Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 178.156.166.72 |
| Server Software | nginx |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
|
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 178.156.166.72
Server Software nginx
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
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://gnuradio.org:443 | 301 | HTTP/1.1 301 Moved Permanently |
| 2 | https://www.gnuradio.org/ | 200 | HTTP/1.1 200 OK |
#1 URL https://gnuradio.org:443
HTTP Status Code 301
Status HTTP/1.1 301 Moved Permanently
#2 URL https://www.gnuradio.org/
HTTP Status Code 200
Status HTTP/1.1 200 OK
Performance
| DNS Lookup | 12.2 ms |
| TCP Connect | 93.7 ms |
| TLS Handshake | 174.5 ms |
| Time To First Byte (TTFB) | 430.9 ms |
| Content Download | 0 ms |
| Total Response Time | 430.9 ms |
DNS Lookup 12.2 ms
TCP Connect 93.7 ms
TLS Handshake 174.5 ms
Time To First Byte (TTFB) 430.9 ms
Content Download 0 ms
Total Response Time 430.9 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=63072000; includeSubDomains; preload |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ DENY |
| X-Content-Type-Options | ✔ nosniff |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=63072000; includeSubDomains; preload
CSP ⚠ Not configured
X-Frame-Options ✔ DENY
X-Content-Type-Options ✔ nosniff
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
Title GNU Radio
Detected Technologies
| Technology | Bootstrap jQuery Google Analytics Cloudflare Nginx PHP |
Technology Bootstrap jQuery Google Analytics Cloudflare Nginx PHP
HTTP Headers
| Server
| nginx |
| Date
| Thu, 20 Aug 2026 02:25:39 GMT |
| Content-Type
| text/html |
| Content-Length
| 13269 |
| Last-Modified
| Mon, 17 Aug 2026 19:28:35 GMT |
| Connection
| keep-alive |
| Vary
| Accept-Encoding |
| ETag
| "6a8360e3-33d5" |
| Strict-Transport-Security
| max-age=63072000; includeSubDomains; preload |
| X-Frame-Options
| DENY |
| X-Content-Type-Options
| nosniff |
| X-XSS-Protection
| 1; mode=block |
| Accept-Ranges
| bytes |
Server nginx
Date Thu, 20 Aug 2026 02:25:39 GMT
Content-Type text/html
Content-Length 13269
Last-Modified Mon, 17 Aug 2026 19:28:35 GMT
Connection keep-alive
Vary Accept-Encoding
ETag "6a8360e3-33d5"
Strict-Transport-Security max-age=63072000; includeSubDomains; preload
X-Frame-Options DENY
X-Content-Type-Options nosniff
X-XSS-Protection 1; mode=block
Accept-Ranges bytes
