Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 217.160.0.164 |
| Server Software | Apache |
| Compression | gzip |
|
🔒 🟡 Mixed Content (7 HTTP resources) | The page is served over HTTPS but loads 7 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). |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 217.160.0.164
Server Software Apache
Compression gzip
🔒 🟡 Mixed Content (7 HTTP resources) The page is served over HTTPS but loads 7 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).
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://sgs-bonn.com:443 | 302 | HTTP/2 302 |
| 2 | https://siebengebirgsschule.de | 200 | HTTP/2 200 |
#1 URL https://sgs-bonn.com:443
HTTP Status Code 302
Status HTTP/2 302
#2 URL https://siebengebirgsschule.de
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 22.9 ms |
| TCP Connect | 52.1 ms |
| TLS Handshake | 36.4 ms |
| Time To First Byte (TTFB) | 665 ms |
| Content Download | 20 ms |
| Total Response Time | 685 ms |
DNS Lookup 22.9 ms
TCP Connect 52.1 ms
TLS Handshake 36.4 ms
Time To First Byte (TTFB) 665 ms
Content Download 20 ms
Total Response Time 685 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 | Siebengebirgsschule Bonn – Verbundschule (LES) |
| Canonical | https://siebengebirgsschule.de/ |
| Robots Meta | max-image-preview:large |
Title Siebengebirgsschule Bonn – Verbundschule (LES)
Canonical https://siebengebirgsschule.de/
Robots Meta max-image-preview:large
Detected Technologies
| Technology | WordPress jQuery Google Analytics Apache PHP Node.js |
Technology WordPress jQuery Google Analytics Apache PHP Node.js
HTTP Headers
| Content-type
| text/html; charset=UTF-8 |
| X-ws-origin
| available |
| X-ws-ratelimit-limit
| 1000 |
| X-ws-ratelimit-remaining
| 999 |
| Date
| Mon, 27 Jul 2026 13:16:48 GMT |
| Server
| Apache |
| Link
| ; rel="https://api.w.org/", ; rel="alternate"; title="JSON"; type="application/json", ; rel=shortlink |
| Content-encoding
| gzip |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Robots | max-image-preview:large |
| Generator | WordPress 7.0.2 |
Content-type text/html; charset=UTF-8
X-ws-origin available
X-ws-ratelimit-limit 1000
X-ws-ratelimit-remaining 999
Date Mon, 27 Jul 2026 13:16:48 GMT
Server Apache
Link ; rel="https://api.w.org/", ; rel="alternate"; title="JSON"; type="application/json", ; rel=shortlink
Content-encoding gzip
