CNZZ vs Site Kit
Head-to-head usage across the sites we track.
Top sites by authority
CNZZ · Site Kit · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
4
39
Open Page Rank 8+
39
636
Open Page Rank 7+
105
2,691
Open Page Rank 6+
159
5,912
Open Page Rank 5+
220
12,410
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
CNZZ · Site Kit · share of sites in each country using one or the other
United States
1,285
194,442
India
606
96,669
Japan
914
73,684
Brazil
426
73,670
United Kingdom
361
63,934
France
281
62,421
Spain
231
58,678
Italy
248
55,218
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | CNZZ | Site Kit |
|---|---|---|
| LCP | 2.2 s | 2.4 s |
| INP | 50 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 1300 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.