1
At a glance the headline numbers for Performance services impact
Performance impact by performance provider.
8
Providers ranked
After min-sites filter
17,402
Sites in sample
Combined across all items
0.08
Best CLS (p75)
W3 Total Cache
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | W3 Total Cache | 0.08 | 79.0% | 316 | |
| 2 | FlyingPress | 0.08 | 79.7% | 200 | |
| 3 | NitroPack | 0.09 | 82.7% | 189 | |
| 4 | WP Fastest Cache | 0.09 | 77.4% | 2,247 | |
| 5 | Autoptimize | 0.09 | 77.4% | 3,758 | |
| 6 | Cloudflare APO | 0.10 | 75.9% | 1,102 | |
| 7 | LiteSpeed Cache | 0.10 | 75.8% | 4,484 | |
| 8 | WP Rocket | 0.10 | 76.6% | 5,106 |
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
NitroPack 0.1% 189 0.09
FlyingPress 0.1% 200 0.08
W3 Total Cache 0.2% 316 0.08
Autoptimize 2% 3,758 0.09
WP Fastest Cache 1.2% 2,247 0.09
WP Rocket 2.7% 5,106 0.10
Cloudflare APO 0.6% 1,102 0.10
LiteSpeed Cache 2.4% 4,484 0.10
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
83% of NitroPack sites pass CLS. LiteSpeed Cache trails 7 points behind. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop 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
LiteSpeed Cache 2.4%
792.3s
9963ms
760.10
741.8s
431.5s
Autoptimize 2%
772.4s
10063ms
770.09
692.0s
341.6s
WP Fastest Cache 1.2%
832.1s
9959ms
770.09
781.7s
511.4s
W3 Total Cache 0.2%
782.2s
10062ms
790.08
711.9s
401.4s
FlyingPress 0.1%
792.4s
10076ms
800.08
731.9s
461.6s
WP Rocket 2.7%
812.2s
10064ms
770.10
761.8s
451.7s
Cloudflare APO 0.6%
732.6s
9969ms
760.10
662.1s
361.7s
NitroPack 0.1%
802.3s
10070ms
830.09
741.8s
321.6s
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.
NitroPack leads on CLS: 83% of its sites pass. Cloudflare APO trails at 76%. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv
Related signals Analytics (20) → Reviews (8) → Maps (4) → CMS (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.