MailChimp vs Sailthru
Head-to-head usage across the sites we track.
Top sites by authority
MailChimp · Sailthru · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
55
12
Open Page Rank 8+
881
148
Open Page Rank 7+
3,928
339
Open Page Rank 6+
8,381
482
Open Page Rank 5+
16,023
681
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
MailChimp · Sailthru · share of sites in each country using one or the other
United States
161,030
1,599
United Kingdom
74,844
1,033
Canada
48,970
1,150
India
47,917
943
France
37,876
646
Australia
37,236
743
Italy
37,051
613
Germany
36,354
682
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | MailChimp | Sailthru |
|---|---|---|
| LCP | 2 s | 2 s |
| INP | 75 ms | 125 ms |
| CLS | 0 | 0.05 |
| TTFB | 900 ms | 700 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.
MailChimp to Sailthru
| Domain | When |
|---|---|
| visionpros.ca | Nov 2025 |