Klaviyo vs SendPulse
Head-to-head usage across the sites we track.
Top sites by authority
Klaviyo · SendPulse · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
20
2
Open Page Rank 8+
123
12
Open Page Rank 7+
473
25
Open Page Rank 6+
1,250
41
Open Page Rank 5+
3,055
71
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Klaviyo · SendPulse · share of sites in each country using one or the other
United States
94,562
239
United Kingdom
37,244
149
Canada
29,978
91
Australia
27,541
44
Germany
24,145
282
France
21,230
125
India
20,024
140
Spain
16,028
132
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Klaviyo | SendPulse |
|---|---|---|
| LCP | 1.6 s | 2 s |
| INP | 100 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 500 ms | 1000 ms |
Median site's p75 values from the Chrome UX Report, Aug 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.