The State of Web Vitals

Performance services impact

Performance impact by performance provider.

Field data PhoneDesktopAll Scope All sites Q2 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
17,376
Sites in sample
Combined across all items
0.01
Best CLS (p75)
LiteSpeed Cache
The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by CLS at p75, fastest first

# Provider CLS p75 Passing Sites
1 LiteSpeed Cache 0.01 90.1%
4,480
2 W3 Total Cache 0.02 89.0%
315
3 WP Fastest Cache 0.02 88.7%
2,240
4 Autoptimize 0.02 91.1%
3,754
5 WP Rocket 0.02 89.6%
5,098
6 FlyingPress 0.03 86.8%
200
7 Cloudflare APO 0.03 89.5%
1,100
8 NitroPack 0.04 90.1%
189
The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
3

Passing CLS per provider which group passes the CLS most often

ProviderSitesPassing CLSp75
Autoptimize 2% 3,754 91% 0.02
LiteSpeed Cache 2.4% 4,480 90% 0.01
NitroPack 0.1% 189 90% 0.04
WP Rocket 2.7% 5,098 90% 0.02
Cloudflare APO 0.6% 1,100 90% 0.03
W3 Total Cache 0.2% 315 89% 0.02
WP Fastest Cache 1.2% 2,240 89% 0.02
FlyingPress 0.1% 200 87% 0.03
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 91%. computed

The State of Web Vitals · Q2 2026 · 189,915 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 2.7%
812.3s
94135ms
900.02
721.9s
511.5s
LiteSpeed Cache 2.4%
842.2s
97121ms
900.01
771.8s
561.2s
Autoptimize 2%
682.8s
96124ms
910.02
562.3s
291.9s
WP Fastest Cache 1.2%
692.7s
97118ms
890.02
612.3s
431.7s
Cloudflare APO 0.6%
692.7s
92139ms
900.03
572.3s
331.8s
W3 Total Cache 0.2%
752.5s
96121ms
890.02
642.2s
411.5s
FlyingPress 0.1%
792.4s
95141ms
870.03
731.8s
611.2s
NitroPack 0.1%
842.1s
93137ms
900.04
721.9s
451.3s
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.

Autoptimize leads on CLS: 91% of its sites pass. FlyingPress trails at 87%. computed

The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
Related signals Analytics (20) → Reviews (8) → Maps (4) → Consent platforms (16) → Chrome field data from 189,915 sites, representing millions of real page loads · How we measured