Grin vs MailChimp
Head-to-head usage across the sites we track.
Top sites by authority
Grin · MailChimp · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
56
Open Page Rank 8+
3
852
Open Page Rank 7+
14
3,776
Open Page Rank 6+
39
8,015
Open Page Rank 5+
88
15,311
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Grin · MailChimp · share of sites in each country using one or the other
United States
824
140,200
United Kingdom
469
64,810
Canada
552
41,963
India
457
40,362
Italy
222
33,400
Netherlands
218
31,497
Australia
369
31,343
Spain
227
31,220
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Grin | MailChimp |
|---|---|---|
| LCP | 1.9 s | 1.9 s |
| INP | 125 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 500 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Grin to MailChimp
| Domain | When |
|---|---|
| verbenergy.com | Dec 2025 |
| flowhydration.ca | Oct 2025 |
| flowhydration.com | Oct 2025 |