gaokao.cn
ERROR: ACCESS DENIED
Last scanned Aug 24, 2026, 1:23 PM
Overall score
Fair
Summary
This website is hosted on CHINA169-Backbone - CHINA UNICOM China169 Backbone, CN. SEO is fair (60/100) and accessibility is good (85/100). Security scores poor (35/100) and performance excellent (100/100). Top issue: Missing meta description.
- China
- Hosted on CHINA169-Backbone - CHINA UNICOM China169 Backbone, CN
Top issues to fix
13 issues found · 5 high priority
No valid HTTPS/TLS certificate
SecurityServe the site over HTTPS (a free Let's Encrypt certificate works) — browsers mark HTTP sites as Not Secure and Google demotes them.
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.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
Missing viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
+7 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
611 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Meta tags
- Title
- ERROR: ACCESS DENIED
- Description
- Canonical
- Language
- Charset
- Viewport
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
No technologies detected.
Hosting & CDN
- Hosting provider
- CHINA169-Backbone - CHINA UNICOM China169 Backbone, CN
- CDN provider
- —
- IP address
- 221.204.95.145
- ASN
- AS4837 (CHINA169-Backbone - CHINA UNICOM China169 Backbone, CN)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
No TLS certificate information available.
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 0 · H3 0
Links
0 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
0 scripts · 0 stylesheets
JS / CSS size
0 B · 0 B
Page size
207 B
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Missing <html lang> attribute
- Missing viewport meta tag
Scan details
- Requested URL
- https://gaokao.cn
- Final URL
- http://www.gaokao.cn/
- HTTP status
- 403
- HTTP version
- HTTP/1.1
- Response time
- 611 ms
- HTML size
- 207 B
- Redirect chain
- https://gaokao.cn → http://www.gaokao.cn/
See something wrong on this report? Request a correction
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WAF拦截页面
Frequently asked questions
- What technology does gaokao.cn use?
- We did not detect any specific technologies for gaokao.cn in the latest scan.
- Is gaokao.cn secure (HTTPS)?
- gaokao.cn did not present a valid TLS certificate at the time of the last scan.
- Who hosts gaokao.cn?
- gaokao.cn is hosted on CHINA169-Backbone - CHINA UNICOM China169 Backbone, CN.
- What is gaokao.cn's SEO score?
- gaokao.cn scored 60/100 for SEO in the latest analysis (fair).
- What is gaokao.cn's overall website score?
- gaokao.cn has an overall SiteGraph score of 69/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card