What powers 
diff.vn?
Last seen Sep 2026 · 38 technologies across 22 categories
Analytics
Authentication
CDN
CMS
Databases
Development
Font scripts
JavaScript frameworks
JavaScript libraries
Live chat
Miscellaneous
Performance
Programming languages
Security
Tag managers
UI frameworks
Web frameworks
Web servers
Widgets
WordPress plugins
WordPress themes
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 54% desktop
- 46% phone
Vietnam
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.17 / 10 · ranked #470,063 of all domains
81 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.4 s |
| INP | 100 ms |
| CLS | 0.25 |
| TTFB | 2500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Vietnamese (Vietnam)
- CDN: Incapsula
- Weight: 1.9 MB · 60 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Industry: Arts and entertainment (declares
Event)
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Imperva (Incapsula) (45.223.138.234)
- DNS: zonedns.vn
- Email: sungroup.com.vn
- Email security: SPF (soft fail), DMARC monitor only
- SSL: GlobalSign, RSA 2048, wildcard, expires Jan 2027
- Common Crawl link graph: rank 8,503,952, 2 hosts
- Verified with: GlobalSign, Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.diff.vn | 28 |
| diff.vn | 17 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped anime.js Jun 2026
- dropped Google AdSense Jun 2026
- dropped Google Font API Jun 2026
- dropped GSAP Jun 2026
- dropped Insider Jun 2026
- dropped Isotope Jun 2026
- dropped jQuery Migrate Jun 2026
- dropped Modernizr Jun 2026
- dropped prettyPhoto Jun 2026
- dropped reCAPTCHA Jun 2026
- dropped Snap.svg Jun 2026
- dropped Swiper Jun 2026
- dropped VideoJS Jun 2026
- dropped WordPress Super Cache Jun 2026
- dropped wpBakery Jun 2026
- dropped Appsflyer May 2026
- dropped Facebook Pixel May 2026
- detected Lenis May 2026
- detected Next.js May 2026
- detected Next.js App Router May 2026
- detected Node.js May 2026
- detected Priority Hints May 2026
- detected React May 2026
- detected Tailwind CSS May 2026
- detected Turbopack May 2026
- detected Webpack May 2026
- dropped YouTube May 2026