Aweber vs Klaviyo
Head-to-head usage across the sites we track.
Top sites by authority
Aweber · Klaviyo · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
3
20
Open Page Rank 8+
14
117
Open Page Rank 7+
27
471
Open Page Rank 6+
58
1,263
Open Page Rank 5+
106
3,084
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Aweber · Klaviyo · share of sites in each country using one or the other
United States
1,579
94,981
United Kingdom
449
37,521
Canada
416
29,443
Australia
233
27,360
Germany
150
24,684
France
184
21,379
India
346
19,044
Spain
117
16,856
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Aweber | Klaviyo |
|---|---|---|
| LCP | 2.1 s | 1.5 s |
| INP | 50 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 1100 ms | 500 ms |
Median site's p75 values from the Chrome UX Report, Oct 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.