Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 159.223.210.207 |
| Server Software | Apache/2.4.58 (Ubuntu) |
| Compression | gzip |
|
🔒 🟡 Mixed Content (2 HTTP resources) | The page is served over HTTPS but loads 2 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 159.223.210.207
Server Software Apache/2.4.58 (Ubuntu)
Compression gzip
🔒 🟡 Mixed Content (2 HTTP resources) The page is served over HTTPS but loads 2 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).
Performance
| DNS Lookup | 4.1 ms |
| TCP Connect | 19.2 ms |
| TLS Handshake | 22.1 ms |
| Time To First Byte (TTFB) | 57 ms |
| Content Download | 0.2 ms |
| Total Response Time | 57.2 ms |
DNS Lookup 4.1 ms
TCP Connect 19.2 ms
TLS Handshake 22.1 ms
Time To First Byte (TTFB) 57 ms
Content Download 0.2 ms
Total Response Time 57.2 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 | Programming Tutorials and Source Code Examples |
| Meta Description | Programming Tutorials and Source Code Examples |
| Canonical | http://www.java2s.com |
Title Programming Tutorials and Source Code Examples
Meta Description Programming Tutorials and Source Code Examples
Canonical http://www.java2s.com
Detected Technologies
| Technology | Bootstrap Google Analytics Apache Node.js |
Technology Bootstrap Google Analytics Apache Node.js
HTTP Headers
| Date
| Thu, 20 Aug 2026 01:02:56 GMT |
| Server
| Apache/2.4.58 (Ubuntu) |
| Last-Modified
| Tue, 14 Apr 2026 12:22:44 GMT |
| ETag
| "63ee-64f6aa8008d00-gzip" |
| Accept-Ranges
| bytes |
| Vary
| Accept-Encoding |
| Content-Encoding
| gzip |
| Content-Length
| 4910 |
| Content-Type
| text/html |
Meta Tags
| Content-Type | text/html; charset=UTF-8 |
| X-UA-Compatible | IE=edge |
| Viewport | width=900 |
| Content-style-type | text/css |
| Copyright | 2013 Demo Source and Support Ltd. |
| Description | Programming Tutorials and Source Code Examples |
| Keywords | Programming Tutorials and Source Code Examples |
Date Thu, 20 Aug 2026 01:02:56 GMT
Server Apache/2.4.58 (Ubuntu)
Last-Modified Tue, 14 Apr 2026 12:22:44 GMT
ETag "63ee-64f6aa8008d00-gzip"
Accept-Ranges bytes
Vary Accept-Encoding
Content-Encoding gzip
Content-Length 4910
Content-Type text/html
