1
At a glance the headline numbers for Video impact
Performance impact by video provider.
6
Providers ranked
After min-sites filter
35,513
Sites in sample
Combined across all items
0.06
Best CLS (p75)
Wistia
The State of Web Vitals · Q1 2026 · 94,910 sites · desktop field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Wistia | 0.06 | 86.5% | 127 | |
| 2 | Vimeo | 0.10 | 75.9% | 2,637 | |
| 3 | YouTube | 0.10 | 77.0% | 32,031 | |
| 4 | JW Player | 0.14 | 70.4% | 90 | |
| 5 | Google IMA SDK | 0.15 | 58.8% | 81 | |
| 6 | Brightcove | 0.17 | 65.4% | 547 |
The State of Web Vitals · Q1 2026 · 94,910 sites · desktop field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Wistia 0.1% 127 0.06
YouTube 33.7% 32,031 0.10
Vimeo 2.8% 2,637 0.10
Vidyard 0% 6 0.05
JW Player 0.1% 90 0.14
Brightcove 0.6% 547 0.17
Google IMA SDK 0.1% 81 0.15
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
87% of Wistia sites pass CLS. Brightcove trails 22 points behind, leaving 35% of its sites failing. computed
The State of Web Vitals · Q1 2026 · 94,910 sites · desktop 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 33.7%
852.1s
9969ms
770.10
801.6s
581.2s
Vimeo 2.8%
782.4s
10066ms
760.10
741.8s
471.4s
Brightcove 0.6%
852.0s
9877ms
650.17
821.6s
69968ms
Wistia 0.1%
782.4s
9879ms
870.06
692.0s
511.3s
JW Player 0.1%
871.8s
9472ms
700.14
871.4s
75777ms
Google IMA SDK 0.1%
901.7s
9295ms
590.15
941.2s
86517ms
Vidyard 0%
506.6s
10098ms
750.05
505.3s
254.1s
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: 87% of its sites pass. Brightcove trails at 65%. computed
The State of Web Vitals · Q1 2026 · 94,910 sites · desktop 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 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.