CartKit vs MailChimp
Head-to-head usage across the sites we track.
Top sites by authority
CartKit · MailChimp · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
59
Open Page Rank 8+
0
871
Open Page Rank 7+
0
3,844
Open Page Rank 6+
0
8,214
Open Page Rank 5+
0
15,705
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
CartKit · MailChimp · share of sites in each country using one or the other
United States
64
142,004
United Kingdom
33
65,019
Canada
20
42,102
India
17
41,567
Australia
16
32,722
Germany
19
31,989
Italy
15
31,919
France
18
31,178
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | CartKit | MailChimp |
|---|---|---|
| LCP | 1.6 s | 2 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 500 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.