Booster Page Speed Optimizer vs Fontify
Head-to-head usage across the sites we track.
Top sites by authority
Booster Page Speed Optimizer · Fontify · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
2
0
Open Page Rank 8+
6
0
Open Page Rank 7+
9
0
Open Page Rank 6+
19
0
Open Page Rank 5+
32
0
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 · Fontify · share of sites in each country using one or the other
United States
2,408
76
India
1,176
26
United Kingdom
1,021
43
Germany
736
28
Canada
718
28
Australia
621
25
Italy
614
24
France
608
26
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Booster Page Speed Optimizer | Fontify |
|---|---|---|
| LCP | 1.7 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, 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.