AB Tasty vs Google Optimize
Head-to-head usage across the sites we track.
Top sites by authority
AB Tasty · Google Optimize · 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
AB Tasty · Google Optimize · share of sites in each country using one or the other
United States
1,851
19,616
India
1,215
11,660
United Kingdom
1,657
10,689
Canada
1,357
9,812
Germany
1,401
8,571
France
1,735
7,579
Spain
1,407
7,482
Brazil
763
7,844
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | AB Tasty | Google Optimize |
|---|---|---|
| LCP | 2 s | 2 s |
| INP | 125 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 800 ms |
Median site's p75 values from the Chrome UX Report, Sep 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.
Google Optimize to AB Tasty
| Domain | When |
|---|---|
| l214.com | Jan 2026 |
| verisure.co.uk | Dec 2025 |
| les2marmottes.com | Nov 2025 |