1
At a glance the headline numbers for Personalization impact
Performance impact by personalization provider.
4
Providers ranked
After min-sites filter
15,479
Sites in sample
Combined across all items
2.1s
Best LCP (p75)
Algolia Recommend
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by LCP at p75, fastest first
| # | Provider | LCP p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Algolia Recommend | 2.1s | 83.7% | 13,065 | |
| 2 | Elfsight | 2.2s | 81.5% | 2,298 | |
| 3 | Nosto | 2.5s | 72.5% | 51 | |
| 4 | Dynamic Yield | 2.6s | 69.8% | 65 |
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
3
Passing LCP per provider which group passes the LCP most often
ProviderSitesPassing LCPp75
Algolia Recommend 6.9%
13,065
2.1s
Elfsight 1.2%
2,298
2.2s
Klevu 0%
26
2.5s
Nosto 0%
51
2.5s
Dynamic Yield 0%
65
2.6s
Good
Needs Improvement
Poor
Sorted best-passing first · median colored by its own rating · pass = good LCP (2.5s at p75) · one value per site
No provider stands out: pass rates sit between 82% and 84%. 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
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
Dynamic Yield 0%
702.6s
47295ms
640.19
751.8s
61967ms
Nosto 0%
732.5s
90169ms
750.11
731.8s
521.4s
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.
Algolia Recommend leads on LCP: 84% of its sites pass. Elfsight trails at 82%. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
Related signals
JS libraries (23) →
Tag managers (8) →
A/B testing (10) →
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.