Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 47.93.212.209 |
| Server Software | nginx |
| Compression | gzip |
|
🔒 🟡 Mixed Content (13 HTTP resources) | The page is served over HTTPS but loads 13 resource(s) over HTTP. This may be blocked in modern browsers. |
|
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 47.93.212.209
Server Software nginx
Compression gzip
🔒 🟡 Mixed Content (13 HTTP resources) The page is served over HTTPS but loads 13 resource(s) over HTTP. This may be blocked in modern browsers.
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://www.dbkjedu.com:443 | 301 | HTTP/2 301 |
| 2 | https://www.dbkjedu.com/index.html | 200 | HTTP/2 200 |
#1 URL https://www.dbkjedu.com:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.dbkjedu.com/index.html
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 0.5 ms |
| TCP Connect | 198.4 ms |
| TLS Handshake | 209.7 ms |
| Time To First Byte (TTFB) | 804.1 ms |
| Content Download | 0.3 ms |
| Total Response Time | 804.4 ms |
DNS Lookup 0.5 ms
TCP Connect 198.4 ms
TLS Handshake 209.7 ms
Time To First Byte (TTFB) 804.1 ms
Content Download 0.3 ms
Total Response Time 804.4 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31536000 |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31536000
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | 长春市东北科技职业技术学校 |
| Meta Description | 长春市东北科技职业技术学校 |
Title 长春市东北科技职业技术学校
Meta Description 长春市东北科技职业技术学校
Detected Technologies
| Technology | jQuery Google Analytics Nginx PHP |
Technology jQuery Google Analytics Nginx PHP
HTTP Headers
| Server
| nginx |
| Date
| Wed, 22 Jul 2026 23:50:38 GMT |
| Content-type
| text/html |
| Last-modified
| Wed, 22 Jul 2026 00:33:37 GMT |
| Vary
| Accept-Encoding |
| Etag
| W/"6a600fe1-b922" |
| Strict-transport-security
| max-age=31536000 |
| Content-encoding
| gzip |
Meta Tags
| Content-Type | text/html; charset=utf-8 |
| Keywords | 长春市东北科技职业技术学校 |
| Description | 长春市东北科技职业技术学校 |
Server nginx
Date Wed, 22 Jul 2026 23:50:38 GMT
Content-type text/html
Last-modified Wed, 22 Jul 2026 00:33:37 GMT
Vary Accept-Encoding
Etag W/"6a600fe1-b922"
Strict-transport-security max-age=31536000
Content-encoding gzip
