1
At a glance the headline numbers for Video impact
Performance impact by video provider.
6
Providers ranked
After min-sites filter
67,578
Sites in sample
Combined across all items
0.03
Best CLS (p75)
YouTube
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 | YouTube | 0.03 | 87.1% | 60,939 | |
| 2 | Vimeo | 0.04 | 86.1% | 5,029 | |
| 3 | Brightcove | 0.05 | 85.4% | 1,053 | |
| 4 | Wistia | 0.06 | 88.4% | 242 | |
| 5 | JW Player | 0.08 | 78.8% | 174 | |
| 6 | Google IMA SDK | 0.12 | 67.5% | 141 |
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
Wistia 0.1%
242
0.06
YouTube 32.1%
60,939
0.03
Vimeo 2.6%
5,029
0.04
Brightcove 0.6%
1,053
0.05
JW Player 0.1%
174
0.08
Google IMA SDK 0.1%
141
0.12
Vidyard 0%
7
0.37
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
88% of Wistia sites pass CLS. Google IMA SDK trails 20 points behind, leaving 32% of its sites failing. 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
YouTube 32.1%
782.4s
92138ms
870.03
711.9s
531.3s
Vimeo 2.6%
702.7s
95129ms
860.04
622.2s
401.6s
Brightcove 0.6%
812.2s
88142ms
850.05
751.8s
64996ms
Wistia 0.1%
653.0s
93156ms
880.06
612.5s
361.4s
JW Player 0.1%
812.2s
84157ms
790.08
751.8s
65986ms
Google IMA SDK 0.1%
851.9s
72206ms
680.12
901.4s
91585ms
Vidyard 0%
206.8s
60293ms
600.37
206.8s
203.7s
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.
Wistia leads on CLS: 88% of its sites pass. Google IMA SDK trails at 68%. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · phone field datacorewebvitals.io/state-of-cwv
Related signals
Font services (4) →
Session recording (11) →
A/B testing (10) →
Ad networks (9) →
Chrome field data from 189,915 sites, representing millions of real page loads · How we measured
Chrome field data from 189,915 sites, representing millions of real page loads. How we measured.