40
/ 100
F
Poor
Overall Domain Score
SEO 31 · LLM 27 · Perf 64
31
🔍 SEO Score
4 / 13 checks passed
27
🤖 LLM Readiness
3 / 11 checks passed
64
⚡ Performance
7 / 11 checks passed
📝 Extracted Page Tags
Title Tag
学堂在线 - 精品在线课程学习平台
Meta Description
学堂在线是清华大学于2013年10月发起建立的慕课平台，是教育部在线教育研究中心的研究交流和成果应用平台，是国家2016年首批双创示范基地项目，是中国高等教育学会产教融合研究分会副秘书长单位，也是联合国教科文组织（UNESCO）国际工程教育中心（ICEE）的在线教育平台。目前，学堂在线运行了来自清华大学、北京大学、复旦大学、中国科技大学，以及麻省理工学院、斯坦福大学、加州大学伯克利分校等国内外高校的超过2300门优质课程，覆盖13大学科门类。
H1 Heading
None found
Canonical URL
None found
🔍 SEO Audit
31/100❌ Title Tag
Length: 17 chars (Ideal: 30-60).
❌ Meta Description
Length: 223 chars (Ideal: 50-160).
❌ H1 Tag
Found 0 H1 tags. Exactly 1 is recommended.
❌ Canonical URL
Missing canonical tag.
❌ Open Graph Tags
Found 3 OG properties (4+ recommended).
✅ Indexability
Page allows indexing.
✅ Mobile Viewport
Viewport meta tag present.
✅ Image Alt Text
No images found.
❌ Sitemap
No sitemap found in robots.txt.
❌ Heading Hierarchy
Missing H1 or H2 tags.
❌ Internal Links
Found 0 internal links.
❌ HSTS Security
Missing HSTS header.
✅ HTTPS
Loads securely over HTTPS.
🤖 LLMO
27/100❌ Structured Data (JSON-LD)
No JSON-LD found.
❌ Schema Entities
No schema entities.
❌ FAQ Schema
Missing FAQ schema.
✅ Contextual Summary
Description provides good AI context.
✅ E-E-A-T (Author)
Author identity found.
❌ Organisation Schema
Missing Organization schema.
❌ Breadcrumb Schema
Missing BreadcrumbList.
✅ AI Crawler Access
AI agents not blocked.
❌ Language Declaration
Missing <html> lang attribute.
❌ Semantic Structure
No semantic HTML5 wrappers.
❌ Entity Verification Links
No entity validation links.
⚡ Performance
64/100Network Waterfall (Total: 5877ms)
- DNS: 1510ms
- Connect: 1580ms
- TTFB: 2382ms
- Download: 3495ms
❌ Time to First Byte (TTFB)
TTFB: 2382ms (Target: < 600ms).
✅ HTML Payload Size
Raw HTML: 2.3KB (Target: < 150KB).
✅ Text Compression
Compression enabled (gzip).
✅ Cache Policies
Cache-Control headers set.
❌ CDN Usage
No CDN headers found.
✅ Secure Delivery (HTTPS)
Served securely.
❌ Modern Protocol
Using HTTP/1.1.
❌ Native Lazy Loading
No lazy loading detected.
✅ Minified Assets
Minified .js/.css referenced.
✅ Preload / Preconnect Hints
Resource hints found.
✅ Character Set
UTF-8 declared.
🛡️ Security & Blacklist
Clean✅ Domain is clean.
⚙️ Technologies
E-Commerce
Magento
📋 WHOIS
Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Registered
2013-09-10
Expires
2030-09-10
Last Updated
2023-03-20
Status
active
Name Servers
ns3.dnsv4.com, ns4.dnsv4.com
🔗 DNS Records
| Type | Value |
|---|---|
| A | 101.200.223.164 |
| MX | mxbiz1.qq.com |
| MX | mxbiz2.qq.com |
| TXT | v=spf1 include:spf.mail.qq.com ~all |
| NS | ns3.dnsv4.com |
| NS | ns4.dnsv4.com |