What powers harmonicalessons.com?
Last seen Jun 2026 · 6 technologies across 6 categories
CDN
jsDelivr
since Jul 2020
JavaScript libraries
Operating systems
Ubuntu
since Aug 2018
Payment processors
authorize.net
since Oct 2023
Video players
YouTube
since Aug 2018
Web servers
Audience
- 67% phone
- 33% desktop
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.31 / 10 · ranked #2,858,033 of all domains
28 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 4.5 MB · 80 requests
Homepage as crawled by the HTTP Archive, Jul 2026.