Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 204.68.111.101 |
| Server Software | nginx |
| Compression | gzip |
|
🔒 🟡 Mixed Content (7 HTTP resources) | The page is served over HTTPS but loads 7 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). |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 204.68.111.101
Server Software nginx
Compression gzip
🔒 🟡 Mixed Content (7 HTTP resources) The page is served over HTTPS but loads 7 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).
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://gnuplot.info:443 | 301 | HTTP/1.1 301 Moved Permanently |
| 2 | http://gnuplot.info/ | 200 | HTTP/1.1 200 OK |
#1 URL https://gnuplot.info:443
HTTP Status Code 301
Status HTTP/1.1 301 Moved Permanently
#2 URL http://gnuplot.info/
HTTP Status Code 200
Status HTTP/1.1 200 OK
Performance
| DNS Lookup | 0.4 ms |
| TCP Connect | 135.9 ms |
| TLS Handshake | ~80 ms |
| Time To First Byte (TTFB) | 280.1 ms |
| Content Download | 0.1 ms |
| Total Response Time | 280.2 ms |
DNS Lookup 0.4 ms
TCP Connect 135.9 ms
TLS Handshake ~80 ms
Time To First Byte (TTFB) 280.1 ms
Content Download 0.1 ms
Total Response Time 280.2 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 gnuplot homepage
Detected Technologies
Technology Nginx
HTTP Headers
| Server
| nginx |
| Date
| Thu, 20 Aug 2026 00:09:35 GMT |
| Content-Type
| text/html |
| Transfer-Encoding
| chunked |
| Connection
| keep-alive |
| Vary
| Accept-Encoding |
| Last-modified
| Fri, 31 Jul 2026 17:24:09 GMT |
| Etag
| W/"1b7b-657eb74d4bc51" |
| Cache-control
| max-age=3600 |
| Expires
| Thu, 20 Aug 2026 01:09:31 GMT |
| X-from
| sfp-ioweb82-4 |
| Content-encoding
| gzip |
Meta Tags
| Content-Type | text/html; charset=utf-8 |
| GENERATOR | hands and eyes |
Server nginx
Date Thu, 20 Aug 2026 00:09:35 GMT
Content-Type text/html
Transfer-Encoding chunked
Connection keep-alive
Vary Accept-Encoding
Last-modified Fri, 31 Jul 2026 17:24:09 GMT
Etag W/"1b7b-657eb74d4bc51"
Cache-control max-age=3600
Expires Thu, 20 Aug 2026 01:09:31 GMT
X-from sfp-ioweb82-4
Content-encoding gzip
