Klaviyo vs SEMrush
Head-to-head usage across the sites we track.
Top sites by authority
Klaviyo · SEMrush · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
21
0
Open Page Rank 8+
123
5
Open Page Rank 7+
475
5
Open Page Rank 6+
1,254
7
Open Page Rank 5+
3,065
8
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Klaviyo · SEMrush · share of sites in each country using one or the other
United States
94,628
9
United Kingdom
37,132
6
Canada
29,501
6
Australia
27,110
6
Germany
23,957
6
France
20,942
6
India
19,705
8
Spain
16,472
7
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Klaviyo | SEMrush |
|---|---|---|
| LCP | 1.6 s | 2 s |
| INP | 100 ms | 87 ms |
| CLS | 0 | 0 |
| TTFB | 500 ms | 1150 ms |
Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.