1
At a glance the headline numbers for Video impact
Performance impact by video provider.
6
Providers ranked
After min-sites filter
75,046
Sites in sample
Combined across all items
0.05
Best CLS (p75)
Vimeo
The State of Web Vitals · October 2026 · 210,902 crawled sites · all devices field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Vimeo | 0.05 | 86.1% | 5,591 | |
| 2 | YouTube | 0.05 | 86.1% | 67,665 | |
| 3 | Wistia | 0.06 | 89.2% | 258 | |
| 4 | Brightcove | 0.06 | 84.6% | 1,178 | |
| 5 | JW Player | 0.09 | 78.4% | 195 | |
| 6 | Google IMA SDK | 0.13 | 66.9% | 159 |
The State of Web Vitals · October 2026 · 210,902 crawled sites · all devices field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Wistia 0.1% 258 0.06
YouTube 32.1% 67,665 0.05
Vimeo 2.7% 5,591 0.05
Brightcove 0.6% 1,178 0.06
JW Player 0.1% 195 0.09
Google IMA SDK 0.1% 159 0.13
Vidyard 0% 7 0.18
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
89% of Wistia sites pass CLS. Google IMA SDK trails 22 points behind, leaving 33% of its sites failing. computed
The State of Web Vitals · October 2026 · 210,902 crawled sites · all devices 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%
792.3s
95117ms
860.05
721.9s
521.4s
Vimeo 2.7%
722.6s
97111ms
860.05
652.1s
401.6s
Brightcove 0.6%
862.1s
92118ms
850.06
791.6s
68901ms
Wistia 0.1%
702.7s
93136ms
890.06
642.3s
401.4s
JW Player 0.1%
822.0s
89124ms
780.09
801.7s
70923ms
Google IMA SDK 0.1%
881.8s
79180ms
670.13
891.3s
90563ms
Vidyard 0%
436.7s
83153ms
570.18
575.5s
293.8s
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: 89% of its sites pass. Google IMA SDK trails at 67%. computed
The State of Web Vitals · October 2026 · 210,902 crawled sites · all devices field datacorewebvitals.io/state-of-cwv
Related signals Font services (4) → Session recording (11) → A/B testing (12) → Ad networks (9) → 210,902 crawled sites with Chrome field data, representing millions of real page loads · How we measured
210,902 crawled sites with Chrome field data, representing millions of real page loads. How we measured.