1
At a glance the headline numbers for Performance services impact
Performance impact by performance provider.
8
Providers ranked
After min-sites filter
9,366
Sites in sample
Combined across all items
0.03
Best CLS (p75)
LiteSpeed Cache
The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | LiteSpeed Cache | 0.03 | 88.3% | 2,385 | |
| 2 | Cloudflare APO | 0.04 | 87.7% | 846 | |
| 3 | WP Fastest Cache | 0.04 | 87.3% | 1,164 | |
| 4 | Autoptimize | 0.04 | 88.8% | 1,926 | |
| 5 | WP Rocket | 0.04 | 87.9% | 2,684 | |
| 6 | FlyingPress | 0.04 | 87.0% | 108 | |
| 7 | NitroPack | 0.05 | 86.0% | 96 | |
| 8 | W3 Total Cache | 0.06 | 85.5% | 157 |
The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Autoptimize 2% 1,926 0.04
LiteSpeed Cache 2.5% 2,385 0.03
WP Rocket 2.8% 2,684 0.04
Cloudflare APO 0.9% 846 0.04
WP Fastest Cache 1.2% 1,164 0.04
FlyingPress 0.1% 108 0.04
NitroPack 0.1% 96 0.05
W3 Total Cache 0.2% 157 0.06
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good CLS (0.1 at p75) · one value per site
No provider stands out: pass rates sit between 86% and 89%. 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
WP Rocket 2.8%
792.3s
97113ms
880.04
721.9s
461.6s
LiteSpeed Cache 2.5%
842.2s
98101ms
880.03
771.7s
531.3s
Autoptimize 2%
682.8s
99112ms
890.04
582.4s
281.9s
WP Fastest Cache 1.2%
702.7s
99104ms
870.04
622.3s
411.8s
Cloudflare APO 0.9%
722.6s
96110ms
880.04
622.2s
351.8s
W3 Total Cache 0.2%
742.5s
96107ms
860.06
642.2s
341.6s
FlyingPress 0.1%
852.2s
100112ms
870.04
761.7s
551.1s
NitroPack 0.1%
842.1s
99112ms
860.05
761.8s
401.4s
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.
Autoptimize leads on CLS: 89% of its sites pass. W3 Total Cache trails at 86%. computed
The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
Related signals Analytics (20) → Reviews (8) → Maps (4) → Consent platforms (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.