zhihu.com
知乎 - 有问题，就会有答案
Last scanned Jul 24, 2026, 6:17 PM
Overall score
Fair
Summary
知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命�… This website uses React hosted on ACE-AS-AP - ACE, SG. SEO is fair (65/100) and accessibility is good (75/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容，聚集了中文互联网科技、商业、影视、时尚、文化等领域最具创造力的人群，已成为综合性、全品类、在诸多领域具有关键影响力的知识分享社区和创作者聚集的原创内容平台，建立起了以社区驱动的内容变现商业模式。
- Singapore
- Hosted on ACE-AS-AP - ACE, SG
Top issues to fix
12 issues found · 3 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
+6 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
254 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Organization
Company details published in this site's own structured data.
知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容，聚集了中文互联网科技、商业、影视、时尚、文化等领域最具创造力的人群，已成为综合性、全品类、在诸多领域具有关键影响力的知识分享社区和创作者聚集的原创内容平台，建立起了以社区驱动的内容变现商业模式。
Contact
Email, phone, and address published on this site's own pages.
- jubao@zhihu.com
Meta tags
- Title
- 知乎 - 有问题，就会有答案
- Description
- 知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业、友善的社区氛围、独特的产品机制以及结构化和易获得的优质内容，聚集了中文互联网科技、商业、影视、时尚、文化等领域最具创造力的人群，已成为综合性、全品类、在诸多领域具有关键影响力的知识分享社区和创作者聚集的原创内容平台，建立起了以社区驱动的内容变现商业模式。
- Canonical
- Language
- zh
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1,maximum-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- ACE-AS-AP - ACE, SG
- CDN provider
- —
- IP address
- 43.159.108.169
- ASN
- AS139341 (ACE-AS-AP - ACE, SG)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- DigiCert, Inc.
- Subject
- *.zhihu.com
- Valid from
- Dec 11, 2025
- Valid to
- Dec 10, 2026
- Days until expiry
- 139
- SAN domains
- *.zhihu.com, zhihu.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
10 internal · 11 external · 4 broken
Images
5 total · 2 missing alt
Scripts / Styles
32 scripts · 5 stylesheets
JS / CSS size
868 KB · 558 KB
Page size
214 B
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 85
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- sitemap.xml not found
Accessibility issues
- More than 20% of images are missing alt text
- No H1 heading found
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://zhihu.com
- Final URL
- https://www.zhihu.com/
- HTTP status
- 403
- HTTP version
- HTTP/2
- Response time
- 254 ms
- HTML size
- 214 B
- Redirect chain
- https://zhihu.com → https://www.zhihu.com/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does zhihu.com use?
- zhihu.com is built with React.
- Is zhihu.com secure (HTTPS)?
- Yes. zhihu.com uses TLS 1.3 with a certificate issued by DigiCert, Inc., valid until Dec 10, 2026.
- Who hosts zhihu.com?
- zhihu.com is hosted on ACE-AS-AP - ACE, SG.
- What is zhihu.com's SEO score?
- zhihu.com scored 65/100 for SEO in the latest analysis (fair).
- What is zhihu.com's overall website score?
- zhihu.com has an overall SiteGraph score of 73/100, combining SEO, performance, security, and accessibility.
- Is zhihu.com hiring?
- zhihu.com has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
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