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+
17
2
Open Page Rank 8+
117
13
Open Page Rank 7+
456
26
Open Page Rank 6+
1,239
43
Open Page Rank 5+
3,036
76
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
103,547
324
United Kingdom
40,783
163
Canada
33,265
108
Australia
30,331
46
Germany
26,133
368
France
23,908
161
India
22,437
147
Spain
16,738
148
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 | 900 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.