What powers ssis.edu.vn?
Last seen Sep 2026 · 58 technologies across 21 categories
Analytics
Cloudflare Browser Insights
since Jun 2021
Google Analytics
since Jun 2018
Microsoft Clarity
since Jan 2025
Authentication
Google Sign-in
since Feb 2023
CDN
Cloudflare
since Aug 2019
Google Hosted Libraries
since Feb 2022
CMS
WordPress
since Aug 2018
Databases
Editors
CodeMirror
since Jun 2018
Font scripts
Font Awesome
since Aug 2018
Google Font API
since Nov 2019
Issue trackers
JavaScript frameworks
JavaScript libraries
Htmx
since Nov 2025
libphonenumber
since Jun 2025
Lightbox
since Jul 2023
Select2
since Aug 2022
Selectize
since Nov 2022
Underscore.js
since Sep 2021
Miscellaneous
Gravatar
since Aug 2018
HTTP/3
since Sep 2022
Open Graph
since Sep 2022
RSS
since Dec 2022
Webpack
since Jun 2023
Operating systems
Ubuntu
since Aug 2018
Windows Server
since Feb 2023
Programming languages
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Jun 2018
UI frameworks
Video players
VideoJS
since May 2026
Web frameworks
Ruby on Rails
since Oct 2022
Web servers
Express
since Jun 2023
Webmail
Apple iCloud Mail
since Jan 2023
Google Workspace
since Aug 2022
WordPress plugins
WordPress Super Cache
since Mar 2020
WP-PageNavi
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 74% desktop
- 26% phone
Vietnam
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.29 / 10 · ranked #1,143,431 of all domains
42 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| INP | 75 ms |
| CLS | 0.25 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 42.7 MB · 97 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- SSIS - Saigon South International School (Saigon South International School on Wikidata)
- Founded: 1997
- Industry: Education (declares
EducationalOrganization) - Country: Vietnam
- Profiles: Facebook, Instagram, X
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Cloudflare (104.17.67.73)
- DNS: zonedns.vn
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC reject
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Jan 2027
- Common Crawl link graph: rank 166,954, 12 hosts
- Verified with: Apple Business, Autodesk, Google, Microsoft 365
DNS records as swept Aug 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.ssis.edu.vn | 27 |
| enews.ssis.edu.vn | 17 |
| osticket.ssis.edu.vn | 13 |
| blog.ssis.edu.vn | 11 |
| cas.ssis.edu.vn | 10 |
| hr-portal.ssis.edu.vn | 10 |
| helpdesk.ssis.edu.vn | 8 |
| link.ssis.edu.vn | 5 |
| support.ssis.edu.vn | 5 |
Full technology history →
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