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+
14
5,990
Open Page Rank 7+
31
33,014
Open Page Rank 6+
41
75,386
Open Page Rank 5+
73
150,014
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
311
1,859,885
India
120
666,509
Germany
318
624,387
Japan
55
610,428
United Kingdom
160
596,006
Brazil
100
543,832
France
155
527,705
Italy
331
436,871
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, 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
K2 to Open Graph
| Domain | When |
|---|---|
| fesporte.sc.gov.br | Aug 2026 |
| fairclothreynolds.com.au | Jul 2026 |
| weidelsburg.de | May 2026 |
Open Graph to K2
| Domain | When |
|---|---|
| fesporte.sc.gov.br | Aug 2026 |