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AlertSite tracks the page load time and network activities for all monitor steps, helping you analyze your website performance. You can access the page loading timeline and detailed timing data from the Monitor Runs dashboard:
The header provides high-level information about the page that was loaded.
|Monitor||The monitor name.|
|Step||The step name (for multi-step monitors).|
|Location||The monitoring location that performed the test.|
|Date/Time||The date and time of the test. All timestamps use the time zone specified in your AlertSite settings in > Account > AlertSite Preferences > Timezone.|
|Payload||The amount of data downloaded in order to load the page.|
|Response Time||The base page response time (just the page’s HTML, without images, scripts or other files).|
The dropdown at the top right lets you filter the displayed page objects based on whether they are from your monitored server or from other servers. The filter affects all views – Summary, Waterfall, and Table.
All Domains – Show all resources.
In-Domain – Show only objects from the same domain as the monitored page.
Out-of-domain – Show only third-party content like analytics scripts, social widgets, CDNs, and so on.
The summary view appears for monitors that use full page monitoring (the base page plus all referenced images, scripts, and other resources). It provides aggregate content statistics for the selected monitor step.
The Summary helps you answer the following questions:
To learn which objects have the most impact on your page load time, check out the Top 5 Slowest Objects and Top 5 Largest Objects charts. Clicking at the top right of a chart will expand it to show a full list of objects. Hover over each object to see its network timings in a tooltip.
Tip: You can copy URLs from the waterfall by clicking next to a URL.
At the bottom, the pie charts % of Objects and % of Payload show the content breakdown by domain and content type. Note that the content types are determined by file extensions, not MIME types.
The waterfall chart visualizes the page loading timeline and all network activities, from the moment when an HTTP request was initiated until the moment the last byte of the response was received.
The response time is broken down into categories, showing how much time is spent doing the following:
Vertical lines on the chart indicate page rendering events for DéjàClick and Selenium monitors:
DOMContentLoadedevent, fired when the browser has downloaded the page’s HTML and finished constructing the Document Object Model (DOM).
onloadevent, fired when the page and all referenced resources (images, scripts, and so on) have been fully loaded into the DOM.
For more information about these metrics, see Web Page Load Time.
The table view lists all resource URLs and the response time breakdown into individual network timings. The table is sortable so you can sort the URLs by individual network timings by HTTP status or alphabetically by URLs. Use the View dropdown at the top right to filter the content by in-domain or out-of-domain.