The State of Web Vitals

Performance services impact React sites

Performance impact by performance provider.

Field data PhoneDesktopAll Scope All sites October 2026 edition · Phone field outcomes · React sites only
Metric LCP INP CLS
React Scoped to 9,570 sites out of 210,902 analyzed (frameworks) Compare with all sites →
1

At a glance the headline numbers for Performance services impact

Performance impact by performance provider.

4
Providers ranked
After min-sites filter
575
Sites in sample
Combined across all items
2.4s
Best LCP (p75)
WP Rocket
The State of Web Vitals · October 2026 · React sites (9,570) · phone field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by LCP at p75, fastest first

# Provider LCP p75 Passing Sites
1 WP Rocket 2.4s 77.5%
215
2 LiteSpeed Cache 2.4s 78.0%
160
3 Autoptimize 2.9s 60.9%
132
4 WP Fastest Cache 3.0s 63.4%
68
The State of Web Vitals · October 2026 · React sites (9,570) · phone field datacorewebvitals.io/state-of-cwv
3

Passing LCP per provider which group passes the LCP most often

ProviderSitesPassing LCPp75
FlyingPress 0.1% 14 100% 1.8s
LiteSpeed Cache 1.7% 160 78% 2.4s
WP Rocket 2.2% 215 78% 2.4s
NitroPack 0.1% 6 75% 2.2s
WP Fastest Cache 0.7% 68 63% 3.0s
Autoptimize 1.4% 132 61% 2.9s
W3 Total Cache 0.1% 8 50% 5.0s
Cloudflare APO 0.4% 42 48% 3.2s
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

78% of LiteSpeed Cache sites pass LCP. Autoptimize trails 17 points behind, leaving 39% of its sites failing. computed

The State of Web Vitals · October 2026 · React sites (9,570) · phone 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 2.2%
782.4s
92147ms
890.03
672.1s
411.9s
LiteSpeed Cache 1.7%
782.4s
99119ms
930.02
662.1s
441.6s
Autoptimize 1.4%
612.9s
100126ms
860.03
482.4s
202.0s
WP Fastest Cache 0.7%
633.0s
94112ms
810.07
622.7s
432.0s
Cloudflare APO 0.4%
483.2s
96142ms
900.01
352.8s
302.3s
FlyingPress 0.1%
1001.8s
100143ms
830.03
1001.5s
601.1s
W3 Total Cache 0.1%
505.0s
100102ms
830.02
504.2s
203.1s
NitroPack 0.1%
752.2s
100103ms
500.33
502.1s
331.5s
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.

WP Rocket leads on LCP: 78% of its sites pass. Autoptimize trails at 61%. computed

The State of Web Vitals · October 2026 · React sites (9,570) · phone field datacorewebvitals.io/state-of-cwv
Related signals Analytics (20) → Reviews (8) → Maps (4) → CMS (17) → 210,902 crawled sites with Chrome field data, representing millions of real page loads · How we measured