Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 8.152.5.2 |
| Server Software | Tengine |
| Compression | gzip |
|
🕐 🟡 Slow Response (1100 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). |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 8.152.5.2
Server Software Tengine
Compression gzip
🕐 🟡 Slow Response (1100 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).
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://zhulong.com:443 | 301 | HTTP/2 301 |
| 2 | https://www.zhulong.com/ | 200 | HTTP/2 200 |
#1 URL https://zhulong.com:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.zhulong.com/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 458.1 ms |
| TCP Connect | 617.5 ms |
| TLS Handshake | 320.9 ms |
| Time To First Byte (TTFB) | 1099.8 ms |
| Content Download | 0.1 ms |
| Total Response Time | 1099.9 ms |
DNS Lookup 458.1 ms
TCP Connect 617.5 ms
TLS Handshake 320.9 ms
Time To First Byte (TTFB) 1099.8 ms
Content Download 0.1 ms
Total Response Time 1099.9 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
HTTP Headers
| Server
| Tengine |
| Date
| Sun, 30 Aug 2026 15:42:26 GMT |
| Content-type
| text/html |
| Vary
| Accept-Encoding |
| Last-modified
| Thu, 13 Aug 2026 07:33:37 GMT |
| Etag
| W/"6a7d7351-6ca" |
| Content-encoding
| gzip |
Meta Tags
| X-UA-Compatible | IE=edge |
| Viewport | width=device-width,initial-scale=1 |
| Google | notranslate |
Server Tengine
Date Sun, 30 Aug 2026 15:42:26 GMT
Content-type text/html
Vary Accept-Encoding
Last-modified Thu, 13 Aug 2026 07:33:37 GMT
Etag W/"6a7d7351-6ca"
Content-encoding gzip
