The State of Web Vitals

Performance services impact

Performance impact by performance provider.

Field data PhoneDesktopAll Scope All sites Q1 2026 edition · Phone field outcomes
Metric LCP INP CLS
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
2.1s
Best LCP (p75)
NitroPack
The State of Web Vitals · Q1 2026 · 94,910 sites · phone field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by LCP at p75, fastest first

# Provider LCP p75 Passing Sites
1 NitroPack 2.1s 86.7%
96
2 LiteSpeed Cache 2.2s 84.2%
2,385
3 FlyingPress 2.2s 86.9%
108
4 WP Rocket 2.3s 79.9%
2,684
5 W3 Total Cache 2.5s 77.1%
157
6 Cloudflare APO 2.7s 69.8%
846
7 WP Fastest Cache 2.8s 69.5%
1,164
8 Autoptimize 2.8s 66.5%
1,926
The State of Web Vitals · Q1 2026 · 94,910 sites · phone field datacorewebvitals.io/state-of-cwv
3

Passing LCP per provider which group passes the LCP most often

ProviderSitesPassing LCPp75
FlyingPress 0.1% 108 87% 2.2s
NitroPack 0.1% 96 87% 2.1s
LiteSpeed Cache 2.5% 2,385 84% 2.2s
WP Rocket 2.8% 2,684 80% 2.3s
W3 Total Cache 0.2% 157 77% 2.5s
Cloudflare APO 0.9% 846 70% 2.7s
WP Fastest Cache 1.2% 1,164 70% 2.8s
Autoptimize 2% 1,926 67% 2.8s
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

87% of FlyingPress sites pass LCP. Autoptimize trails 20 points behind, leaving 33% of its sites failing. computed

The State of Web Vitals · Q1 2026 · 94,910 sites · 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 2.8%
802.3s
94136ms
890.02
722.0s
501.5s
LiteSpeed Cache 2.5%
842.2s
97121ms
900.01
771.8s
551.2s
Autoptimize 2%
672.8s
96125ms
910.02
572.3s
281.9s
WP Fastest Cache 1.2%
702.8s
97116ms
890.02
612.3s
431.8s
Cloudflare APO 0.9%
702.7s
93130ms
890.03
592.2s
341.7s
W3 Total Cache 0.2%
772.5s
96120ms
880.02
642.3s
401.5s
FlyingPress 0.1%
872.2s
98136ms
860.04
791.6s
69878ms
NitroPack 0.1%
872.1s
91137ms
880.04
751.8s
461.3s
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.

FlyingPress leads on LCP: 87% of its sites pass. Autoptimize trails at 67%. computed

The State of Web Vitals · Q1 2026 · 94,910 sites · phone 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