1
At a glance the headline numbers for Video impact
Performance impact by video provider.
4
Providers ranked
After min-sites filter
30,292
Sites in sample
Combined across all items
0.01
Best CLS (p75)
Brightcove
The State of Web Vitals · October 2026 · WordPress sites (63,295) · phone field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Brightcove | 0.01 | 87.9% | 224 | |
| 2 | YouTube | 0.02 | 88.9% | 26,784 | |
| 3 | Wistia | 0.03 | 92.6% | 55 | |
| 4 | Vimeo | 0.03 | 87.0% | 3,229 |
The State of Web Vitals · October 2026 · WordPress sites (63,295) · phone field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Wistia 0.1% 55 0.03
YouTube 42.3% 26,784 0.02
Brightcove 0.4% 224 0.01
Vimeo 5.1% 3,229 0.03
JW Player 0% 28 0.08
Google IMA SDK 0% 22 0.33
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 89%. computed
The State of Web Vitals · October 2026 · WordPress sites (63,295) · 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 42.3%
662.8s
96127ms
890.02
542.4s
301.9s
Vimeo 5.1%
632.9s
97122ms
870.03
532.5s
281.9s
Brightcove 0.4%
662.8s
93135ms
880.01
592.4s
331.9s
Wistia 0.1%
443.5s
87145ms
930.03
413.0s
352.0s
JW Player 0%
822.2s
90145ms
860.08
681.9s
291.2s
Google IMA SDK 0%
712.6s
75177ms
590.33
941.4s
94662ms
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.
YouTube leads on CLS: 89% of its sites pass. Vimeo trails at 87%. computed
The State of Web Vitals · October 2026 · WordPress sites (63,295) · phone field datacorewebvitals.io/state-of-cwv
Related signals Font services (4) → Session recording (11) → A/B testing (12) → Ad networks (9) → 203,892 crawled sites with Chrome field data, representing millions of real page loads · How we measured
203,892 crawled sites with Chrome field data, representing millions of real page loads. How we measured.