What powers class.ms?
Last seen Jun 2026 · 12 technologies across 9 categories
CDN
Font scripts
Google Font API
since Mar 2023
JavaScript libraries
Payment processors
Programming languages
TypeScript
since Apr 2024
Rich text editors
Quill
since Feb 2024
UI frameworks
Tailwind CSS
since Mar 2023
Webmail
Microsoft 365
since Jan 2026
Widgets
Audience
Ireland
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.44 / 10 · ranked #30,271,557 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 6.2 s |
| INP | 200 ms |
| CLS | 0.1 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 5.3 MB · 32 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Microsoft 365 Jan 2026