Site Kit vs WebMetric
Head-to-head usage across the sites we track.
Top sites by authority
Site Kit · WebMetric · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
39
0
Open Page Rank 8+
636
0
Open Page Rank 7+
2,691
0
Open Page Rank 6+
5,912
0
Open Page Rank 5+
12,410
0
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Site Kit · WebMetric · share of sites in each country using one or the other
United States
194,442
9
India
96,669
1
Japan
73,684
1
Brazil
73,670
1
United Kingdom
63,934
4
France
62,421
2
Spain
58,678
0
Italy
55,218
1
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Site Kit | WebMetric |
|---|---|---|
| LCP | 2.4 s | 3.9 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 1300 ms | 1800 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.