CrossBox vs Outlook Web App
Head-to-head usage across the sites we track.
Top sites by authority
CrossBox · Outlook Web App · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 8+
0
13
Open Page Rank 7+
0
32
Open Page Rank 6+
0
49
Open Page Rank 5+
0
67
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
CrossBox · Outlook Web App · share of sites in each country using one or the other
United States
3
2,704
India
1
1,547
United Kingdom
1
1,345
Germany
1
1,268
Canada
1
1,153
France
0
1,078
Spain
0
973
Netherlands
1
923
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | CrossBox | Outlook Web App |
|---|---|---|
| LCP | 3.8 s | 1.7 s |
| INP | 150 ms | 75 ms |
| CLS | 0.1 | 0 |
| TTFB | 800 ms | 700 ms |
Median site's p75 values from the Chrome UX Report, Aug 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.