BySide vs Klaviyo
Head-to-head usage across the sites we track.
Top sites by authority
BySide · Klaviyo · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
17
Open Page Rank 8+
1
117
Open Page Rank 7+
6
456
Open Page Rank 6+
12
1,239
Open Page Rank 5+
17
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
BySide · Klaviyo · share of sites in each country using one or the other
United States
29
103,547
United Kingdom
37
40,783
Canada
18
33,265
Australia
11
30,331
Germany
36
26,133
France
38
23,908
India
23
22,437
Spain
57
16,738
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | BySide | Klaviyo |
|---|---|---|
| LCP | 2.6 s | 1.6 s |
| INP | 150 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 700 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.