Justuno vs Kiwi Sizing
Head-to-head usage across the sites we track.
Top sites by authority
Justuno · Kiwi Sizing · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
3
Open Page Rank 8+
3
4
Open Page Rank 7+
4
12
Open Page Rank 6+
13
23
Open Page Rank 5+
23
40
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Justuno · Kiwi Sizing · share of sites in each country using one or the other
United States
1,409
2,106
United Kingdom
469
952
India
380
962
Canada
494
787
Australia
365
688
Germany
217
620
France
217
590
Italy
154
490
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Justuno | Kiwi Sizing |
|---|---|---|
| LCP | 1.7 s | 1.7 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 600 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.