iwebsitez.com researchHTTP Archive dataUpdated 2026

Website Performance Statistics 2026

Current statistics on Core Web Vitals, page weight, requests, JavaScript and real-world website performance.

This page combines Google’s current Core Web Vitals guidance with HTTP Archive and Web Almanac measurements of millions of real pages. It shows what a typical modern page looks like — and how far the web still has to go.

See the statistics Methodology

Website performance at a glance

Modern pages are heavy, and good Core Web Vitals are not universal

HTTP Archive’s September 2026 measurements and the 2025 Web Almanac provide large-scale performance benchmarks.

Core Web Vitals48%

of mobile websites had good Core Web Vitals in 2025

Less than half of mobile websites met the combined good threshold in Web Almanac data.

Web Almanac 2025

Core Web Vitals56%

of desktop websites had good Core Web Vitals in 2025

Desktop performance was stronger than mobile, but a large share of sites still fell outside the good range.

Web Almanac 2025

Page weight2.99 MB

median desktop page transfer size in September 2026

HTTP Archive measured a median of 2,994 KB across desktop pages.

HTTP Archive

Page weight2.63 MB

median mobile page transfer size in September 2026

The median mobile page transferred 2,629 KB of resources.

HTTP Archive

Requests76

median requests on desktop

At the 90th percentile, HTTP Archive measured 221 desktop requests.

HTTP Archive, Sep 2026

Requests70

median requests on mobile

At the 90th percentile, mobile pages reached 211 requests.

HTTP Archive, Sep 2026

Google thresholds

What counts as good Core Web Vitals?

Google defines three Core Web Vitals and evaluates them at the 75th percentile of page views.

≤2.5sLargest Contentful Paint — loading performanceGoogle threshold

≤200msInteraction to Next Paint — responsivenessGoogle threshold

≤0.1Cumulative Layout Shift — visual stabilityGoogle threshold

Google Search Central Threshold methodology

Page weight statistics

Images and JavaScript account for a large share of transferred data

September 2026 HTTP Archive medians show where modern page weight is concentrated.

Desktop images1,040 KB

median image transfer size

At the 90th percentile, desktop image transfer size reached 7,146.6 KB.

Mobile images880 KB

median image transfer size

At the 90th percentile, mobile image transfer size reached 6,468.9 KB.

Desktop JavaScript772.8 KB

median JavaScript transfer size

The median desktop page requested 23 external JavaScript resources.

Mobile JavaScript689.1 KB

median JavaScript transfer size

The median mobile page requested 21 external JavaScript resources.

HTTP Archive Page Weight report, September 2026.

Core Web Vitals trend

Performance improved in 2025, especially on mobile

The Web Almanac tracks the proportion of websites meeting good Core Web Vitals over time.

Mobile

36% → 44% → 48%

Good Core Web Vitals across mobile websites increased from 36% in 2023 to 44% in 2024 and 48% in 2025.

Desktop

48% → 55% → 56%

Desktop websites increased from 48% in 2023 to 55% in 2024 and 56% in 2025.

HTTP Archive Web Almanac 2025 — Performance.

Search visibility

Core Web Vitals are used by Google’s ranking systems

Google says Core Web Vitals are used by its ranking systems, but there is no single page-experience signal and good scores do not guarantee top rankings. Relevance remains central.

CWVused by Google ranking systemsGoogle Search Central

Nosingle combined “page experience” ranking signalGoogle Search Central

Page-levelpage experience is generally evaluated on a page-specific basisGoogle Search Central

Google page-experience documentation

CMS performance statistics

Platform choice changes the performance baseline

The Web Almanac’s 2025 CMS chapter compared mobile Core Web Vitals across major CMS platforms.

Duda

85%

TYPO3

79%

Wix

74%

Weebly

47%

WordPress

45%

The Web Almanac notes that tightly managed platforms often perform better because they control more of the stack. Open platforms such as WordPress are more extensible, so implementation matters heavily. Source.

Methodology

How these performance statistics are selected

We use Google’s official thresholds and ranking guidance for definitions, then HTTP Archive and the Web Almanac for large-scale measurements of real pages. Monthly 2026 figures are kept separate from annual 2025 data.

01Definitions from Google

LCP, INP and CLS thresholds come from Google’s own documentation.

02Large-scale field data

HTTP Archive and CrUX-backed Web Almanac research provide real-world measurements.

03Dates stay visible

September 2026 monthly measurements are not mixed silently with 2025 annual data.

04No ranking guarantees

Google’s caveats about page experience remain alongside the statistics.

Primary sources

Research used on this page

Google documentationCore Web Vitals and SearchLCP, INP and CLS thresholds Google documentationUnderstanding page experienceRanking-system guidance and caveats Google web.devHow Core Web Vitals thresholds were defined75th-percentile methodology Live web measurementHTTP Archive Page WeightSeptember 2026 medians Annual researchWeb Almanac 2025 — PerformanceCore Web Vitals trend Annual researchWeb Almanac 2025 — CMSPlatform-level CWV performance

Cite this page

Use the original performance source where possible

For individual figures, cite Google or HTTP Archive directly. If you reference this collection, credit iwebsitez.com and link to this page.

Suggested citationiwebsitez.com, “Website Performance Statistics 2026”.

Research enquiries

Questions about a benchmark?

Contact Pete if you need clarification on how a performance figure is presented.

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Website Performance Statistics 2026

Website performance at a glance

of mobile websites had good Core Web Vitals in 2025

of desktop websites had good Core Web Vitals in 2025

median desktop page transfer size in September 2026

median mobile page transfer size in September 2026

median requests on desktop

median requests on mobile

What counts as good Core Web Vitals?

Page weight statistics

median image transfer size

median image transfer size

median JavaScript transfer size

median JavaScript transfer size

Core Web Vitals trend

36% → 44% → 48%

48% → 55% → 56%

Core Web Vitals are used by Google’s ranking systems

CMS performance statistics

Methodology

Primary sources

Cite this page

Questions about a benchmark?

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