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+
20
1
Open Page Rank 8+
123
2
Open Page Rank 7+
473
5
Open Page Rank 6+
1,250
15
Open Page Rank 5+
3,055
29
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
94,562
246
United Kingdom
37,244
120
Canada
29,978
112
Australia
27,541
76
Germany
24,145
94
France
21,230
87
India
20,024
128
Spain
16,028
75
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, 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.