What powers sflep.com?
Last seen Sep 2026 · 29 technologies across 13 categories
Analytics
Baidu Analytics (百度统计)
since Aug 2022
Google Analytics
since Jun 2018
Font scripts
Font Awesome
since Oct 2023
Google Font API
since Oct 2025
IaaS
Alibaba Cloud Object Storage Service
since Nov 2025
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
Windows Server
since Sep 2022
Programming languages
Security
HSTS
since Nov 2022
UI frameworks
Animate.css
since Aug 2022
Video players
JW Player
since Oct 2023
Web frameworks
Microsoft ASP.NET
since Sep 2022
Web servers
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 * removed from robots.txt
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 90% desktop
- 10% phone
United States
China
Japan
Hong Kong SAR China
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.89 / 10 · ranked #655,476 of all domains
46 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Alibaba
- Weight: 0.5 MB · 15 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Shanghai Foreign Language Education Press
- Founded: 1979
- Country: People's Republic of China
From Wikidata (CC0).
Infrastructure
- DNS: Tencent DNSPod
- Email: Tencent Exmail
- Email security: SPF (soft fail), no DMARC record
- SSL: DigiCert, RSA 2048, wildcard, expires Mar 2027
- Common Crawl link graph: rank 657,620, 36 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| sso.sflep.com | 10 |
| www.sflep.com | 9 |
| we.sflep.com | 8 |
| welearn.sflep.com | 8 |
| oldaudio.sflep.com | 6 |
| vocab.sflep.com | 6 |
| wetest.sflep.com | 6 |
| ict.sflep.com | 5 |
| wewrite.sflep.com | 5 |
| audio.sflep.com | 3 |