What powers rikkei.edu.vn?
Last seen Aug 2026 · 48 technologies across 22 categories
Analytics
Authentication
CDN
CMS
Databases
Development
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Live chat
Maps
Marketing automation
Miscellaneous
Operating systems
Performance
Programming languages
Security
Tag managers
UI frameworks
Web servers
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
- Aug 2026 *: Allowed (was Restricted)
AI Crawlers
No AI crawlers blocked
Audience
- 95% desktop
- 5% phone
Vietnam
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.87 / 10 · ranked #260,255 of all domains
310 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 225 ms |
| CLS | 0.15 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Vietnamese
- Weight: 10.2 MB · 58 requests
- WordPress theme: hoabinhweb-v3-154 (child: hoabinhweb-v3-154-child-theme) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on SUPERDATA-AS-VN SUPERDATA- (103.77.162.44)
- DNS: pavietnam.vn
- Email: larksuite.com
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 6,903,385, 10 hosts
- Verified with: Google, Lark
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| rikkei.edu.vn | 19 |
| japan.rikkei.edu.vn | 17 |
| laptrinhfullstack.rikkei.edu.vn | 15 |
| internship.rikkei.edu.vn | 14 |
| huongnghiep.rikkei.edu.vn | 12 |
| portal.rikkei.edu.vn | 12 |
| pm.rikkei.edu.vn | 11 |
| vju.rikkei.edu.vn | 11 |
| dataanalysis.rikkei.edu.vn | 10 |
| embedded.rikkei.edu.vn | 9 |
| javabackend.rikkei.edu.vn | 9 |
| tester.rikkei.edu.vn | 9 |
| qldt.rikkei.edu.vn | 8 |
| qtkds.rikkei.edu.vn | 8 |
| hocbonglaptrinh.rikkei.edu.vn | 4 |
| api1.rikkei.edu.vn | 2 |
| bkfintech.rikkei.edu.vn | 2 |
| cunl.rikkei.edu.vn | 2 |
| hoconline.rikkei.edu.vn | 2 |
| test.rikkei.edu.vn | 2 |
Full technology history →
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Recent changes
- dropped GTranslate Jan 2026
- dropped Moment.js Dec 2025
- dropped MUI Dec 2025
- detected Flickity Nov 2025
- detected GTranslate Nov 2025
- detected MetaSlider Nov 2025
- detected reCAPTCHA Nov 2025