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
191
Open Page Rank 8+
0
4,159
Open Page Rank 7+
1
21,919
Open Page Rank 6+
1
48,899
Open Page Rank 5+
1
95,932
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
29
1,316,642
India
6
553,211
Brazil
2
440,793
Japan
1
425,221
United Kingdom
11
406,311
France
6
369,694
Italy
1
324,473
Spain
3
306,909
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 | 1700 ms | 900 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.