Flow vs With Reach
Head-to-head usage across the sites we track.
Top sites by authority
Flow · With Reach · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 6+
1
1
Open Page Rank 5+
1
2
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Flow · With Reach · share of sites in each country using one or the other
United States
152
22
United Kingdom
74
19
Canada
70
17
India
62
17
Germany
61
13
Italy
51
11
Netherlands
51
11
France
50
11
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Flow | With Reach |
|---|---|---|
| LCP | 1.9 s | 1.8 s |
| INP | 75 ms | 125 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 500 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.