Kiwi Sizing vs Reflektion
Head-to-head usage across the sites we track.
Top sites by authority
Kiwi Sizing · Reflektion · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
3
0
Open Page Rank 8+
4
0
Open Page Rank 7+
12
3
Open Page Rank 6+
23
9
Open Page Rank 5+
40
16
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Kiwi Sizing · Reflektion · share of sites in each country using one or the other
United States
2,106
62
India
962
52
United Kingdom
952
45
Canada
787
58
Australia
688
35
Germany
620
37
France
590
31
Italy
490
31
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Kiwi Sizing | Reflektion |
|---|---|---|
| LCP | 1.7 s | 2.4 s |
| INP | 100 ms | 125 ms |
| CLS | 0 | 0.05 |
| TTFB | 500 ms | 900 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.