xuetangx.com
学堂在线 - 精品在线课程学习平台
Last scanned Jul 26, 2026, 12:19 PM
Overall score
Fair
Summary
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… This website is hosted on ELD-AS-AP - Edgenext Legend Dynasty Pte. Ltd., SG. SEO is fair (65/100) and accessibility is good (80/100). Security scores fair (65/100) and performance fair (70/100). Top issue: Meta description longer than 160 characters.
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。
- SC
- Hosted on ELD-AS-AP - Edgenext Legend Dynasty Pte. Ltd., SG
Top issues to fix
11 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.
2 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
+5 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
488 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Organization
Company details published in this site's own structured data.
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。
Contact
Email, phone, and address published on this site's own pages.
Source: https://www.xuetangx.com/contact
Meta tags
- Title
- 学堂在线 - 精品在线课程学习平台
- 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。
- Canonical
- Language
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1,maximum-scale=1,minimum-scale=1,user-scalable=no
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
No technologies detected.
Hosting & CDN
- Hosting provider
- ELD-AS-AP - Edgenext Legend Dynasty Pte. Ltd., SG
- CDN provider
- —
- IP address
- 156.225.96.198
- ASN
- AS139057 (ELD-AS-AP - Edgenext Legend Dynasty Pte. Ltd., SG)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- DigiCert, Inc.
- Subject
- *.xuetangx.com
- Valid from
- Aug 22, 2025
- Valid to
- Sep 22, 2026
- Days until expiry
- 56
- SAN domains
- *.xuetangx.com, xuetangx.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
0 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
14 scripts · 4 stylesheets
JS / CSS size
3.3 MB · 0 B
Page size
8.8 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- 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
- No H1 heading found
- Missing <html lang> attribute
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://xuetangx.com
- Final URL
- https://www.xuetangx.com/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 488 ms
- HTML size
- 8.8 KB
- Redirect chain
- https://xuetangx.com → https://www.xuetangx.com/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does xuetangx.com use?
- We did not detect any specific technologies for xuetangx.com in the latest scan.
- Is xuetangx.com secure (HTTPS)?
- Yes. xuetangx.com uses TLS 1.2 with a certificate issued by DigiCert, Inc., valid until Sep 22, 2026.
- Who hosts xuetangx.com?
- xuetangx.com is hosted on ELD-AS-AP - Edgenext Legend Dynasty Pte. Ltd., SG.
- What is xuetangx.com's SEO score?
- xuetangx.com scored 65/100 for SEO in the latest analysis (fair).
- What is xuetangx.com's overall website score?
- xuetangx.com has an overall SiteGraph score of 69/100, combining SEO, performance, security, and accessibility.
- Is xuetangx.com hiring?
- xuetangx.com has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card