Act-On vs Klaviyo
Head-to-head usage across the sites we track.
Top sites by authority
Act-On · Klaviyo · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
17
Open Page Rank 8+
10
117
Open Page Rank 7+
50
456
Open Page Rank 6+
118
1,239
Open Page Rank 5+
213
3,036
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Act-On · Klaviyo · share of sites in each country using one or the other
United States
1,395
103,547
United Kingdom
369
40,783
Canada
444
33,265
Australia
188
30,331
Germany
184
26,133
France
182
23,908
India
483
22,437
Spain
158
16,738
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Act-On | Klaviyo |
|---|---|---|
| LCP | 2 s | 1.6 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 900 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.