1
At a glance the headline numbers for Personalization impact
Performance impact by personalization provider.
4
Providers ranked
After min-sites filter
17,350
Sites in sample
Combined across all items
112ms
Best INP (p75)
Elfsight
The State of Web Vitals · October 2026 · 212,308 crawled 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 | 112ms | 96.0% | 2,565 | |
| 2 | Algolia Recommend | 115ms | 95.2% | 14,660 | |
| 3 | Nosto | 166ms | 90.7% | 56 | |
| 4 | Dynamic Yield | 287ms | 49.1% | 69 |
The State of Web Vitals · October 2026 · 212,308 crawled 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% 2,565 112ms
Klevu 0% 26 153ms
Algolia Recommend 6.9% 14,660 115ms
Nosto 0% 56 166ms
Dynamic Yield 0% 69 287ms
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 · October 2026 · 212,308 crawled 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
Algolia Recommend 6.9%
842.1s
95115ms
860.04
781.7s
621.1s
Elfsight 1.2%
822.2s
96112ms
860.05
771.7s
601.2s
Dynamic Yield 0%
722.6s
49287ms
660.18
751.8s
62963ms
Nosto 0%
752.5s
91166ms
750.10
751.7s
561.2s
Klevu 0%
732.5s
96153ms
540.21
811.7s
62938ms
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 · October 2026 · 212,308 crawled sites · all devices field datacorewebvitals.io/state-of-cwv
Related signals JS libraries (26) → Tag managers (8) → A/B testing (12) → Chat & messaging (17) → 212,308 crawled sites with Chrome field data, representing millions of real page loads · How we measured
212,308 crawled sites with Chrome field data, representing millions of real page loads. How we measured.