Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 80.239.207.166 |
| Server Software | nginx |
|
🔒 🟡 Mixed Content (8 HTTP resources) | The page is served over HTTPS but loads 8 resource(s) over HTTP. This may be blocked in modern browsers. |
|
ℹ 🔵 Missing HSTS | HTTP Strict Transport Security is not configured. Recommended for HTTPS sites. |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
|
ℹ 🔵 Missing X-Frame-Options | The site can be embedded in iframes by third parties (clickjacking risk). |
|
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 80.239.207.166
Server Software nginx
🔒 🟡 Mixed Content (8 HTTP resources) The page is served over HTTPS but loads 8 resource(s) over HTTP. This may be blocked in modern browsers.
ℹ 🔵 Missing HSTS HTTP Strict Transport Security is not configured. Recommended for HTTPS sites.
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
ℹ 🔵 No Compression The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage.
Performance
| DNS Lookup | 51.2 ms |
| TCP Connect | 78.8 ms |
| TLS Handshake | 31.7 ms |
| Time To First Byte (TTFB) | 165.2 ms |
| Content Download | 0 ms |
| Total Response Time | 165.2 ms |
DNS Lookup 51.2 ms
TCP Connect 78.8 ms
TLS Handshake 31.7 ms
Time To First Byte (TTFB) 165.2 ms
Content Download 0 ms
Total Response Time 165.2 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Offenes Deutsches Schulnetz |
Title Offenes Deutsches Schulnetz
Detected Technologies
| Technology | Google Analytics Nginx |
Technology Google Analytics Nginx
HTTP Headers
| Server
| nginx |
| Date
| Tue, 21 Jul 2026 03:10:42 GMT |
| Content-type
| text/html |
| Content-length
| 9560 |
| Last-modified
| Tue, 07 Jul 2026 17:20:13 GMT |
| Etag
| "6a4d354d-2558" |
| X-powered-by
| PleskLin |
| Accept-ranges
| bytes |
Meta Tags
| Content-Type | text/html; charset=ISO-8859-1 |
| GENERATOR | Microsoft FrontPage 4.0 |
Server nginx
Date Tue, 21 Jul 2026 03:10:42 GMT
Content-type text/html
Content-length 9560
Last-modified Tue, 07 Jul 2026 17:20:13 GMT
Etag "6a4d354d-2558"
X-powered-by PleskLin
Accept-ranges bytes
