edu.cn
中国教育和科研计算机网CERNET
Last scanned Aug 24, 2026, 1:15 PM · 14 views
Overall score
Great
Summary
中国教育网（中国教育和科研计算机网）是中国权威的教育门户网站，是了解中国教育的窗口。网站提供互联网技术、下一代互联网、高校科技、教育信息化、网络安�… This website uses jQuery. SEO is fair (60/100) and accessibility is good (85/100). Security scores good (85/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
中国教育网（中国教育和科研计算机网）是中国权威的教育门户网站，是了解中国教育的窗口。网站提供互联网技术、下一代互联网、高校科技、教育信息化、网络安全、中国教育等相关新闻动态及最新政策。
Top issues to fix
13 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
TLS certificate expires in 26 days
SecurityRenew soon or enable auto-renewal to avoid a browser-warning outage.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+7 more issues — details in the sections below.
SEO
7 issue(s) found
Performance
147 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Score history
-2 overall since Jul 26, 2026
- Overall
- 81
- SEO
- 60
- Security
- 85
- Performance
- 100
- Accessibility
- 85
Organization
Company details published in this site's own structured data.
中国教育网（中国教育和科研计算机网）是中国权威的教育门户网站，是了解中国教育的窗口。网站提供互联网技术、下一代互联网、高校科技、教育信息化、网络安全、中国教育等相关新闻动态及最新政策。
Contact
Email, phone, and address published on this site's own pages.
- webmaster@cernet.com
Meta tags
- Title
- 中国教育和科研计算机网CERNET
- Description
- 中国教育网（中国教育和科研计算机网）是中国权威的教育门户网站，是了解中国教育的窗口。网站提供互联网技术、下一代互联网、高校科技、教育信息化、网络安全、中国教育等相关新闻动态及最新政策。
- Canonical
- Language
- Charset
- utf-8
- Viewport
- Robots meta
- all
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- DigiCert Inc
- Subject
- www.edu.cn
- Valid from
- Sep 5, 2025
- Valid to
- Sep 19, 2026
- Days until expiry
- 26
- SAN domains
- www.edu.cn
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 2 · H2 1 · H3 0
Links
158 internal · 6 external · 20 broken
Images
12 total · 1 missing alt
Scripts / Styles
18 scripts · 1 stylesheets
JS / CSS size
3.7 KB · 792 B
Page size
40.4 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- Multiple H1 headings found
- 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://www.edu.cn
- Final URL
- https://www.edu.cn
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 147 ms
- HTML size
- 40.4 KB
- Redirect chain
- https://www.edu.cn
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does edu.cn use?
- edu.cn is built with jQuery.
- Is edu.cn secure (HTTPS)?
- Yes. edu.cn uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Sep 19, 2026.
- Who hosts edu.cn?
- Hosting provider information for edu.cn is not available yet.
- What is edu.cn's SEO score?
- edu.cn scored 60/100 for SEO in the latest analysis (fair).
- What is edu.cn's overall website score?
- edu.cn has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.
- Has edu.cn's score changed over time?
- edu.cn's overall score has declined by 2 points (from 83 to 81) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card