1
At a glance the headline numbers for Personalization impact
Performance impact by personalization provider.
2
Providers ranked
After min-sites filter
8,167
Sites in sample
Combined across all items
113ms
Best INP (p75)
Elfsight
The State of Web Vitals · Q1 2026 · 94,910 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 | 96.6% | 1,231 | |
| 2 | Algolia Recommend | 114ms | 95.2% | 6,936 |
The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
3
Passing INP per provider which group passes the INP most often
ProviderSitesPassing INPp75
Klevu 0% 17 155ms
Elfsight 1.3% 1,231 113ms
Algolia Recommend 7.3% 6,936 114ms
Nosto 0% 30 170ms
Dynamic Yield 0% 37 297ms
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 97%. computed
The State of Web Vitals · Q1 2026 · 94,910 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 7.3%
842.1s
95114ms
870.04
781.7s
621.1s
Elfsight 1.3%
822.2s
97113ms
850.05
781.7s
601.2s
Dynamic Yield 0%
662.9s
57297ms
630.18
662.1s
541.2s
Nosto 0%
802.3s
90170ms
770.10
801.5s
571.1s
Klevu 0%
772.5s
100155ms
590.21
771.6s
59962ms
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: 97% of its sites pass. Algolia Recommend trails at 95%. computed
The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
Related signals JS libraries (22) → Tag managers (8) → A/B testing (10) → Chat & messaging (16) → Chrome field data from 94,910 sites, representing millions of real page loads · How we measured
Chrome field data from 94,910 sites, representing millions of real page loads. How we measured.