Vitals vs Zipify OCU
Head-to-head usage across the sites we track.
Top sites by authority
Vitals · Zipify OCU · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
1
Open Page Rank 8+
3
1
Open Page Rank 7+
6
1
Open Page Rank 6+
9
3
Open Page Rank 5+
29
3
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Vitals · Zipify OCU · share of sites in each country using one or the other
United States
3,566
386
United Kingdom
1,463
143
India
1,304
82
Canada
1,060
139
Australia
984
94
Germany
990
84
France
979
78
Spain
663
49
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Vitals | Zipify OCU |
|---|---|---|
| LCP | 1.6 s | 1.8 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 Zipify OCU
| Domain | When |
|---|---|
| tinysproutsfoods.com | Nov 2025 |
| nuvogue.co | Sep 2025 |
| epicvitals.com | Sep 2025 |
| vinci-eyewear.com | Sep 2025 |
| velenor-store.com | Jul 2025 |
Zipify OCU to Vitals
| Domain | When |
|---|---|
| edinco.co.uk | Feb 2026 |
| bracebliss.com | Feb 2026 |
| qivii.com | Feb 2026 |
| bluemoonelise.com | Feb 2026 |
| smalltowntitans.com | Feb 2026 |
| retrograppler.com | Feb 2026 |
| serinosports.com | Jan 2026 |
| cooknrun.com | Jan 2026 |
| pupganics.com | Jan 2026 |
| adora.co.uk | Jan 2026 |
| divertissementculinaire.com | Jan 2026 |
| theproframe.com | Dec 2025 |
| piratesandpearlsboutique.com | Dec 2025 |