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.

API name	Adverity UI name	Description	Use in Adverity
Accessibility score	Accessibility score	The Lighthouse accessibility score, indicating how well the page adheres to common accessibility best practices. A higher score signifies better accessibility for all users.	metric
Best-practices score	Best-practices score	The Lighthouse best practices score, evaluating the page against modern web development standards and recommended practices.	metric
Cumulative layout shift score	Cumulative layout shift score	The Lighthouse score for Cumulative Layout Shift (CLS), which quantifies the visual stability of a page by measuring the sum of all individual layout shift scores for every unexpected layout shift that occurs during the entire lifespan of the page.	metric
Cumulative layout shift value	Cumulative layout shift value	The numeric value of the Cumulative Layout Shift (CLS), representing the total layout shift score for the page.	metric
Final screenshot	Final screenshot	A base64 encoded image of the webpage’s final rendered state, capturing the visual appearance at the end of the page load.	dimension
First contentful paint score	First contentful paint score	The Lighthouse score for First Contentful Paint (FCP), measuring the time from when the page starts loading to when any part of the page’s content is rendered on the screen.	metric
First contentful paint value	First contentful paint value	The numeric value, in milliseconds, for First Contentful Paint (FCP), indicating how quickly the initial content of a page appears to the user.	metric
First input delay percentile	First input delay percentile	The 75th percentile of First Input Delay (FID), representing the time from when a user first interacts with a page (e.g., when they click a link, tap a button, or use a custom, JavaScript-powered control) to the time when the browser is actually able to begin processing event handlers in response to that interaction, as experienced by real users.	metric
Largest contentful paint score	Largest contentful paint score	The Lighthouse score for Largest Contentful Paint (LCP), which reports the render time of the largest image or text block visible within the viewport, relative to when the page first started loading.	metric
Largest contentful paint value	Largest contentful paint value	The numeric value, in milliseconds, for Largest Contentful Paint (LCP), indicating the perceived loading speed of the main content of the page.	metric
PWA score	PWA score	The Lighthouse Progressive Web App (PWA) score, assessing whether the webpage meets key PWA criteria for reliability, installability, and responsiveness.	metric
Performance score	Performance score	The overall Lighthouse performance score for the webpage, a weighted average of various performance metrics, indicating how fast and smooth the user experience is.	metric
Report Date	Report Date	The UTC timestamp when the PageSpeed analysis was performed and the report was generated.	dimension
SEO score	SEO score	The Lighthouse Search Engine Optimization (SEO) score, indicating how well the page adheres to basic SEO best practices.	metric
Time to interactive score	Time to interactive score	The Lighthouse score for Time to Interactive (TTI), measuring the time it takes for a page to become fully interactive, meaning the main thread is idle enough to handle user input.	metric
Time to interactive value	Time to interactive value	The numeric value, in milliseconds, for Time to Interactive (TTI), indicating when a page is visually rendered and capable of reliably responding to user input.	metric
Url	Url	The canonicalized and final URL of the document that was analyzed, after any page redirects.	dimension
lighthouseResult.categories.pwa.score	lighthouseResult.categories.pwa.score	The Lighthouse Progressive Web App (PWA) score, assessing whether the webpage meets key PWA criteria for reliability, installability, and responsiveness.	dimension