Site Kit vs user.com
Head-to-head usage across the sites we track.
Top sites by authority
Site Kit · user.com · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
36
0
Open Page Rank 8+
649
0
Open Page Rank 7+
2,698
0
Open Page Rank 6+
5,893
0
Open Page Rank 5+
12,351
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 · user.com · share of sites in each country using one or the other
United States
215,676
0
India
110,602
0
Japan
82,773
0
Brazil
80,295
0
France
74,632
0
United Kingdom
72,179
0
Spain
67,753
0
Italy
63,679
0
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Site Kit | user.com |
|---|---|---|
| LCP | 2.4 s | 1 s |
| INP | 75 ms | 250 ms |
| CLS | 0 | 0 |
| TTFB | 1300 ms | 400 ms |
Median site's p75 values from the Chrome UX Report, Jun 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.