OneAPM vs Site Kit
Head-to-head usage across the sites we track.
Top sites by authority
OneAPM · Site Kit · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
40
Open Page Rank 8+
0
645
Open Page Rank 7+
1
2,680
Open Page Rank 6+
1
5,867
Open Page Rank 5+
2
12,357
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
OneAPM · Site Kit · share of sites in each country using one or the other
United States
11
191,744
India
3
94,995
Japan
6
73,790
Brazil
3
71,181
United Kingdom
5
64,452
France
4
63,629
Spain
2
63,132
Italy
4
58,351
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | OneAPM | Site Kit |
|---|---|---|
| LCP | 1.7 s | 2.4 s |
| INP | 50 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 1300 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.