Iterable vs Klaviyo
Head-to-head usage across the sites we track.
Top sites by authority
Iterable · Klaviyo · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
21
Open Page Rank 8+
1
123
Open Page Rank 7+
3
475
Open Page Rank 6+
6
1,254
Open Page Rank 5+
11
3,065
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Iterable · Klaviyo · share of sites in each country using one or the other
United States
50
94,628
United Kingdom
37
37,132
Canada
38
29,501
Australia
34
27,110
Germany
31
23,957
France
24
20,942
India
32
19,705
Spain
24
16,472
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Iterable | Klaviyo |
|---|---|---|
| LCP | 2.1 s | 1.6 s |
| INP | 100 ms | 100 ms |
| CLS | 0.05 | 0 |
| TTFB | 700 ms | 500 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.