Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 122.228.223.17 |
| Server Software | Tengine |
| Compression | gzip |
|
🕐 🟡 Slow Response (2241 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. |
|
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 122.228.223.17
Server Software Tengine
Compression gzip
🕐 🟡 Slow Response (2241 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.
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
Performance
| DNS Lookup | 452.1 ms |
| TCP Connect | 686.7 ms |
| TLS Handshake | 266.1 ms |
| Time To First Byte (TTFB) | 1956 ms |
| Content Download | 284.5 ms |
| Total Response Time | 2240.6 ms |
DNS Lookup 452.1 ms
TCP Connect 686.7 ms
TLS Handshake 266.1 ms
Time To First Byte (TTFB) 1956 ms
Content Download 284.5 ms
Total Response Time 2240.6 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 | 上海灵龟机器人有限公司 - ROS小课堂 |
| Meta Description | 上海灵龟机器人有限公司 |
| Canonical | https://www.corvin.cn |
| Robots Meta | max-image-preview:large |
| Open Graph Title | 上海灵龟机器人有限公司 - ROS小课堂 |
| Open Graph Description | 上海灵龟机器人有限公司 |
Title 上海灵龟机器人有限公司 - ROS小课堂
Meta Description 上海灵龟机器人有限公司
Canonical https://www.corvin.cn
Robots Meta max-image-preview:large
Open Graph Title 上海灵龟机器人有限公司 - ROS小课堂
Open Graph Description 上海灵龟机器人有限公司
Detected Technologies
| Technology | WordPress Vue.js Google Analytics PHP |
Technology WordPress Vue.js Google Analytics PHP
HTTP Headers
| Server
| Tengine |
| Content-type
| text/html; charset=UTF-8 |
| Strict-transport-security
| max-age=31536000 |
| Date
| Tue, 21 Jul 2026 15:57:28 GMT |
| Vary
| Accept-Encoding |
| Content-encoding
| gzip |
| Via
| ens-cache4.l2eo166-17[449,0], kunlun15.cn5212[460,0] |
| Timing-allow-origin
| * |
| Eagleid
| 7ae4df2317846494479507762e |
Meta Tags
| Content-Type | text/html; charset=UTF-8 |
| Viewport | width=device-width,initial-scale=1,maximum-scale=1,minimum-scale=1,user-scalable=no,viewport-fit=cover |
| Apple-mobile-web-app-capable | yes |
| Cache-Control | no-siteapp |
| Renderer | webkit |
| Force-rendering | webkit |
| Robots | max-image-preview:large |
| Description | 上海灵龟机器人有限公司 |
| Keywords | ROS小课堂 |
Server Tengine
Content-type text/html; charset=UTF-8
Strict-transport-security max-age=31536000
Date Tue, 21 Jul 2026 15:57:28 GMT
Vary Accept-Encoding
Content-encoding gzip
Via ens-cache4.l2eo166-17[449,0], kunlun15.cn5212[460,0]
Timing-allow-origin *
Eagleid 7ae4df2317846494479507762e
