The State of Web Vitals

Media per page

Audio and video elements on the page and their weight.

Field data PhoneDesktopAll Scope All sites Q2 2026 edition · All devices 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
39 KB
media weight
on the typical page
2.8 MB
1 in 4 pages exceed this
media weight
189,915
sites measured
all-device field data

The typical page embeds 0 media files.

The State of Web Vitals · Q2 2026 · 189,915 sites · all devices 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 85975 171949
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 · Q2 2026 · 189,915 sites · all devices 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
0 171,949 88% 0.00
1 7,791 89% 0.00
2 2,926 86% 0.01
3 2,955 87% 0.00
4 1,162 86% 0.01
5 705 86% 0.01
6–7 1,045 84% 0.01
8–9 440 85% 0.01
10–12 352 84% 0.01
13–16 231 87% 0.01
>p98 359 81% 0.01
Good Needs Improvement Poor Faded rows: under 100 sites

Media per page — n 0. p75 0. p99 6. Spearman with CLS r = +0.46. At the low end (0): CLS 0.00. At the high end (>p98): CLS 0.01. computed

The State of Web Vitals · Q2 2026 · 189,915 sites · all devices 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 3560 7119
0 0.1–0.364 0.364–1.32 1.32–4.81 4.81–17.5 17.5–63.7 63.7–232 232–843 843–3067 3067–11158 11158–40590 >p98
Good (≤0.1) Needs improvement Poor (>0.25) Site count
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices 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 7,119 88% 0.00
0.1–0.364 13 92% 0.00
0.364–1.32 38 89% 0.00
1.32–4.81 100 76% 0.03
4.81–17.5 500 87% 0.01
17.5–63.7 2,253 86% 0.01
63.7–232 1,307 85% 0.01
232–843 620 89% 0.01
843–3067 1,642 90% 0.00
3067–11158 2,730 88% 0.00
11158–40590 1,427 86% 0.01
>p98 217 83% 0.00
Good Needs Improvement Poor Faded rows: under 100 sites

Media per page — size 39 KB. p75 2.8 MB. p99 44.3 MB. At the low end (0 KB): CLS 0.00. At the high end (>p98): CLS 0.00. computed

The State of Web Vitals · Q2 2026 · 189,915 sites · all devices 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, 83% of sites pass the LCP. Where it is high, 74% 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 189,915 sites, representing millions of real page loads · How we measured