Booster Page Speed Optimizer vs Zipify OCU
Head-to-head usage across the sites we track.
Top sites by authority
Booster Page Speed Optimizer · Zipify OCU · 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 · Zipify OCU · share of sites in each country using one or the other
United States
2,475
311
India
1,230
67
United Kingdom
1,012
111
Canada
750
114
Germany
736
70
Australia
631
88
France
628
61
Italy
606
46
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Booster Page Speed Optimizer | Zipify OCU |
|---|---|---|
| LCP | 1.7 s | 1.8 s |
| INP | 100 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 500 ms | 500 ms |
Median site's p75 values from the Chrome UX Report, Aug 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.
Zipify OCU to Booster Page Speed Optimizer
| Domain | When |
|---|---|
| mamiecadeau.com | Feb 2026 |
| kankan.london | Nov 2025 |
All Booster Page Speed Optimizer sites · All Zipify OCU sites