Performance services impact WordPress sites
Performance impact by performance provider.
1
At a glance the headline numbers for Performance services impact
Performance impact by performance provider.
8
Providers ranked
After min-sites filter
15,516
Sites in sample
Combined across all items
0.04
Best CLS (p75)
WP Fastest Cache
The State of Web Vitals · October 2026 · WordPress sites (63,295) · all devices field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | WP Fastest Cache | 0.04 | 86.7% | 2,014 | |
| 2 | Autoptimize | 0.04 | 89.4% | 3,652 | |
| 3 | LiteSpeed Cache | 0.04 | 88.6% | 4,083 | |
| 4 | WP Rocket | 0.04 | 87.6% | 4,279 | |
| 5 | NitroPack | 0.05 | 88.2% | 183 | |
| 6 | FlyingPress | 0.05 | 89.4% | 191 | |
| 7 | W3 Total Cache | 0.05 | 88.8% | 302 | |
| 8 | Cloudflare APO | 0.05 | 86.8% | 812 |
The State of Web Vitals · October 2026 · WordPress sites (63,295) · all devices field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Autoptimize 5.8% 3,652 0.04
FlyingPress 0.3% 191 0.05
W3 Total Cache 0.5% 302 0.05
LiteSpeed Cache 6.5% 4,083 0.04
NitroPack 0.3% 183 0.05
WP Rocket 6.8% 4,279 0.04
Cloudflare APO 1.3% 812 0.05
WP Fastest Cache 3.2% 2,014 0.04
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 87% and 89%. computed
The State of Web Vitals · October 2026 · WordPress sites (63,295) · 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 6.8%
782.4s
97115ms
880.04
692.0s
441.7s
LiteSpeed Cache 6.5%
832.2s
99101ms
890.04
761.8s
521.3s
Autoptimize 5.8%
682.8s
98110ms
890.04
562.4s
262.0s
WP Fastest Cache 3.2%
692.7s
99104ms
870.04
622.3s
421.8s
Cloudflare APO 1.3%
652.8s
96114ms
870.05
552.4s
272.0s
W3 Total Cache 0.5%
742.5s
98107ms
890.05
622.2s
371.7s
FlyingPress 0.3%
842.3s
97114ms
890.05
741.9s
561.4s
NitroPack 0.3%
792.3s
97112ms
880.05
721.9s
391.6s
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.
LiteSpeed Cache leads on CLS: 89% of its sites pass. Cloudflare APO trails at 87%. computed
The State of Web Vitals · October 2026 · WordPress sites (63,295) · all devices field datacorewebvitals.io/state-of-cwv
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