The State of Web Vitals

Media per page

Audio and video elements on the page and their weight.

Field data PhoneDesktopAll Scope All sites Q1 2026 edition · Phone field outcomes
Metric LCP INP CLS
1

At a glance the headline numbers for Media per page

Audio and video elements on the page and their weight.

0
media count
on the typical page
40 KB
media weight
on the typical page
2.9 MB
1 in 4 pages exceed this
media weight
94,910
sites measured
phone field data

The typical page embeds 0 media files.

The State of Web Vitals · Q1 2026 · 94,910 sites · phone field datacorewebvitals.io/state-of-cwv
2

Distribution & median CLS site count and median CLS at each level of media per page — n

0.00 0.04 0.08 0.11 0.15
0.1
0 42725 85449
0 1 2 3 4 5 6–7 8–9 10–12 13–16 >p98
Good (≤0.1) Needs improvement Poor (>0.25) Site count
The State of Web Vitals · Q1 2026 · 94,910 sites · phone field datacorewebvitals.io/state-of-cwv
3

Passing CLS by media per page — n which level passes the CLS most often

Media per page — nSitesPassing CLSCLS
0 85,449 89% 0.00
1 4,051 90% 0.00
2 1,555 89% 0.00
3 1,555 89% 0.00
4 605 88% 0.00
5 397 88% 0.00
6–7 599 84% 0.00
8–9 219 90% 0.00
10–12 175 83% 0.00
13–16 129 89% 0.00
>p98 176 79% 0.00
Good Needs Improvement Poor Faded rows: under 100 sites

Media per page — n 0. p75 0. p99 6. Spearman with CLS r = +0.52. At the low end (0): CLS 0.00. At the high end (>p98): CLS 0.00. computed

The State of Web Vitals · Q1 2026 · 94,910 sites · phone field datacorewebvitals.io/state-of-cwv
4

Distribution & median CLS site count and median CLS at each level of media per page — size

0.00 0.04 0.08 0.11 0.15
0.1
0 1868 3735
0 0.1–0.364 0.364–1.32 1.32–4.82 4.82–17.5 17.5–63.8 63.8–232 232–845 845–3073 3073–11181 11181–40685 >p98
Good (≤0.1) Needs improvement Poor (>0.25) Site count
The State of Web Vitals · Q1 2026 · 94,910 sites · phone field datacorewebvitals.io/state-of-cwv
5

Passing CLS by media per page — size which level passes the CLS most often

Media per page — sizeSitesPassing CLSCLS
0 3,735 89% 0.00
0.364–1.32 14 80% 0.01
1.32–4.82 56 79% 0.01
4.82–17.5 264 87% 0.00
17.5–63.8 1,161 88% 0.00
63.8–232 673 88% 0.00
232–845 333 89% 0.00
845–3073 875 90% 0.00
3073–11181 1,454 88% 0.00
11181–40685 776 87% 0.00
>p98 115 90% 0.00
Good Needs Improvement Poor Faded rows: under 100 sites

Media per page — size 40 KB. p75 2.9 MB. p99 45.2 MB. At the low end (0 KB): CLS 0.00. At the high end (>p98): CLS 0.00. computed

The State of Web Vitals · Q1 2026 · 94,910 sites · phone field datacorewebvitals.io/state-of-cwv
6

Why this matters for the Core Web Vitals, and where to start fixing it

When audio or video is present, it outweighs everything else on the page. An autoplaying background video competes with the LCP image for bandwidth at the worst moment, and on phones it burns data the visitor never asked for.

A poster image carries the experience until the visitor opts in. It loads like an image, it can be the LCP candidate, and the video starts on interaction. Autoplay hero video is the expensive way to do what a good photo does.

How does this affect the Core Web Vitals?

Media per page correlates with the LCP. Media count separates passing sites from failing sites more than media weight does. Where the media count is low, 82% of sites pass the LCP. Where it is high, 71% do. The decline is gradual. There is no point where sites suddenly start failing.

Go fix it Perfect YouTube Core Web Vitals → Page speed on a budget →
Related signals Stylesheets per page → Script initiator → Image dimensions set → Image source mix → Chrome field data from 94,910 sites, representing millions of real page loads · How we measured