Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 172.67.194.212 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
🔒 🟡 Mixed Content (2 HTTP resources) | The page is served over HTTPS but loads 2 resource(s) over HTTP. This may be blocked in modern browsers. |
|
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 172.67.194.212
Server Software cloudflare
CDN Cloudflare
Compression gzip
🔒 🟡 Mixed Content (2 HTTP resources) The page is served over HTTPS but loads 2 resource(s) over HTTP. This may be blocked in modern browsers.
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://optolong.com:443 | 302 | HTTP/2 302 |
| 2 | https://optolong.com/cms/index/index.html | 200 | HTTP/2 200 |
#1 URL https://optolong.com:443
HTTP Status Code 302
Status HTTP/2 302
#2 URL https://optolong.com/cms/index/index.html
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 4.1 ms |
| TCP Connect | 5.8 ms |
| TLS Handshake | 8 ms |
| Time To First Byte (TTFB) | 443.9 ms |
| Content Download | 0.2 ms |
| Total Response Time | 444 ms |
DNS Lookup 4.1 ms
TCP Connect 5.8 ms
TLS Handshake 8 ms
Time To First Byte (TTFB) 443.9 ms
Content Download 0.2 ms
Total Response Time 444 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 | Optolong Optics Co.,Ltd. |
Title Optolong Optics Co.,Ltd.
Detected Technologies
| Technology | jQuery Cloudflare PHP Node.js |
Technology jQuery Cloudflare PHP Node.js
HTTP Headers
| Date
| Wed, 22 Jul 2026 14:29:38 GMT |
| Content-type
| text/html; charset=utf-8 |
| Set-cookie
| jiu97_home___jump_url__=%2Fcms%2Findex%2Findex.html; path=/ |
| Server
| cloudflare |
| Cf-cache-status
| DYNAMIC |
| Nel
| {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800} |
| Report-to
| {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=eIsJ0AdruUquuOwx978F5fhgS5Yj%2FYaBRT8yTYSQKsUgM1l0ly1P%2FcEO1PyG5ZZU3HTUF%2FLny%2F4vXu5m4Q4fkVLBietagcQnhDb3PwQ1zkr4qZaUuUaARhExALTtYQW5%2F0cuZrKpDuuzou4%3D"}]} |
| Content-encoding
| gzip |
| Cf-ray
| a1f3238368fa7028-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Keywords | Optolong Optics Co.,Ltd. official |
| Viewport | width=device-width,initial-scale=1,maximum-scale=1.0 |
Date Wed, 22 Jul 2026 14:29:38 GMT
Content-type text/html; charset=utf-8
Set-cookie jiu97_home___jump_url__=%2Fcms%2Findex%2Findex.html; path=/
Server cloudflare
Cf-cache-status DYNAMIC
Nel {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Report-to {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=eIsJ0AdruUquuOwx978F5fhgS5Yj%2FYaBRT8yTYSQKsUgM1l0ly1P%2FcEO1PyG5ZZU3HTUF%2FLny%2F4vXu5m4Q4fkVLBietagcQnhDb3PwQ1zkr4qZaUuUaARhExALTtYQW5%2F0cuZrKpDuuzou4%3D"}]}
Content-encoding gzip
Cf-ray a1f3238368fa7028-CDG
Alt-svc h3=":443"; ma=86400
