Leanplum vs MailChimp
Head-to-head usage across the sites we track.
Top sites by authority
Leanplum · MailChimp · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
58
Open Page Rank 8+
0
863
Open Page Rank 7+
0
3,810
Open Page Rank 6+
3
8,097
Open Page Rank 5+
3
15,491
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Leanplum · MailChimp · share of sites in each country using one or the other
United States
43
140,200
United Kingdom
16
64,810
Canada
12
41,963
India
18
40,362
Italy
10
33,400
Netherlands
8
31,497
Australia
6
31,343
Spain
9
31,220
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Leanplum | MailChimp |
|---|---|---|
| LCP | 2.7 s | 1.9 s |
| INP | 125 ms | 75 ms |
| CLS | 0.05 | 0 |
| TTFB | 1000 ms | 900 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.