Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 202.38.64.246 |
| Server Software | nginx |
| Compression | gzip |
|
🔒 🟡 Mixed Content (32 HTTP resources) | The page is served over HTTPS but loads 32 resource(s) over HTTP. This may be blocked in modern browsers. |
|
🕐 🟡 Slow Response (1470 ms) | Response time exceeds 1 second. Consider optimizing the server or using caching. |
|
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 202.38.64.246
Server Software nginx
Compression gzip
🔒 🟡 Mixed Content (32 HTTP resources) The page is served over HTTPS but loads 32 resource(s) over HTTP. This may be blocked in modern browsers.
🕐 🟡 Slow Response (1470 ms) Response time exceeds 1 second. Consider optimizing the server or using caching.
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
Performance
| DNS Lookup | 653.4 ms |
| TCP Connect | 921.9 ms |
| TLS Handshake | 263.6 ms |
| Time To First Byte (TTFB) | 1469.6 ms |
| Content Download | 0.4 ms |
| Total Response Time | 1470 ms |
DNS Lookup 653.4 ms
TCP Connect 921.9 ms
TLS Handshake 263.6 ms
Time To First Byte (TTFB) 1469.6 ms
Content Download 0.4 ms
Total Response Time 1470 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=15769000 |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=15769000
CSP ⚠ Not configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
Title 中国科学技术大学
Detected Technologies
| Technology | jQuery Google Analytics Nginx PHP |
Technology jQuery Google Analytics Nginx PHP
HTTP Headers
| Server
| nginx |
| Date
| Fri, 24 Jul 2026 11:10:30 GMT |
| Content-type
| text/html |
| Content-length
| 7144 |
| X-frame-options
| SAMEORIGIN |
| Last-modified
| Fri, 24 Jul 2026 08:35:42 GMT |
| Accept-ranges
| bytes |
| Vary
| User-Agent,Accept-Encoding |
| Cache-control
| private, max-age=600 |
| Expires
| Fri, 24 Jul 2026 11:20:30 GMT |
| Content-encoding
| gzip |
| Etag
| "9cef-6575742177317-gzip" |
| Content-language
| zh-CN |
| Strict-transport-security
| max-age=15769000 |
Meta Tags
| Keywords | 中国科学技术大学 |
| Viewport | width=device-width,user-scalable=0,initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0 |
| Renderer | webkit |
Server nginx
Date Fri, 24 Jul 2026 11:10:30 GMT
Content-type text/html
Content-length 7144
X-frame-options SAMEORIGIN
Last-modified Fri, 24 Jul 2026 08:35:42 GMT
Accept-ranges bytes
Vary User-Agent,Accept-Encoding
Cache-control private, max-age=600
Expires Fri, 24 Jul 2026 11:20:30 GMT
Content-encoding gzip
Etag "9cef-6575742177317-gzip"
Content-language zh-CN
Strict-transport-security max-age=15769000
