Borderfree vs Flow
Head-to-head usage across the sites we track.
Top sites by authority
Borderfree · Flow · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 6+
0
1
Open Page Rank 5+
1
1
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Borderfree · Flow · share of sites in each country using one or the other
United States
30
152
United Kingdom
24
74
Canada
27
70
India
26
62
Germany
18
61
Italy
21
51
France
21
50
Spain
20
47
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Borderfree | Flow |
|---|---|---|
| LCP | 1.9 s | 1.9 s |
| INP | 150 ms | 75 ms |
| CLS | 0.05 | 0 |
| TTFB | 800 ms | 900 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.