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
14
Open Page Rank 7+
0
34
Open Page Rank 6+
0
50
Open Page Rank 5+
0
69
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
2,737
India
1
1,532
United Kingdom
1
1,378
Germany
0
1,246
Canada
1
1,160
France
0
1,097
Spain
0
998
Netherlands
0
953
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 | 175 ms | 75 ms |
| CLS | 0.25 | 0 |
| TTFB | 700 ms | 700 ms |
Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.