Checking results for: www.c21.hk
Additional info for https://www.c21.hk
Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 58.64.216.18 |
| Server Software | Microsoft-IIS/8.5 |
| Compression | gzip |
|
🔒 🟡 Mixed Content (4 HTTP resources) | The page is served over HTTPS but loads 4 resource(s) over HTTP. This may be blocked in modern browsers. |
|
🕐 🟡 Slow Response (1758 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 58.64.216.18
Server Software Microsoft-IIS/8.5
Compression gzip
🔒 🟡 Mixed Content (4 HTTP resources) The page is served over HTTPS but loads 4 resource(s) over HTTP. This may be blocked in modern browsers.
🕐 🟡 Slow Response (1758 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).
Performance
| DNS Lookup | 453.2 ms |
| TCP Connect | 643.5 ms |
| TLS Handshake | 402.1 ms |
| Time To First Byte (TTFB) | 1563.3 ms |
| Content Download | 194.7 ms |
| Total Response Time | 1758 ms |
DNS Lookup 453.2 ms
TCP Connect 643.5 ms
TLS Handshake 402.1 ms
Time To First Byte (TTFB) 1563.3 ms
Content Download 194.7 ms
Total Response Time 1758 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 | 世紀21(香港) |
| Meta Description | 世紀21香港 - 提供商業和住宅地產代理服務。樓盤推介，論壇及相關資訊。 |
Title 世紀21(香港)
Meta Description 世紀21香港 - 提供商業和住宅地產代理服務。樓盤推介，論壇及相關資訊。
Detected Technologies
| Technology | Bootstrap jQuery Google Analytics Google Tag Manager Cloudflare |
Technology Bootstrap jQuery Google Analytics Google Tag Manager Cloudflare
HTTP Headers
| Cache-Control
| private |
| Content-Type
| text/html; charset=utf-8 |
| Content-Encoding
| gzip |
| Vary
| Accept-Encoding |
| Server
| Microsoft-IIS/8.5 |
| X-AspNetMvc-Version
| 5.2 |
| X-AspNet-Version
| 4.0.30319 |
| X-Powered-By
| ASP.NET |
| Date
| Sat, 25 Jul 2026 02:39:45 GMT |
| Content-Length
| 31011 |
Meta Tags
| Description | 世紀21香港 - 提供商業和住宅地產代理服務。樓盤推介，論壇及相關資訊。 |
| Title | Century21 Hong Kong Limited (世紀21香港) 地產 |
| Keywords | Hong Kong, Propert, News, World, 香港, 地產, 最新, 世界 |
| Viewport | width=device-width, initial-scale=1 |
| Content-Type | text/html; charset=UTF-8 |
| X-UA-Compatible | IE=edge |
Cache-Control private
Content-Type text/html; charset=utf-8
Content-Encoding gzip
Vary Accept-Encoding
Server Microsoft-IIS/8.5
X-AspNetMvc-Version 5.2
X-AspNet-Version 4.0.30319
X-Powered-By ASP.NET
Date Sat, 25 Jul 2026 02:39:45 GMT
Content-Length 31011
Description 世紀21香港 - 提供商業和住宅地產代理服務。樓盤推介，論壇及相關資訊。
Title Century21 Hong Kong Limited (世紀21香港) 地產
Keywords Hong Kong, Propert, News, World, 香港, 地產, 最新, 世界
Viewport width=device-width, initial-scale=1
Content-Type text/html; charset=UTF-8
X-UA-Compatible IE=edge
