The History Center is included in all packages. No setup is required.
Navigation
This section provides instructions on how to navigate through the History Center module.
Click History Center (bar graph icon), located on the top menu bar, or click the Show History link in the History Center section on the dashboard.
The History Center landing page opens.
Note
An orange line for the All Modules indicator on the graph indicates that an upgrade was done on the account, for example with a new browser service. This line shows the difference in results versus before the upgrade, due to the new way the pages are rendered. This upgrade could affect the compliance score. Click on the orange line for further explanations and details.
Performance (glossary term, activate to view definition) Pages: Number of pages from the scan that were checked for performance issues.
Avg. Performance Score: The average of the overall performance score percentage. This is a weighted average of the metric scores, which means that some metrics have more impact on your overall Performance score. This figure is calculated in the background, it is not an average of the statistics in the shown categories.
Data Privacy
Crawled at: Date and time of scan
Count of pages with Data Privacy (glossary term, activate to view definition) (DP) issues
How to use the History Center (glossary term, activate to view definition)
Setup
The History Center is included in all packages. No setup is required.
Navigation
This section provides instructions on how to navigate through the History Center module.
Click History Center (bar graph icon), located on the top menu bar, or click the Show History link in the History Center section on the dashboard.
The History Center landing page opens.
Note
An orange line for the All Modules indicator on the graph indicates that an upgrade was done on the account, for example with a new browser service. This line shows the difference in results versus before the upgrade, due to the new way the pages are rendered. This upgrade could affect the compliance score. Click on the orange line for further explanations and details.
Performance (glossary term, activate to view definition) Pages: Number of pages from the scan that were checked for performance issues.
Avg. Performance Score: The average of the overall performance score percentage. This is a weighted average of the metric scores, which means that some metrics have more impact on your overall Performance score. This figure is calculated in the background, it is not an average of the statistics in the shown categories.
Data Privacy
Crawled at: Date and time of scan
Count of pages with Data Privacy (glossary term, activate to view definition) (DP) issues
Changes Since Previous Crawl: Percentage of changes made since the last scan.
Avg. First contentful paint (FCP): The average Milliseconds that differ from the last scan. This metric marks the time at which the first text or image is painted by measuring how long it takes the browser to render the first piece of DOM content after a user navigates to your page.
Avg. Largest contentful paint (LCP): This metric represents the average time duration between the user initiating the page load and the page rendering its primary content.
Avg. Time to interactive (TTI): The average Milliseconds that differ from the last scan. This metric refers to the amount of time it takes for the page to become fully interactive. Measuring TTI is important as some sites optimize content visibility at the expense of interactivity, which can lead to a frustrating user experience. This is because the site may appear to be fully loaded, but when the user attempts to interact with it, nothing happens.
Avg. Speed Index (SI): This metric shows the average speed at which the content on a page is visibly populated.
Avg. Total Blocking Time (TBT): This is the average sum of all time periods between FCP and Time to Interactive when the task length has exceeded 50ms, expressed in milliseconds.
Avg. Cumulative Layout Shift (CLS): This is the averaged cumulative measurement of the movement of visible elements within the viewport.
Changes Since Previous Crawl: Percentage of changes made since the last scan.
Avg. First contentful paint (FCP): The average Milliseconds that differ from the last scan. This metric marks the time at which the first text or image is painted by measuring how long it takes the browser to render the first piece of DOM content after a user navigates to your page.
Avg. Largest contentful paint (LCP): This metric represents the average time duration between the user initiating the page load and the page rendering its primary content.
Avg. Time to interactive (TTI): The average Milliseconds that differ from the last scan. This metric refers to the amount of time it takes for the page to become fully interactive. Measuring TTI is important as some sites optimize content visibility at the expense of interactivity, which can lead to a frustrating user experience. This is because the site may appear to be fully loaded, but when the user attempts to interact with it, nothing happens.
Avg. Speed Index (SI): This metric shows the average speed at which the content on a page is visibly populated.
Avg. Total Blocking Time (TBT): This is the average sum of all time periods between FCP and Time to Interactive when the task length has exceeded 50ms, expressed in milliseconds.
Avg. Cumulative Layout Shift (CLS): This is the averaged cumulative measurement of the movement of visible elements within the viewport.