zhihu.com | Analytics by SecurityHeaders

HTTP Headers report for zhihu.com

Header Name Header Data
HTTP status code 200
Referrer-Policy no-referrer-when-downgrade
X-Secng-Response 0.031000137329102
Server BLB/23.08.4.1
Strict-Transport-Security max-age=15552000; includeSubDomains
X-Dayu-Backend-Response 0.026
Content-Security-Policy default-src * blob:;img-src * data: blob: resource: t.captcha.qq.com *.dun.163yun.com *.dun.163.com *.126.net *.nosdn.127.net nos.netease.com;connect-src * wss: blob: resource:;frame-src 'self' *.zhihu.com mailto: tel: weixin: *.vzuu.com mo.m.taobao.com getpocket.com note.youdao.com safari-extension://com.evernote.safari.clipper-Q79WDW8YH9 blob: mtt: zhihujs: captcha.guard.qcloud.com pos.baidu.com dup.baidustatic.com openapi.baidu.com wappass.baidu.com passport.baidu.com *.cme.qcloud.com vs-cdn.tencent-cloud.com t.captcha.qq.com *.dun.163yun.com *.dun.163.com *.126.net *.nosdn.127.net nos.netease.com;script-src 'self' blob: *.zhihu.com g.alicdn.com qzonestyle.gtimg.cn res.wx.qq.com open.mobile.qq.com 'unsafe-eval' unpkg.zhimg.com unicom.zhimg.com resource: zhihu-live.zhimg.com captcha.gtimg.com captcha.guard.qcloud.com pagead2.googlesyndication.com cpro.baidustatic.com pos.baidu.com dup.baidustatic.com i.hao61.net jsapi.qq.com 'nonce-089300e5-1814-4c5d-9b2e-0f64b47bad5b' hm.baidu.com zz.bdstatic.com b.bdstatic.com imgcache.qq.com vs-cdn.tencent-cloud.com www.mangren.com www.yunmd.net zhihu.govwza.cn p.cnwza.cn gw.alipayobjects.com ssl.captcha.qq.com t.captcha.qq.com *.dun.163yun.com *.dun.163.com *.126.net *.nosdn.127.net nos.netease.com;style-src 'self' 'unsafe-inline' *.zhihu.com unpkg.zhimg.com unicom.zhimg.com resource: captcha.gtimg.com www.mangren.com ssl.captcha.qq.com t.captcha.qq.com *.dun.163yun.com *.dun.163.com *.126.net *.nosdn.127.net nos.netease.com;font-src * data:;frame-ancestors *.zhihu.com *.realsee.com *.realsee.cn
Expires 0
Eo-Log-Uuid 5259548675886038448
X-Xss-Protection 0
Cache-Control private, must-revalidate, no-cache, no-store, max-age=0
Content-Type text/html; charset=utf-8
Vary Accept-Encoding
Pragma no-cache
Connection keep-alive
Date Sun, 06 Apr 2025 13:21:28 GMT
Eo-Cache-Status MISS
X-Frame-Options SAMEORIGIN
Surrogate-Control no-store
X-Content-Type-Options nosniff

About the tool

By using SecurityHeaders.info, you can quickly identify missing or misconfigured headers and take steps to secure your website, improving both security and user confidence.

This tool is widely used by developers, security professionals, and organizations to ensure their websites adhere to best practices in web security.

We also have another analytic tool that is used for identifying popularity metrics, general information about the business, finding similar products and competitors, and much more.

Watch it now at TrustRadar