.nl use?
- nwo.nl is built with Google Analytics.
- Is nwo.nl secure (HTTPS)?
- Yes. nwo.nl uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Feb 6, 2027.
- Who hosts nwo.nl?
- nwo.nl is hosted on PREVIDER-AS - Previder B.V., NL.
- What is nwo.nl's SEO score?
- nwo.nl scored 80/100 for SEO in the latest analysis (great).
- What is nwo.nl's overall website score?
- nwo.nl has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
- Has nwo.nl's score changed over time?
- nwo.nl's overall score has declined by 3 points (from 95 to 92) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card