Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 211.159.161.239 |
| Server Software | Apache/2.4.63 (Unix) OpenSSL/1.1.1d PHP/8.4.3 |
|
🕐 🟡 Slow Response (1138 ms) | Response time exceeds 1 second. Consider optimizing the server or using caching. |
|
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). |
|
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 211.159.161.239
Server Software Apache/2.4.63 (Unix) OpenSSL/1.1.1d PHP/8.4.3
🕐 🟡 Slow Response (1138 ms) Response time exceeds 1 second. Consider optimizing the server or using caching.
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).
ℹ 🔵 No Compression The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage.
Performance
| DNS Lookup | 101.2 ms |
| TCP Connect | 308.2 ms |
| TLS Handshake | 209.8 ms |
| Time To First Byte (TTFB) | 762.4 ms |
| Content Download | 376 ms |
| Total Response Time | 1138.4 ms |
DNS Lookup 101.2 ms
TCP Connect 308.2 ms
TLS Handshake 209.8 ms
Time To First Byte (TTFB) 762.4 ms
Content Download 376 ms
Total Response Time 1138.4 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 | IT技术大学习 - 技术文章与技术头条 |
| Meta Description | IT技术大学习是始于 2009 年的技术内容策展社区，整理公开技术文章与技术头条，提供低噪声、高可读的技术阅读入口。 |
Title IT技术大学习 - 技术文章与技术头条
Meta Description IT技术大学习是始于 2009 年的技术内容策展社区，整理公开技术文章与技术头条，提供低噪声、高可读的技术阅读入口。
Detected Technologies
| Technology | Bootstrap Google Analytics Cloudflare Nginx Apache PHP |
Technology Bootstrap Google Analytics Cloudflare Nginx Apache PHP
HTTP Headers
| Date
| Wed, 19 Aug 2026 23:25:52 GMT |
| Server
| Apache/2.4.63 (Unix) OpenSSL/1.1.1d PHP/8.4.3 |
| X-Powered-By
| PHP/8.4.3 |
| Expires
| Thu, 19 Nov 1981 08:52:00 GMT |
| Cache-Control
| no-store, no-cache, must-revalidate |
| Pragma
| no-cache |
| Transfer-Encoding
| chunked |
| Content-Type
| text/html; charset=utf-8 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Description | IT技术大学习是始于 2009 年的技术内容策展社区，整理公开技术文章与技术头条，提供低噪声、高可读的技术阅读入口。 |
Date Wed, 19 Aug 2026 23:25:52 GMT
Server Apache/2.4.63 (Unix) OpenSSL/1.1.1d PHP/8.4.3
X-Powered-By PHP/8.4.3
Expires Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control no-store, no-cache, must-revalidate
Pragma no-cache
Transfer-Encoding chunked
Content-Type text/html; charset=utf-8
