Back In Stock vs Booster Page Speed Optimizer
Head-to-head usage across the sites we track.
Top sites by authority
Back In Stock · Booster Page Speed Optimizer · 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
Back In Stock · Booster Page Speed Optimizer · share of sites in each country using one or the other
United States
1,474
2,898
India
684
1,454
United Kingdom
829
1,178
Canada
749
849
Indonesia
1,317
247
Germany
560
869
France
588
771
Australia
597
753
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Back In Stock | Booster Page Speed Optimizer |
|---|---|---|
| LCP | 1.9 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, 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Back In Stock to Booster Page Speed Optimizer
| Domain | When |
|---|---|
| d2eboutique.com | Feb 2026 |
Booster Page Speed Optimizer to Back In Stock
| Domain | When |
|---|---|
| greenchickchopindia.com | Feb 2026 |
All Back In Stock sites · All Booster Page Speed Optimizer sites