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
1,503
3,310
United Kingdom
532
1,382
India
386
1,273
Germany
449
992
Canada
405
993
Australia
367
956
France
350
905
Italy
236
674
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, 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.
Product Personalizer to Vitals
| Domain | When |
|---|---|
| trendtonic.co.uk | Jun 2026 |
Vitals to Product Personalizer
| Domain | When |
|---|---|
| larosastyle.com | Apr 2026 |
| sipwise.store | Jan 2026 |