Zusätzliche Informationen für https://introductory.com
Technical Information
HTTP Status Code
200
HTTP Version
HTTP/1.1
HTTPS
✔ Available
IP Address
15.197.204.56
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 Code200 HTTP VersionHTTP/1.1 HTTPS✔ Available IP Address15.197.204.56 ℹ 🔵Missing HSTSHTTP Strict Transport Security is not configured. Recommended for HTTPS sites. ℹ 🔵Missing Content Security PolicyCSP is not configured. It helps prevent XSS attacks and content injection. ℹ 🔵Missing X-Frame-OptionsThe site can be embedded in iframes by third parties (clickjacking risk). ℹ 🔵No CompressionThe server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage.
Performance
DNS Lookup
22.7 ms
TCP Connect
23.7 ms
TLS Handshake
174.2 ms
Time To First Byte (TTFB)
282 ms
Content Download
0 ms
Total Response Time
282 ms
DNS Lookup22.7 ms TCP Connect23.7 ms TLS Handshake174.2 ms Time To First Byte (TTFB)282 ms Content Download0 ms Total Response Time282 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
HTTP Headers
Content-Type
text/html
Date
Thu, 20 Aug 2026 09:48:40 GMT
Content-Length
114
Content-Typetext/html DateThu, 20 Aug 2026 09:48:40 GMT Content-Length114
