The State of Web Vitals

Page weight & requests

Every request the page makes on a cold load: request count and total transfer size over the wire.

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

At a glance the headline numbers for Page weight & requests

Every request the page makes on a cold load: request count and total transfer size over the wire.

72
request count
on the typical page
2.5 MB
page weight
on the typical page
4.7 MB
1 in 4 pages exceed this
page weight
94,910
sites measured
all-device field data

The typical page weighs 2.5 MB across 72 requests.

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

Distribution & median CLS site count and median CLS at each level of page weight & requests — n

0.00 0.04 0.08 0.11 0.15
0.1
0 13887 27773
0 1–2 3 4–6 7–11 12–19 20–34 35–62 63–112 113–202 203–365 >p98
Good (≤0.1) Needs improvement Poor (>0.25) Site count
The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
3

Passing CLS by page weight & requests — n which level passes the CLS most often

Page weight & requests — nSitesPassing CLSCLS
1–2 1,124 87% 0.00
3 248 90% 0.00
4–6 728 90% 0.00
7–11 1,292 92% 0.00
12–19 3,406 91% 0.00
20–34 10,425 92% 0.00
35–62 23,047 90% 0.00
63–112 27,773 86% 0.00
113–202 17,897 85% 0.01
203–365 7,089 86% 0.01
>p98 1,878 84% 0.02
Good Needs Improvement Poor Faded rows: under 100 sites

Page weight & requests — n 72. p75 122. p99 436. At the low end (1–2): CLS 0.00. At the high end (>p98): CLS 0.02. computed

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

Distribution & median CLS site count and median CLS at each level of page weight & requests — size

0.00 0.04 0.08 0.11 0.15
0.1
0 20968 41935
0 0.1–0.346 0.346–1.2 1.2–4.15 4.15–14.4 14.4–49.8 49.8–172 172–596 596–2065 2065–7149 7149–24753 >p98
Good (≤0.1) Needs improvement Poor (>0.25) Site count
The State of Web Vitals · Q1 2026 · 94,910 sites · all devices field datacorewebvitals.io/state-of-cwv
5

Passing CLS by page weight & requests — size which level passes the CLS most often

Page weight & requests — sizeSitesPassing CLSCLS
0 150 84% 0.01
0.1–0.346 193 89% 0.00
0.346–1.2 440 88% 0.00
1.2–4.15 368 84% 0.00
4.15–14.4 266 88% 0.00
14.4–49.8 526 89% 0.00
49.8–172 1,080 92% 0.00
172–596 5,619 93% 0.00
596–2065 30,318 91% 0.00
2065–7149 41,935 86% 0.00
7149–24753 12,119 84% 0.01
>p98 1,896 84% 0.01
Good Needs Improvement Poor Faded rows: under 100 sites

Page weight & requests — size 2.5 MB. p75 4.7 MB. p99 34.1 MB. At the low end (0 KB): CLS 0.01. At the high end (>p98): CLS 0.01. computed

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

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

Page weight is a bandwidth problem. The network can only move so many bytes per second and every resource on the page competes for that capacity. The LCP image does not load alone. It shares bandwidth with every script, stylesheet and tracking pixel that loads at the same time. A heavier page means the main content arrives later.

Request count matters next to the bytes. Every request adds queueing and scheduling overhead. On a busy connection important requests wait behind unimportant ones. Script bytes keep costing after the download. The main thread has to parse and execute them, and that delays interactions (INP). The resource type breakdown shows where the bytes sit.

How does page weight affect the Core Web Vitals?

Page weight & requests correlate with the LCP. Page weight separates passing sites from failing sites more than request count does. Where the page weight is low, 83% of sites pass the LCP. Where it is high, 73% do. The decline is gradual. There is no point where sites suddenly start failing.

Go fix it Bytes by resource type → Page speed on a budget → Reduce unused JavaScript → Optimize images for Core Web Vitals →
Related signals Cookies per site → Stylesheet initiator → Script coverage (used vs unused) → font-display strategy → Chrome field data from 94,910 sites, representing millions of real page loads · How we measured