Arc vs cdnjs
Head-to-head usage across the sites we track.
Top sites by authority
Arc · cdnjs · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
142
Open Page Rank 8+
0
2,774
Open Page Rank 7+
0
12,330
Open Page Rank 6+
0
24,754
Open Page Rank 5+
0
44,610
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Arc · cdnjs · share of sites in each country using one or the other
United States
83
424,275
India
67
241,139
Japan
46
191,810
United Kingdom
46
157,683
Brazil
50
128,927
France
50
126,091
Canada
46
113,739
Germany
52
108,676
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Arc | cdnjs |
|---|---|---|
| LCP | 2.2 s | 1.9 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 1000 ms | 800 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Arc to cdnjs
| Domain | When |
|---|---|
| modagamers.com | Oct 2025 |