Booster Page Speed Optimizer vs Reserve In-Store
Head-to-head usage across the sites we track.
Top sites by authority
Booster Page Speed Optimizer · Reserve In-Store · 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
Booster Page Speed Optimizer · Reserve In-Store · share of sites in each country using one or the other
United States
2,898
14
India
1,454
7
United Kingdom
1,178
14
Germany
869
10
Canada
849
9
France
771
12
Australia
753
6
Italy
702
5
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Booster Page Speed Optimizer | Reserve In-Store |
|---|---|---|
| LCP | 1.8 s | 1.5 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 500 ms | 400 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.
All Booster Page Speed Optimizer sites · All Reserve In-Store sites