Customily vs Kiwi Sizing
Head-to-head usage across the sites we track.
Top sites by authority
Customily · Kiwi Sizing · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
2
3
Open Page Rank 8+
9
4
Open Page Rank 7+
17
12
Open Page Rank 6+
23
23
Open Page Rank 5+
33
40
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Customily · Kiwi Sizing · share of sites in each country using one or the other
United States
448
2,106
United Kingdom
174
952
India
97
962
Canada
139
787
Australia
108
688
Germany
101
620
France
94
590
Italy
72
490
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Customily | Kiwi Sizing |
|---|---|---|
| LCP | 1.5 s | 1.7 s |
| INP | 100 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 500 ms | 500 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.