Product Personalizer vs Vitals
Head-to-head usage across the sites we track.
Top sites by authority
Product Personalizer · Vitals · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Product Personalizer · Vitals · share of sites in each country using one or the other
United States
1,675
3,566
United Kingdom
613
1,463
India
464
1,304
Canada
455
1,060
Germany
512
990
Australia
425
984
France
398
979
Italy
254
647
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Product Personalizer | Vitals |
|---|---|---|
| LCP | 1.5 s | 1.6 s |
| INP | 100 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 500 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Vitals to Product Personalizer
| Domain | When |
|---|---|
| larosastyle.com | Apr 2026 |
| sipwise.store | Jan 2026 |
| divain.cl | Aug 2025 |