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
0.01
Best CLS (p75)
LiteSpeed Cache
The State of Web Vitals · Q1 2026 · 94,910 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 | 89.6% | 2,385 | |
| 2 | W3 Total Cache | 0.02 | 87.5% | 157 | |
| 3 | WP Fastest Cache | 0.02 | 89.2% | 1,164 | |
| 4 | Autoptimize | 0.02 | 90.7% | 1,926 | |
| 5 | WP Rocket | 0.02 | 89.1% | 2,684 | |
| 6 | Cloudflare APO | 0.03 | 89.4% | 846 | |
| 7 | NitroPack | 0.04 | 88.1% | 96 | |
| 8 | FlyingPress | 0.04 | 85.5% | 108 |
The State of Web Vitals · Q1 2026 · 94,910 sites · phone field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Autoptimize 2% 1,926 0.02
LiteSpeed Cache 2.5% 2,385 0.01
Cloudflare APO 0.9% 846 0.03
WP Fastest Cache 1.2% 1,164 0.02
WP Rocket 2.8% 2,684 0.02
NitroPack 0.1% 96 0.04
W3 Total Cache 0.2% 157 0.02
FlyingPress 0.1% 108 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
91% of Autoptimize sites pass CLS. FlyingPress trails 5 points behind. 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.
Autoptimize leads on CLS: 91% of its sites pass. FlyingPress trails at 86%. 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
Chrome field data from 94,910 sites, representing millions of real page loads. How we measured.