Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 8.141.17.31 |
| Server Software | nginx |
| Compression | gzip |
|
🔒 🟡 Mixed Content (1 HTTP resources) | The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers. |
|
🕐 🔴 Very Slow Response (3949 ms) | Response time exceeds 3 seconds. This severely impacts SEO and user experience. |
|
ℹ 🔵 Missing HSTS | HTTP Strict Transport Security is not configured. Recommended for HTTPS sites. |
|
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 8.141.17.31
Server Software nginx
Compression gzip
🔒 🟡 Mixed Content (1 HTTP resources) The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers.
🕐 🔴 Very Slow Response (3949 ms) Response time exceeds 3 seconds. This severely impacts SEO and user experience.
ℹ 🔵 Missing HSTS HTTP Strict Transport Security is not configured. Recommended for HTTPS sites.
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://263.net:443 | 301 | HTTP/1.1 301 Moved Permanently |
| 2 | https://www.263.net/ | 200 | HTTP/1.1 200 OK |
#1 URL https://263.net:443
HTTP Status Code 301
Status HTTP/1.1 301 Moved Permanently
#2 URL https://www.263.net/
HTTP Status Code 200
Status HTTP/1.1 200 OK
Performance
| DNS Lookup | 167.2 ms |
| TCP Connect | 404.5 ms |
| TLS Handshake | 1801.9 ms |
| Time To First Byte (TTFB) | 3947.9 ms |
| Content Download | 1.1 ms |
| Total Response Time | 3948.9 ms |
DNS Lookup 167.2 ms
TCP Connect 404.5 ms
TLS Handshake 1801.9 ms
Time To First Byte (TTFB) 3947.9 ms
Content Download 1.1 ms
Total Response Time 3948.9 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ✔ Configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ✔ nosniff |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ✔ Configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ✔ nosniff
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | 企业邮箱_智能客服-263云通信 |
| Meta Description | 263企业邮箱由北京二六三企业通信有限公司（263云通信）提供，深耕企业通信服务29年，为15万+企业提供企业邮箱申请、公司邮箱注册、域名邮箱及邮件安全管理服务。企业邮箱价格便宜性价比高，收费标准清晰，收发稳定靠谱、安全防护与多端使用，满足中小企业、集团公司及政企客户的办公通信需求。 |
Title 企业邮箱_智能客服-263云通信
Meta Description 263企业邮箱由北京二六三企业通信有限公司（263云通信）提供，深耕企业通信服务29年，为15万+企业提供企业邮箱申请、公司邮箱注册、域名邮箱及邮件安全管理服务。企业邮箱价格便宜性价比高，收费标准清晰，收发稳定靠谱、安全防护与多端使用，满足中小企业、集团公司及政企客户的办公通信需求。
Detected Technologies
| Technology | jQuery Google Analytics Nginx |
Technology jQuery Google Analytics Nginx
HTTP Headers
| Server
| nginx |
| Date
| Thu, 20 Aug 2026 07:06:21 GMT |
| Content-Type
| text/html; charset=utf-8 |
| Last-Modified
| Tue, 04 Aug 2026 04:14:48 GMT |
| Transfer-Encoding
| chunked |
| Connection
| keep-alive |
| Vary
| Accept-Encoding |
| ETag
| W/"6a716738-13ddf" |
| X-XSS-Protection
| 1; mode=block |
| X-Content-Type-Options
| nosniff |
| Content-Security-Policy
| script-src * 'unsafe-inline' 'unsafe-eval' 'self' *.263.net |
| Content-Encoding
| gzip |
Meta Tags
| Baidu-site-verification | codeva-vN2mlCRIS9 |
| Keywords | 企业邮箱,263企业邮箱官网,企业邮箱网页版,公司邮箱,外贸企业邮箱,企业邮箱注册 |
| Description | 263企业邮箱由北京二六三企业通信有限公司（263云通信）提供，深耕企业通信服务29年，为15万+企业提供企业邮箱申请、公司邮箱注册、域名邮箱及邮件安全管理服务。企业邮箱价格便宜性价比高，收费标准清晰，收发稳定靠谱、安全防护与多端使用，满足中小企业、集团公司及政企客户的办公通信需求。 |
| Bytedance-verification-code | TMRoMSm5GkaQ2yNeCjg4 |
| 360-site-verification | 82e644dead98d73d613d4928fd353c4d |
| Msvalidate.01 | 92CC02926A50392D85CD69821FC26AC7 |
| X-UA-Compatible | IE=edge |
| Viewport | width=device-width,user-scalable=no,initial-scale=1,minimum-scale=1,maximum-scale=1 |
Server nginx
Date Thu, 20 Aug 2026 07:06:21 GMT
Content-Type text/html; charset=utf-8
Last-Modified Tue, 04 Aug 2026 04:14:48 GMT
Transfer-Encoding chunked
Connection keep-alive
Vary Accept-Encoding
ETag W/"6a716738-13ddf"
X-XSS-Protection 1; mode=block
X-Content-Type-Options nosniff
Content-Security-Policy script-src * 'unsafe-inline' 'unsafe-eval' 'self' *.263.net
Content-Encoding gzip
