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
103
Open Page Rank 8+
0
1,916
Open Page Rank 7+
0
7,973
Open Page Rank 6+
0
15,713
Open Page Rank 5+
0
28,282
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
68
287,105
Japan
41
228,419
India
62
107,539
United Kingdom
46
98,380
Canada
42
72,013
France
44
68,288
Brazil
48
64,908
Germany
41
64,646
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Arc | Google Hosted Libraries |
|---|---|---|
| LCP | 2.1 s | 1.7 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 1000 ms | 700 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.