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+
56
13
Open Page Rank 8+
852
154
Open Page Rank 7+
3,776
347
Open Page Rank 6+
8,015
511
Open Page Rank 5+
15,311
723
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
140,200
1,504
United Kingdom
64,810
917
Canada
41,963
1,051
India
40,362
863
Italy
33,400
540
Australia
31,343
682
Netherlands
31,497
514
Spain
31,220
565
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | MailChimp | Sailthru |
|---|---|---|
| LCP | 1.9 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, 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.
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 |
|---|---|
| bostonherald.com | Aug 2026 |
| lowellsun.com | Aug 2026 |
| sentinelandenterprise.com | Aug 2026 |
| visionpros.ca | Nov 2025 |