Open-Xchange App Suite vs Proton Mail
Head-to-head usage across the sites we track.
Top sites by authority
Open-Xchange App Suite · Proton Mail · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
7
Open Page Rank 8+
3
47
Open Page Rank 7+
3
198
Open Page Rank 6+
5
418
Open Page Rank 5+
8
737
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Open-Xchange App Suite · Proton Mail · share of sites in each country using one or the other
United States
27
6,185
United Kingdom
18
2,300
France
17
2,126
India
17
2,067
Germany
34
2,033
Canada
17
1,910
Netherlands
16
1,566
Spain
20
1,381
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Open-Xchange App Suite | Proton Mail |
|---|---|---|
| LCP | 1.7 s | 1.7 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 550 ms | 700 ms |
Median site's p75 values from the Chrome UX Report, Jun 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.