Google Font API vs i30con
Head-to-head usage across the sites we track.
Top sites by authority
Google Font API · i30con · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
191
0
Open Page Rank 8+
4,159
0
Open Page Rank 7+
21,919
0
Open Page Rank 6+
48,899
0
Open Page Rank 5+
95,932
0
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Google Font API · i30con · share of sites in each country using one or the other
United States
1,316,642
1
India
553,211
1
Brazil
440,793
1
Japan
425,221
1
United Kingdom
406,311
1
France
369,694
1
Italy
324,473
1
Spain
306,909
1
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Google Font API | i30con |
|---|---|---|
| LCP | 2 s | 5.6 s |
| INP | 75 ms | 150 ms |
| CLS | 0 | 0.3 |
| TTFB | 900 ms | 3300 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.