What powers kelas.center?
Last seen Jun 2026 · 27 technologies across 12 categories
Analytics
Cloudflare Browser Insights
since Dec 2022
Google Analytics
since Mar 2023
CDN
cdnjs
since Dec 2022
Cloudflare
since Dec 2022
Google Hosted Libraries
since Dec 2022
jQuery CDN
since Dec 2022
jsDelivr
since Dec 2022
Unpkg
since Dec 2022
Font scripts
Font Awesome
since Dec 2022
Google Font API
since Dec 2022
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Marked
since Dec 2022
OWL Carousel
since Dec 2022
Live chat
WhatsApp Business Chat
since Dec 2022
Miscellaneous
Programming languages
Security
reCAPTCHA
since Oct 2025
Tag managers
Google Tag Manager
since Mar 2023
UI frameworks
Audience
- 63% phone
- 37% desktop
Indonesia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.69 / 10 · ranked #19,719,569 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.6 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Indonesian
- CDN: Cloudflare
- Weight: 6.6 MB · 225 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped core-js Feb 2026
- dropped Facebook Pixel Feb 2026
- detected reCAPTCHA Oct 2025