Checking results for: gnu.org
Additional info for https://gnu.org
Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 209.51.188.116 |
| Server Software | Apache |
| Compression | gzip |
|
🔒 🟡 Mixed Content (3 HTTP resources) | The page is served over HTTPS but loads 3 resource(s) over HTTP. This may be blocked in modern browsers. |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 209.51.188.116
Server Software Apache
Compression gzip
🔒 🟡 Mixed Content (3 HTTP resources) The page is served over HTTPS but loads 3 resource(s) over HTTP. This may be blocked in modern browsers.
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://gnu.org:443 | 301 | HTTP/1.1 301 Moved Permanently |
| 2 | https://www.gnu.org/ | 200 | HTTP/1.1 200 OK |
#1 URL https://gnu.org:443
HTTP Status Code 301
Status HTTP/1.1 301 Moved Permanently
#2 URL https://www.gnu.org/
HTTP Status Code 200
Status HTTP/1.1 200 OK
Performance
| DNS Lookup | 116.1 ms |
| TCP Connect | 187.9 ms |
| TLS Handshake | 82.5 ms |
| Time To First Byte (TTFB) | 364 ms |
| Content Download | 52.2 ms |
| Total Response Time | 416.2 ms |
DNS Lookup 116.1 ms
TCP Connect 187.9 ms
TLS Handshake 82.5 ms
Time To First Byte (TTFB) 364 ms
Content Download 52.2 ms
Total Response Time 416.2 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=63072000 |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ sameorigin |
| X-Content-Type-Options | ✔ nosniff |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=63072000
CSP ⚠ Not configured
X-Frame-Options ✔ sameorigin
X-Content-Type-Options ✔ nosniff
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | The GNU Operating System and the Free Software Movement |
| Meta Description | Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use. |
Title The GNU Operating System and the Free Software Movement
Meta Description Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.
Detected Technologies
| Technology | Google Analytics Apache |
Technology Google Analytics Apache
HTTP Headers
| Date
| Thu, 20 Aug 2026 11:40:03 GMT |
| Server
| Apache |
| Content-Location
| home.html |
| Vary
| negotiate,accept-language,Accept-Encoding |
| TCN
| choice |
| Strict-Transport-Security
| max-age=63072000 |
| X-Frame-Options
| sameorigin |
| X-Content-Type-Options
| nosniff |
| Access-Control-Allow-Origin
| (null) |
| Accept-Ranges
| bytes |
| Cache-Control
| max-age=0 |
| Expires
| Thu, 20 Aug 2026 11:40:03 GMT |
| Content-Encoding
| gzip |
| Content-Length
| 9848 |
| Content-Type
| text/html |
| Content-Language
| en |
Meta Tags
| Content-type | text/html; charset=utf-8 |
| ICBM | 42.355469,-71.058627 |
| Keywords | GNU, FSF, Free Software Foundation, Linux, Emacs, GCC, Unix, Free Software, Libre Software, Operating System, GNU Kernel, GNU Hurd |
| Description | Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use. |
| Viewport | width=device-width, initial-scale=1 |
Date Thu, 20 Aug 2026 11:40:03 GMT
Server Apache
Content-Location home.html
Vary negotiate,accept-language,Accept-Encoding
TCN choice
Strict-Transport-Security max-age=63072000
X-Frame-Options sameorigin
X-Content-Type-Options nosniff
Access-Control-Allow-Origin (null)
Accept-Ranges bytes
Cache-Control max-age=0
Expires Thu, 20 Aug 2026 11:40:03 GMT
Content-Encoding gzip
Content-Length 9848
Content-Type text/html
Content-Language en
Content-type text/html; charset=utf-8
ICBM 42.355469,-71.058627
Keywords GNU, FSF, Free Software Foundation, Linux, Emacs, GCC, Unix, Free Software, Libre Software, Operating System, GNU Kernel, GNU Hurd
Description Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.
Viewport width=device-width, initial-scale=1
