Arc vs Google Hosted Libraries
Head-to-head usage across the sites we track.
Top sites by authority
Arc · Google Hosted Libraries · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
98
Open Page Rank 8+
0
1,847
Open Page Rank 7+
0
7,667
Open Page Rank 6+
0
15,099
Open Page Rank 5+
0
27,116
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Arc · Google Hosted Libraries · share of sites in each country using one or the other
United States
67
280,294
Japan
41
224,601
India
61
104,588
United Kingdom
45
98,930
Canada
38
71,082
France
43
68,026
Brazil
48
62,935
Germany
43
62,234
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Arc | Google Hosted Libraries |
|---|---|---|
| LCP | 1.8 s | 1.7 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 700 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.