Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 43.135.83.2 |
| Server Software | BLB/25.12.0.2 |
| Compression | gzip |
|
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 43.135.83.2
Server Software BLB/25.12.0.2
Compression gzip
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://zhihu.com:443 | 301 | HTTP/2 301 |
| 2 | https://www.zhihu.com/ | 302 | HTTP/2 302 |
| 3 | https://www.zhihu.com//www.zhihu.com/signin?next=%2F | 200 | HTTP/2 200 |
#1 URL https://zhihu.com:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.zhihu.com/
HTTP Status Code 302
Status HTTP/2 302
#3 URL https://www.zhihu.com//www.zhihu.com/signin?next=%2F
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 4.1 ms |
| TCP Connect | 13.2 ms |
| TLS Handshake | 13.1 ms |
| Time To First Byte (TTFB) | 376.4 ms |
| Content Download | 0.2 ms |
| Total Response Time | 376.6 ms |
DNS Lookup 4.1 ms
TCP Connect 13.2 ms
TLS Handshake 13.1 ms
Time To First Byte (TTFB) 376.4 ms
Content Download 0.2 ms
Total Response Time 376.6 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| Referrer Policy | no-referrer-when-downgrade |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
Referrer Policy no-referrer-when-downgrade
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
Title 404 - 知乎
Detected Technologies
| Technology | Google Analytics |
Technology Google Analytics
HTTP Headers
| Server
| BLB/25.12.0.2 |
| Content-type
| text/html; charset=UTF-8 |
| Zhi-request-id
| 17868551198545766936 |
| Content-encoding
| gzip |
| Vary
| Accept-Encoding |
| Etag
| "17e9293473543c2a3836d3b6ef7ef779a8f67ca7" |
| X-dayu-backend-response
| 0.007 |
| Pragma
| no-cache |
| Referrer-policy
| no-referrer-when-downgrade |
| X-secng-response
| 0.013999938964844 |
| Set-cookie
| BEC=6ff32b60f55255af78892ba1e551063a;Path=/;Max-Age=3600 |
| Cache-control
| private, must-revalidate, no-cache, no-store, max-age=0 |
| Content-length
| 2261 |
| Alt-svc
| h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43" |
| Date
| Tue, 21 Jul 2026 15:12:58 GMT |
| Eo-log-uuid
| 17868551198545766936 |
| Eo-cache-status
| MISS |
Meta Tags
| Viewport | width=device-width, initial-scale=1.0 |
| X-UA-Compatible | ie=edge,chrome=1 |
| Renderer | webkit |
| Force-rendering | webkit |
Server BLB/25.12.0.2
Content-type text/html; charset=UTF-8
Zhi-request-id 17868551198545766936
Content-encoding gzip
Vary Accept-Encoding
Etag "17e9293473543c2a3836d3b6ef7ef779a8f67ca7"
X-dayu-backend-response 0.007
Pragma no-cache
Referrer-policy no-referrer-when-downgrade
X-secng-response 0.013999938964844
Set-cookie BEC=6ff32b60f55255af78892ba1e551063a;Path=/;Max-Age=3600
Cache-control private, must-revalidate, no-cache, no-store, max-age=0
Content-length 2261
Alt-svc h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
Date Tue, 21 Jul 2026 15:12:58 GMT
Eo-log-uuid 17868551198545766936
Eo-cache-status MISS
