1
At a glance the headline numbers for Personalization impact
Performance impact by personalization provider.
4
Providers ranked
After min-sites filter
15,493
Sites in sample
Combined across all items
113ms
Best INP (p75)
Elfsight
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by INP at p75, fastest first
| # | Provider | INP p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Elfsight | 113ms | 96.2% | 2,298 | |
| 2 | Algolia Recommend | 114ms | 95.3% | 13,079 | |
| 3 | Nosto | 170ms | 90.0% | 51 | |
| 4 | Dynamic Yield | 295ms | 47.2% | 65 |
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
3
Passing INP per provider which group passes the INP most often
ProviderSitesPassing INPp75
Elfsight 1.2% 2,298 113ms
Klevu 0% 26 153ms
Algolia Recommend 6.9% 13,079 114ms
Nosto 0% 51 170ms
Dynamic Yield 0% 65 295ms
Barilliance 0% 1 346ms
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good INP (200ms at p75) · one value per site
No provider stands out: pass rates sit between 95% and 96%. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
4
All five vitals at once the whole category without toggling - cell is the pass rate, small number the p75
LCP
INP
CLS
FCP
TTFB
Dynamic Yield 0%
702.6s
47295ms
630.19
751.8s
61967ms
Barilliance 0%
100929ms
0346ms
1000.00
100815ms
100370ms
Algolia Recommend 6.9%
842.1s
95114ms
860.04
781.7s
621.1s
Elfsight 1.2%
822.2s
96113ms
860.05
771.8s
591.2s
Nosto 0%
732.5s
90170ms
750.11
731.9s
521.5s
Klevu 0%
732.5s
96153ms
540.21
811.7s
62962ms
60%95%+ passing Cell: pass rate, small number = p75 · faded rows: under 100 sites
One row per provider, one column per vital - the cell is the share of sites passing, the small number the p75. No toggling needed to see where the category actually differs.
Elfsight leads on INP: 96% of its sites pass. Algolia Recommend trails at 95%. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
Related signals JS libraries (25) → Tag managers (8) → A/B testing (12) → Chat & messaging (17) → Chrome field data from 189,915 sites, representing millions of real page loads · How we measured
Chrome field data from 189,915 sites, representing millions of real page loads. How we measured.