Cloudflare Rocket Loader vs Speedimize
Head-to-head usage across the sites we track.
Top sites by authority
Cloudflare Rocket Loader · Speedimize · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
15
0
Open Page Rank 8+
222
0
Open Page Rank 7+
969
0
Open Page Rank 6+
2,036
0
Open Page Rank 5+
3,773
0
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 · Speedimize · share of sites in each country using one or the other
United States
35,506
9
India
23,560
8
United Kingdom
17,454
9
Saudi Arabia
17,113
3
Brazil
15,129
4
Germany
14,506
3
France
14,025
5
Indonesia
14,015
2
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Cloudflare Rocket Loader | Speedimize |
|---|---|---|
| LCP | 2.2 s | 1.7 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 1000 ms | 550 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.