K2 vs Webpack
Head-to-head usage across the sites we track.
Top sites by authority
K2 · Webpack · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
195
Open Page Rank 8+
14
3,336
Open Page Rank 7+
32
13,535
Open Page Rank 6+
41
25,473
Open Page Rank 5+
72
42,688
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
K2 · Webpack · share of sites in each country using one or the other
United States
311
280,614
India
120
151,337
Germany
318
119,668
United Kingdom
160
113,937
France
155
97,546
Brazil
100
97,414
Canada
82
87,677
Spain
242
71,269
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | K2 | Webpack |
|---|---|---|
| LCP | 1.9 s | 2 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 700 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.