Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 42.187.161.231 |
| Server Software | Tengine |
| Compression | gzip |
|
🕐 🟡 Slow Response (1610 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 42.187.161.231
Server Software Tengine
Compression gzip
🕐 🟡 Slow Response (1610 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).
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://58.com:443 | 302 | HTTP/1.1 302 Found |
| 2 | https://bj.58.com/ | 200 | HTTP/1.1 200 OK |
#1 URL https://58.com:443
HTTP Status Code 302
Status HTTP/1.1 302 Found
#2 URL https://bj.58.com/
HTTP Status Code 200
Status HTTP/1.1 200 OK
Performance
| DNS Lookup | 452 ms |
| TCP Connect | 605.1 ms |
| TLS Handshake | 689.1 ms |
| Time To First Byte (TTFB) | 1600 ms |
| Content Download | 9.8 ms |
| Total Response Time | 1609.8 ms |
DNS Lookup 452 ms
TCP Connect 605.1 ms
TLS Handshake 689.1 ms
Time To First Byte (TTFB) 1600 ms
Content Download 9.8 ms
Total Response Time 1609.8 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 | 【58同城 58.com】北京分类信息 - 本地 免费 高效 |
| Meta Description | 58同城北京分类信息网，为你提供房产、招聘、黄页、团购、交友、二手、宠物、车辆、周边游等海量分类信息，充分满足您免费查看/发布信息的需求。北京58同城，专业的分类信息网。 |
Title 【58同城 58.com】北京分类信息 - 本地 免费 高效
Meta Description 58同城北京分类信息网，为你提供房产、招聘、黄页、团购、交友、二手、宠物、车辆、周边游等海量分类信息，充分满足您免费查看/发布信息的需求。北京58同城，专业的分类信息网。
Detected Technologies
| Technology | Google Analytics |
Technology Google Analytics
HTTP Headers
| Server
| Tengine |
| Date
| Thu, 20 Aug 2026 07:08:48 GMT |
| Content-Type
| text/html; charset=utf-8 |
| Transfer-Encoding
| chunked |
| Connection
| keep-alive |
| Accept-Ranges
| bytes |
| Etag
| W/"119111-1784790357000" |
| Last-Modified
| Thu, 23 Jul 2026 07:05:57 GMT |
| Content-Encoding
| gzip |
| Vary
| Accept-Encoding |
| P3P
| policyref="/w3c/p3p.xml", CP="CUR ADM OUR NOR STA NID" |
Meta Tags
| Baidu_union_verify | 6a9c3b64325384b84b41f782f525f351 |
| Msvalidate.01 | 7264877E75DD0DCD9660B95D2ABE189B |
| Content-Type | text/html; charset=utf-8 |
| Keywords | 北京分类信息,北京免费发布信息 |
| Description | 58同城北京分类信息网，为你提供房产、招聘、黄页、团购、交友、二手、宠物、车辆、周边游等海量分类信息，充分满足您免费查看/发布信息的需求。北京58同城，专业的分类信息网。 |
| Mobile-agent | format=wml; url=//m.58.com/bj/ |
Server Tengine
Date Thu, 20 Aug 2026 07:08:48 GMT
Content-Type text/html; charset=utf-8
Transfer-Encoding chunked
Connection keep-alive
Accept-Ranges bytes
Etag W/"119111-1784790357000"
Last-Modified Thu, 23 Jul 2026 07:05:57 GMT
Content-Encoding gzip
Vary Accept-Encoding
P3P policyref="/w3c/p3p.xml", CP="CUR ADM OUR NOR STA NID"
