Theme Vitals
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Get assistanceCore Web Vitals for Themes, 12/25
The median performance for each Core Web Vital metric for all themes in the latest data set. The small tic marks indicate the minimums (pink) and maximums (green). Explore the data for each theme.
All good 83.9%
All Core Web Vitals
Median: 83.9%, Minimum: 13.3%, Maximum: 98.4%
Good LCP 91.8%
Largest Contentful Paint
Median: 91.8%, Minimum: 60.0%, Maximum: 100.0%
Good CLS 95.5%
Cumulative Layout Shift
Median: 95.5%, Minimum: 36.7%, Maximum: 100.0%
Good INP 95.0%
Interaction to Next Paint
Median: 95.0%, Minimum: 35.2%, Maximum: 100.0%
All good 84.2%
All Core Web Vitals
Median: 84.2%, Minimum: 21.0%, Maximum: 97.7%
Good LCP 97.3%
Largest Contentful Paint
Median: 97.3%, Minimum: 83.5%, Maximum: 100.0%
Good CLS 88.2%
Cumulative Layout Shift
Median: 88.2%, Minimum: 21.8%, Maximum: 98.9%
Good INP 99.9%
Interaction to Next Paint
Median: 99.9%, Minimum: 94.0%, Maximum: 100.0%
Median % passing all CWV over time
For all themes with performance data, the median percent of websites passing all Core Web Vitals (CWV) for each month.
In Dec 2025, on mobile devices, websites passing All Core Web Vitals stayed the same at 83.90%. On desktop devices, it decreased by 1.15 percentage points to 84.20%.
All Core Web Vitals by month line chart for the months 07/25, 08/25, 09/25, 10/25, 11/25, 12/25. The mobile data is: 83.9, 84.5, 83.4, 83.44999999999999, 83.9, 83.9. On desktop, the data is: 83.5, 83.6, 84.35, 83.94999999999999, 85.35, 84.2.
Number of themes with improved CWV
For all themes with performance data, the number of themes which improved in their passing all Core Web Vitals (CWV) metric as well as how many got worse or stayed the same.
In Dec 2025, on mobile devices, 46% of themes improved their passing CWV score. On desktop, 25% of themes improved.
Mobile
Pie chart for mobile devices: number of themes with improved performance was 107, with worsened performance was 115, and with no change was 10
Desktop
Pie chart for desktop devices: number of themes with improved performance was 48, with worsened performance was 143, and with no change was 4
Median % passing LCP over time
For all themes with performance data, the median percent of websites passing Largest Contentful Paint (LCP) for each month.
In Dec 2025, on mobile devices, websites passing Largest Contentful Paint decreased by 0.35 percentage points to 91.80%. On desktop devices, it decreased by 0.35 percentage points to 97.30%.
Largest Contentful Paint by month line chart for the months 07/25, 08/25, 09/25, 10/25, 11/25, 12/25. The mobile data is: 92, 92.4, 91, 91.35, 92.15, 91.8. On desktop, the data is: 96.7, 96.8, 96.9, 97.05, 97.65, 97.3.
Median % passing CLS over time
For all themes with performance data, the median percent of websites passing Cumulative Layout Shift (CLS) for each month.
In Dec 2025, on mobile devices, websites passing Cumulative Layout Shift increased by 0.05 percentage points to 95.45%. On desktop devices, it decreased by 0.40 percentage points to 88.20%.
Cumulative Layout Shift by month line chart for the months 07/25, 08/25, 09/25, 10/25, 11/25, 12/25. The mobile data is: 95.6, 95.6, 95.6, 95.1, 95.4, 95.45. On desktop, the data is: 88.25, 88.9, 88.65, 88.8, 88.6, 88.2.
Median % passing INP over time
For all themes with performance data, the median percent of websites passing Interaction to Next Paint (INP) for each month.
In Dec 2025, on mobile devices, websites passing Interaction to Next Paint increased by 0.15 percentage points to 94.95%. On desktop devices, it decreased by 0.10 percentage points to 99.90%.
Interaction to Next Paint by month line chart for the months 07/25, 08/25, 09/25, 10/25, 11/25, 12/25. The mobile data is: 94.45, 94.65, 94.8, 94.5, 94.8, 94.95. On desktop, the data is: 99.9, 100, 99.9, 100, 100, 99.9.
Number of Shopify websites over time
How many websites (origins) were included in this analysis for each month. This is the total number of Shopify websites with or without a theme store theme.
In Dec 2025, on mobile devices, total number of origins (websites) increased by 0.02% to 602,654. On desktop devices, it decreased by 0.07% to 288,690.
Origins by month line chart for the months 07/25, 08/25, 09/25, 10/25, 11/25, 12/25. The mobile data is: 539395, 552611, 564516, 569727, 592905, 602654. On desktop, the data is: 271738, 276382, 282412, 286524, 308948, 288690.