Klaviyo vs VWO Engage
Head-to-head usage across the sites we track.
Top sites by authority
Klaviyo · VWO Engage · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
17
1
Open Page Rank 8+
117
2
Open Page Rank 7+
456
6
Open Page Rank 6+
1,239
17
Open Page Rank 5+
3,036
31
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Klaviyo · VWO Engage · share of sites in each country using one or the other
United States
103,547
286
United Kingdom
40,783
137
Canada
33,265
131
Australia
30,331
84
Germany
26,133
115
France
23,908
107
India
22,437
155
Spain
16,738
86
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Klaviyo | VWO Engage |
|---|---|---|
| LCP | 1.6 s | 2.3 s |
| INP | 100 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 500 ms | 1000 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.