If available, you can also view a source snippet along with the specific URL you are testing. Essentially, this allows you to see a comparison between a specific page and all pages in the original.
It's important to know that the field data is aggregated from actual users on Chrome. But the URL you entered may not have enough data. If this is the case, you will only be able to view "Lab Data".
Origin Summary
This measures the time taken from navigating to the page to the time the first bit of content is rendered from the DOM. This is the first milestone that shows the page is starting to load. FCP reports how quickly it got to this point.
First Input Delay (FID)
This is a key metric for measuring load responsiveness algeria mobile database because it quantifies how quickly the page responds to user input, such as mouse clicks.
A low FID indicates that the page could be used more quickly. However, since FCP measures how quickly a page starts loading, it can indicate the user's first impression when they actually interact with the page.
Laboratory data
How Lab data is displayed in the Lighthouse analysis of a page
In contrast to “live data,” “lab data” is based on Lighthouse analysis of the page and simulated devices and connections. While this won’t show real-world data, it’s still useful for understanding where problems are occurring. Again, PageSpeed Insights uses its familiar traffic light color system to represent performance here: circles showing green scores, squares in orange, and triangles in red.