What powers k12online.vn?
Last seen Aug 2026 · 17 technologies across 13 categories
Analytics
Google Analytics
since Dec 2020
Font scripts
Google Font API
since Apr 2023
JavaScript libraries
OWL Carousel
since Dec 2020
Live chat
Facebook Chat Plugin
since Apr 2023
Miscellaneous
Open Graph
since Sep 2022
Programming languages
C
since Feb 2023
Retargeting
Google Remarketing Tag
since Jul 2021
Security
HSTS
since Mar 2025
Tag managers
Google Tag Manager
since Dec 2020
UI frameworks
Web servers
Nginx
since Dec 2020
Webmail
Google Workspace
since Oct 2023
Widgets
Wheelio
since Sep 2021
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 85% desktop
- 15% phone
Vietnam
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.80 / 10 · ranked #1,974,465 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 100 ms |
| CLS | 0.35 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Vietnamese
- Weight: 1.6 MB · 44 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| edu-gialai.k12online.vn | 10 |
| sgdbacninh.k12online.vn | 10 |
| bnh-thptlythaito.k12online.vn | 9 |
| bnh-thuanthanh-thcsdaidongthanh.k12online.vn | 9 |
| bnh-truongthptchuyenbacninh.k12online.vn | 9 |
| cantho.k12online.vn | 9 |
| edu-angiang.k12online.vn | 9 |
| edu-camau.k12online.vn | 9 |
| hotro.k12online.vn | 9 |
| agg-thcs-thptbinhlong.k12online.vn | 8 |
| bdg-tpthudaumot-thcsphuhoa.k12online.vn | 8 |
| bnh-tpbacninh-thcshoalong.k12online.vn | 8 |
| bnh-tpbacninh-thcstienan.k12online.vn | 8 |
| cdn-static3.k12online.vn | 8 |
| cuocthidemo.k12online.vn | 8 |
| dni-ptthuchanhsupham.k12online.vn | 8 |
| hcm-nhabe-thcsnguyenbinhkhiem.k12online.vn | 8 |
| hcm-th-thcs-thptngothoinhiem.k12online.vn | 8 |
| hcm-truongthptbinhkhanh.k12online.vn | 8 |
| hcm.k12online.vn | 8 |
| hotro-edu.k12online.vn | 8 |
| sgdninhthuan.k12online.vn | 8 |
| sgdphutho.k12online.vn | 8 |
| static.k12online.vn | 8 |