Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 217.151.149.234 |
| Server Software | Apache |
|
🔒 🟡 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 🔵 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 217.151.149.234
Server Software Apache
🔒 🟡 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 🔵 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 | 28.4 ms |
| TCP Connect | 39.8 ms |
| TLS Handshake | 14.8 ms |
| Time To First Byte (TTFB) | 485.6 ms |
| Content Download | 8.8 ms |
| Total Response Time | 494.4 ms |
DNS Lookup 28.4 ms
TCP Connect 39.8 ms
TLS Handshake 14.8 ms
Time To First Byte (TTFB) 485.6 ms
Content Download 8.8 ms
Total Response Time 494.4 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 | Institut Kuhlmann |
| Canonical | https://institut-kuhlmann.de/ |
| Robots Meta | max-image-preview:large |
Title Institut Kuhlmann
Canonical https://institut-kuhlmann.de/
Robots Meta max-image-preview:large
Detected Technologies
| Technology | WordPress jQuery Google Analytics Apache PHP |
Technology WordPress jQuery Google Analytics Apache PHP
HTTP Headers
| Date
| Thu, 20 Aug 2026 06:49:12 GMT |
| Server
| Apache |
| Link
| ; rel="https://api.w.org/", ; rel="alternate"; title="JSON"; type="application/json", ; rel=shortlink |
| Expires
| Thu, 19 Nov 1981 08:52:00 GMT |
| Cache-Control
| no-store, no-cache, must-revalidate |
| Pragma
| no-cache |
| Transfer-Encoding
| chunked |
| Content-Type
| text/html; charset=UTF-8 |
Meta Tags
| Viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| Format-detection | telephone=yes |
| Robots | max-image-preview:large |
Date Thu, 20 Aug 2026 06:49:12 GMT
Server Apache
Link ; rel="https://api.w.org/", ; rel="alternate"; title="JSON"; type="application/json", ; rel=shortlink
Expires Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control no-store, no-cache, must-revalidate
Pragma no-cache
Transfer-Encoding chunked
Content-Type text/html; charset=UTF-8
