What powers spero.academy?
Last seen Jun 2026 · 14 technologies across 8 categories
Analytics
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Security
HSTS
since Mar 2024
UI frameworks
Web servers
Nginx
since Jan 2019
Webmail
Apple iCloud Mail
since Jan 2023
Google Workspace
since Aug 2022
Audience
- 65% phone
- 35% desktop
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.78 / 10 · ranked #2,023,454 of all domains
23 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 4.5 MB · 59 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.