Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 137.208.57.37 |
| Server Software | Apache |
| Compression | gzip |
|
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 137.208.57.37
Server Software Apache
Compression gzip
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://r-project.org:443 | 301 | HTTP/2 301 |
| 2 | https://www.r-project.org/ | 200 | HTTP/2 200 |
#1 URL https://r-project.org:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.r-project.org/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 1.5 ms |
| TCP Connect | 21.8 ms |
| TLS Handshake | 23.9 ms |
| Time To First Byte (TTFB) | 66.6 ms |
| Content Download | 0.1 ms |
| Total Response Time | 66.7 ms |
DNS Lookup 1.5 ms
TCP Connect 21.8 ms
TLS Handshake 23.9 ms
Time To First Byte (TTFB) 66.6 ms
Content Download 0.1 ms
Total Response Time 66.7 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 | R: The R Project for Statistical Computing |
Title R: The R Project for Statistical Computing
Detected Technologies
| Technology | Bootstrap jQuery Google Analytics Apache |
Technology Bootstrap jQuery Google Analytics Apache
HTTP Headers
| Last-modified
| Wed, 19 Aug 2026 13:10:03 GMT |
| Etag
| "1bc1-659661f18a36b-gzip" |
| Accept-ranges
| bytes |
| Vary
| Accept-Encoding |
| Content-encoding
| gzip |
| Content-length
| 2689 |
| Content-type
| text/html |
| Date
| Wed, 19 Aug 2026 23:13:06 GMT |
| Server
| Apache |
Meta Tags
| X-UA-Compatible | IE=edge |
| Viewport | width=device-width, initial-scale=1 |
Last-modified Wed, 19 Aug 2026 13:10:03 GMT
Etag "1bc1-659661f18a36b-gzip"
Accept-ranges bytes
Vary Accept-Encoding
Content-encoding gzip
Content-length 2689
Content-type text/html
Date Wed, 19 Aug 2026 23:13:06 GMT
Server Apache
