K2 vs Open Graph
Head-to-head usage across the sites we track.
Top sites by authority
K2 · Open Graph · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
277
Open Page Rank 8+
16
6,012
Open Page Rank 7+
41
33,153
Open Page Rank 6+
50
75,837
Open Page Rank 5+
87
151,511
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
K2 · Open Graph · share of sites in each country using one or the other
United States
373
2,082,596
India
138
726,293
Japan
64
698,120
Germany
396
697,460
United Kingdom
184
666,057
France
194
606,133
Brazil
115
559,555
Italy
395
476,056
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | K2 | Open Graph |
|---|---|---|
| LCP | 1.9 s | 1.9 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 800 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.