Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 194.171.77.135 |
|
🔒 🟡 Mixed Content (1 HTTP resources) | The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers. |
|
ℹ 🔵 No Compression | The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 194.171.77.135
🔒 🟡 Mixed Content (1 HTTP resources) The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers.
ℹ 🔵 No Compression The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage.
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://duo.nl:443 | 302 | HTTP/1.1 302 |
| 2 | https://duo.nl/particulier/ | 200 | HTTP/1.1 200 |
#1 URL https://duo.nl:443
HTTP Status Code 302
Status HTTP/1.1 302
#2 URL https://duo.nl/particulier/
HTTP Status Code 200
Status HTTP/1.1 200
Performance
| DNS Lookup | 0.5 ms |
| TCP Connect | 17.5 ms |
| TLS Handshake | 44.7 ms |
| Time To First Byte (TTFB) | 85.8 ms |
| Content Download | 27.4 ms |
| Total Response Time | 113.2 ms |
DNS Lookup 0.5 ms
TCP Connect 17.5 ms
TLS Handshake 44.7 ms
Time To First Byte (TTFB) 85.8 ms
Content Download 27.4 ms
Total Response Time 113.2 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=631138519;includeSubDomains |
| CSP | ✔ Configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | no-referrer, strict-origin-when-cross-origin |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=631138519;includeSubDomains
CSP ✔ Configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ✔ nosniff
Referrer Policy no-referrer, strict-origin-when-cross-origin
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | DUO - Particulier |
| Meta Description | Informatie voor studenten, terugbetalers en leraren. Informatie over studiefinanciering, studieschuld, reizen, lesgeld, diploma’s en staatsexamens. |
| Open Graph Title | DUO - Particulier |
| Open Graph Description | Informatie voor studenten, terugbetalers en leraren. Informatie over studiefinanciering, studieschuld, reizen, lesgeld, diploma’s en staatsexamens. |
| Open Graph Image | https://www.duo.nl/images/logoduo.png |
| Twitter Card | summary_large_image |
| Twitter Title | DUO - Particulier |
| Twitter Description | Informatie voor studenten, terugbetalers en leraren. Informatie over studiefinanciering, studieschuld, reizen, lesgeld, diploma’s en staatsexamens. |
| Twitter Image | https://www.duo.nl/images/logoduo.png |
Title DUO - Particulier Meta Description Informatie voor studenten, terugbetalers en leraren. Informatie over studiefinanciering, studieschuld, reizen, lesgeld, diploma’s en staatsexamens. Open Graph Title DUO - Particulier Open Graph Description Informatie voor studenten, terugbetalers en leraren. Informatie over studiefinanciering, studieschuld, reizen, lesgeld, diploma’s en staatsexamens. Open Graph Image https://www.duo.nl/images/logoduo.png Twitter Card summary_large_image Twitter Title DUO - Particulier Twitter Description Informatie voor studenten, terugbetalers en leraren. Informatie over studiefinanciering, studieschuld, reizen, lesgeld, diploma’s en staatsexamens. Twitter Image https://www.duo.nl/images/logoduo.png Detected Technologies
| Technology | Google Analytics Google Tag Manager Cloudflare PHP Matomo |
Technology Google Analytics Google Tag Manager Cloudflare PHP Matomo
HTTP Headers
| Content-Security-Policy
| default-src 'self'; img-src 'self' data: stats.duo.rijkscloud.nl https://*.lpsnmedia.net https://s3-eu-west-1.amazonaws.com/obipub/ https://*.duo.nl https://duo.nl https://www.toegankelijkheidsverklaring.nl/files/verklaring/label/ https://www.googletagmanager.com; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://*.duo.nl https://stats.duo.rijkscloud.nl https://www.googletagmanager.com ajax.googleapis.com https://cdnjs.cloudflare.com https://a.optnmnstr.com https://*.obi4wan.com https://*.pusher.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com https://apps.duo.nl; font-src 'self' https://fonts.gstatic.com https://apps.duo.nl data:;; connect-src 'self' https://*.duo.nl https://stats.duo.rijkscloud.nl https://*.googleapis.com https://kennisbank.prd.duo.nl https://*.obi4wan.com https://*.pusher.com wss://*.pusher.com https://duo.nl; object-src 'none'; frame-src 'self' https://cloud.reflexappointment.nl |
| Cache-Control
| no-store |
| Referrer-Policy
| no-referrer, strict-origin-when-cross-origin |
| Vary
| Origin |
| Strict-Transport-Security
| max-age=631138519;includeSubDomains |
| X-Frame-Options
| SAMEORIGIN |
| X-Content-Type-Options
| nosniff |
| X-XSS-Protection
| 1; mode=block |
| Content-Type
| text/html;charset=UTF-8 |
| Transfer-Encoding
| chunked |
| Date
| Thu, 20 Aug 2026 10:57:22 GMT |
Meta Tags
| Content-Type | text/html; charset=utf-8 |
| Viewport | width=device-width, initial-scale=1 |
| Apple-mobile-web-app-title | DUO - Particulier |
| Description | Informatie voor studenten, terugbetalers en leraren. Informatie over studiefinanciering, studieschuld, reizen, lesgeld, diploma’s en staatsexamens. |
| X-UA-Compatible | IE=edge |
Content-Security-Policy default-src 'self'; img-src 'self' data: stats.duo.rijkscloud.nl https://*.lpsnmedia.net https://s3-eu-west-1.amazonaws.com/obipub/ https://*.duo.nl https://duo.nl https://www.toegankelijkheidsverklaring.nl/files/verklaring/label/ https://www.googletagmanager.com; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://*.duo.nl https://stats.duo.rijkscloud.nl https://www.googletagmanager.com ajax.googleapis.com https://cdnjs.cloudflare.com https://a.optnmnstr.com https://*.obi4wan.com https://*.pusher.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com https://apps.duo.nl; font-src 'self' https://fonts.gstatic.com https://apps.duo.nl data:;; connect-src 'self' https://*.duo.nl https://stats.duo.rijkscloud.nl https://*.googleapis.com https://kennisbank.prd.duo.nl https://*.obi4wan.com https://*.pusher.com wss://*.pusher.com https://duo.nl; object-src 'none'; frame-src 'self' https://cloud.reflexappointment.nl
Cache-Control no-store
Referrer-Policy no-referrer, strict-origin-when-cross-origin
Vary Origin
Strict-Transport-Security max-age=631138519;includeSubDomains
X-Frame-Options SAMEORIGIN
X-Content-Type-Options nosniff
X-XSS-Protection 1; mode=block
Content-Type text/html;charset=UTF-8
Transfer-Encoding chunked
Date Thu, 20 Aug 2026 10:57:22 GMT
