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 9+
1
0
Open Page Rank 8+
1
0
Open Page Rank 7+
2
0
Open Page Rank 6+
4
1
Open Page Rank 5+
5
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
34
185
Canada
34
76
India
32
74
United Kingdom
27
76
France
25
63
Germany
22
66
Italy
25
62
Mexico
33
44
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Borderfree | Flow |
|---|---|---|
| LCP | 2.1 s | 2 s |
| INP | 150 ms | 75 ms |
| CLS | 0.05 | 0 |
| TTFB | 900 ms | 800 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.