What powers gem.com.cn?
Last seen Sep 2026 · 20 technologies across 11 categories
Analytics
Baidu Analytics (百度统计)
since Jul 2022
CDN
Alibaba Cloud CDN
since Apr 2023
JavaScript frameworks
JavaScript graphics
ECharts
since Oct 2024
JavaScript libraries
Miscellaneous
Babel
since Oct 2024
Operating systems
Windows Server
since Jul 2022
Programming languages
Java
since Oct 2024
UI frameworks
Animate.css
since Jul 2022
Ant Design
since Oct 2024
Web frameworks
Microsoft ASP.NET
since Jul 2022
Web servers
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Oct 2026. A recent check saw a policy file missing; awaiting confirmation.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
All crawlers blocked
Audience
- 78% desktop
- 22% phone
Indonesia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.92 / 10 · ranked #1,728,973 of all domains
32 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Chinese (China)
- Weight: 25.2 MB · 83 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- GEM Co., Ltd.
From Wikidata (CC0).
Infrastructure
- Email: netease.com
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Beijing Xinchacha Credit Management Co., Ltd., RSA 2048, wildcard, expires Apr 2027
- Common Crawl link graph: rank 7,024,665, 5 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| oa2.gem.com.cn | 13 |
| www.gem.com.cn | 8 |
| en.gem.com.cn | 7 |
| mail.gem.com.cn | 1 |