Table of Contents
Overview
Throughout the portal, you may see variances in how percentile is being calculated. In this article, we will outline how percentile is handled on each page or report listed below.
Breakdown by Page/Report
Performance Details Page
- The Page Timings Over Time line graph is grouping the data into buckets. The size of these buckets are dependent on the time period selected. When the bucket size is set to Auto in the filter menu, the buckets are:
-
- Less than 6 hours - 1 minute buckets
- More than 6 hours but less than 24 hours - 5 minute buckets
- More than 24 hours - Hourly buckets
- More than 21 days - Daily buckets
- This graph is grouped by time and each time bucket produces a measurement for a percentile. When hovering over a data point, there will be a card including the correct percentile for that data point.
-
- The cards at the top of the page for each Performance Metric is calculated based on the corresponding line graph below. These numbers are based on calculating the weighted average each of those data points.
-
- When using percentile, these cards are reflecting the average of a percentile. We are in the process of updating the methodology so the cards are not calculated based on the line graph, and instead will be a percentile of the entire time period.
- In the meantime, we recommend using the Core Web Vitals By Site report or Performance Overview page.
- When using percentile, these cards are reflecting the average of a percentile. We are in the process of updating the methodology so the cards are not calculated based on the line graph, and instead will be a percentile of the entire time period.
-
Data Science
- When using the line graph in Data Science, it is created the same way as the Performance Details Page
- The Averages table below the graph is also calculated the same way as the Performance Details card.
- This page will be impacted by the same updates as the Performance Details methodology changes.
Performance Overview Page
- This page does not follow the same methodology of the Performance Details or Data Science Pages. When using percentile on this page, the data reflected is the percentile for the entire time period selected.
Core Web Vitals Automated Report
- When looking at the Core Web Vitals By Site Automated report, the data is grouped into daily buckets, the percentile displayed in the table is the percentile for that day.
- This is similar to each data point in the line graphs on Performance Details and Data Science.
Comments
0 comments
Please sign in to leave a comment.