Fomo vs Klaviyo
Head-to-head usage across the sites we track.
Top sites by authority
Fomo · Klaviyo · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
20
Open Page Rank 8+
5
123
Open Page Rank 7+
13
473
Open Page Rank 6+
25
1,250
Open Page Rank 5+
51
3,055
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Fomo · Klaviyo · share of sites in each country using one or the other
United States
1,062
94,562
United Kingdom
371
37,244
Canada
353
29,978
Australia
328
27,541
Germany
182
24,145
France
182
21,230
India
405
20,024
Spain
148
16,028
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Fomo | Klaviyo |
|---|---|---|
| LCP | 1.8 s | 1.6 s |
| INP | 100 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 500 ms |
Median site's p75 values from the Chrome UX Report, Aug 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Fomo to Klaviyo
| Domain | When |
|---|---|
| alifeet.com | Aug 2026 |
| urbanempirecollectables.com | Jun 2026 |
| thebiodermix.com | May 2026 |
| hvshome.com | May 2026 |
| petercox.ie | May 2026 |
| silkoilofmorocco.com.au | May 2026 |
| headphonezone.in | Apr 2026 |
| montesere.com | Apr 2026 |
| soulelhealth.com | Mar 2026 |
| elevia.ro | Feb 2026 |
| noorkids.com | Jan 2026 |
| ashaircare.com.au | Jan 2026 |
| wyrdstory.com | Dec 2025 |
| rockportcandlecompany.com | Sep 2025 |
Klaviyo to Fomo
| Domain | When |
|---|---|
| exwora.com | Mar 2026 |
| tcgval.com | Mar 2026 |
| cheatcodeathletix.com | Nov 2025 |