FormAssembly vs Klaviyo Forms
Head-to-head usage across the sites we track.
Top sites by authority
FormAssembly · Klaviyo Forms · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
4
8
Open Page Rank 8+
34
39
Open Page Rank 7+
78
113
Open Page Rank 6+
119
324
Open Page Rank 5+
173
816
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
FormAssembly · Klaviyo Forms · share of sites in each country using one or the other
United States
562
15,204
United Kingdom
209
7,131
Canada
206
6,145
Germany
127
5,242
Australia
207
5,051
India
238
4,157
France
117
4,010
Italy
107
2,987
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | FormAssembly | Klaviyo Forms |
|---|---|---|
| LCP | 2.1 s | 1.7 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 1000 ms | 500 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.