FontServer vs Google Font API
Head-to-head usage across the sites we track.
Top sites by authority
FontServer · Google Font API · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
194
Open Page Rank 8+
0
4,170
Open Page Rank 7+
1
22,090
Open Page Rank 6+
1
49,367
Open Page Rank 5+
1
96,990
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
FontServer · Google Font API · share of sites in each country using one or the other
United States
34
1,502,923
India
4
616,138
Japan
4
483,655
United Kingdom
15
467,747
Brazil
2
443,460
France
8
437,883
Italy
7
373,040
Spain
3
351,619
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | FontServer | Google Font API |
|---|---|---|
| LCP | 3.1 s | 2 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 1600 ms | 900 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.