Google PageSpeed Basic: Most-used fields#
The table below gives information about most-used fields that you can import from Google PageSpeed Basic. Other fields might also be available in Adverity.
The fields that you can fetch in Adverity are updated regularly to reflect updates to data source APIs.
Accessibility score Metric
A score ranging from 0 to 100 that indicates how accessible a webpage is, with higher scores representing better adherence to accessibility best practices. Scores of 90+ are considered good.
Cumulative layout shift score Metric
The score for Cumulative Layout Shift (CLS), a Core Web Vital that quantifies the visual stability of a webpage by measuring unexpected layout shifts during load. A lower score (closer to 0) indicates better stability.
Cumulative layout shift value Metric
A metric that measures the visual stability of a webpage by quantifying unexpected layout shifts during the loading phase. A lower value indicates a more stable page layout, improving user experience.
Final screenshot Dimension
This field provides a base64 encoded image representing the final visual state of the webpage after the PageSpeed Insights analysis is complete. It offers a visual summary of how the page appears once fully loaded.
First contentful paint score Metric
The score for First Contentful Paint (FCP), a metric that measures the time until the first piece of content (text or image) is visibly rendered on the page.
First contentful paint value Metric
The time it takes for the first piece of content (text, image, or non-white canvas) to be visibly rendered on the screen from when the page starts loading.
First input delay percentile Metric
A metric measuring the time from when a user first interacts with a page (e.g., clicks a button) to the time when the browser is actually able to begin processing that interaction. It reflects the page's responsiveness to user input.
Largest contentful paint score Metric
The score for Largest Contentful Paint (LCP), a Core Web Vital that measures the time it takes for the largest content element (e.g., image or text block) to become visible within the viewport.
Largest contentful paint value Metric
The time it takes for the largest content element visible within the viewport to be rendered, providing an indicator of when the main content of the page has loaded.
PWA score Metric
The Lighthouse audit score for Progressive Web App (PWA) best practices. This score indicates how well the website adheres to PWA guidelines, covering aspects like installability, performance, and reliability.
Performance score Metric
An aggregated score from 0 to 100 that summarizes a webpage's overall performance. It is calculated from various performance metrics, with higher scores indicating faster loading and better user experience. Scores of 90+ are considered good.
Report Date Dimension
The UTC timestamp when the PageSpeed analysis was performed for the given URL.
SEO score Metric
The Lighthouse Search Engine Optimization (SEO) score, indicating how well the page adheres to basic SEO best practices.
Time to interactive score Metric
The score for Time To Interactive (TTI), a performance metric that measures the time it takes for a page to become fully interactive after loading and responsiveness to user input.
Time to interactive value Metric
The raw measured value for Time To Interactive (TTI), which indicates the time it takes for a page to become fully interactive and responsive to user input.
Url Dimension
The URL of the webpage that was analyzed by Google PageSpeed Insights.
lighthouseResult.categories.pwa.score Dimension
The Progressive Web App (PWA) score from the Lighthouse analysis, accessible within the Lighthouse results under the categories object. This score, ranging from 0-100, measures the webpage's adherence to PWA best practices.