Cloudflare Rocket Loader vs SpeedKit
Head-to-head usage across the sites we track.
Detections for SpeedKit end in Aug 2022. The fingerprint catalog behind our crawls no longer carries that technology as its own entry, usually because it was retired or split into more specific ones, so its figure is the last recorded and is not directly comparable with a currently tracked technology.
Top sites by authority
Cloudflare Rocket Loader · SpeedKit · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Cloudflare Rocket Loader · SpeedKit · share of sites in each country using one or the other
United States
29,959
14
India
19,958
12
Saudi Arabia
15,432
3
United Kingdom
14,634
11
Brazil
13,122
8
Germany
11,955
19
Canada
11,512
8
Indonesia
11,371
7
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Cloudflare Rocket Loader | SpeedKit |
|---|---|---|
| LCP | 2.1 s | 2.5 s |
| INP | 100 ms | 125 ms |
| CLS | 0 | 0.05 |
| TTFB | 1000 ms | 900 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.