Cart Functionality vs Fourthwall
Head-to-head usage across the sites we track.
Top sites by authority
Cart Functionality · Fourthwall · 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
Cart Functionality · Fourthwall · share of sites in each country using one or the other
United States
819,640
2,338
United Kingdom
265,245
1,190
India
226,526
1,144
Germany
217,355
1,129
France
207,855
1,019
Canada
188,032
1,019
Brazil
158,050
849
Italy
154,275
864
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Cart Functionality | Fourthwall |
|---|---|---|
| LCP | 1.7 s | 1.7 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 600 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.
Cart Functionality to Fourthwall
| Domain | When |
|---|---|
| justanoval.com | Mar 2026 |
| bozevstheworld.net | Mar 2026 |
Fourthwall to Cart Functionality
| Domain | When |
|---|---|
| cklive.live | May 2026 |
| fancasajardin.com.ar | Apr 2026 |
| cataquariums.com | Mar 2026 |
| samplefocus.com | Dec 2025 |
| poltekindonusa.ac.id | Aug 2025 |
| dermbio.co | Aug 2025 |
| pramgfree.net | Jul 2025 |