Overview
This custom tag captures all details regarding how the page loaded. This includes:
DNS timing
Domain connection timing information
Request and response timing information
DOM content load
Page load timing information
Redirection timing information (if there is a redirect)
Under Variable Summary report in ObservePoint data, select the Page Performance account to see the relevant variables.
Connect-How-long: Shows the time in milliseconds to connect to the URL.
Connect-Start: Shows the time in milliseconds to start the connect.
Connect-Total: Shows the total time in milliseconds to start and connect to the URL.
DNS-How-long: Shows the time in milliseconds for the DNS to connect.
DNS-Start: Shows the time in milliseconds for the DNS to start to connect.
DNS-Total: Shows the total time in milliseconds for the DNS to start and connect to the URL.
DOM_Content-Loaded-How-long: Shows the time in milliseconds for the DOM content to load.
DOM_Content-Loaded-Start: Shows the time in milliseconds for the DOM content to start loading.
DOM_Content-Loaded-Total: Shows the total time in milliseconds for the DOM to start and finish loading.
DOM_Interactive-How-long: Shows the time in milliseconds for the page subresources to load.
DOM_Interactive-Total: Shows the time in milliseconds for the page subresources to start and finish loading.
DOM_Loading-Start: Shows the time in milliseconds for the page subresources to start loading.
Load_Event-How-long: Shows the time in milliseconds for an event to load on a URL.
Load_Event-Start: Shows the time in milliseconds for an event to start loading.
Load_Event-Total: Shows the total time in milliseconds for an event to start and finish loading.
Note: This is the metrics ObservePoint uses to calculate page load time.
Redirect-How-Long: Shows the time in milliseconds for the URL to redirect.
Redirect-Start: Shows the time in milliseconds for the URL to begin redirecting.
Redirect-Total: Shows the total time in milliseconds for the URL to start and finish redirecting.
Request-Start: Shows the time in milliseconds for a network request to start.
Response-How-long: Shows the time in milliseconds for a network to respond.
Response-Total: Shows the total time in milliseconds for a network to start and finish responding.
To capture these details in an audit or Journey, paste the snippet below into an Execute Action:
function opReqGetAsync(paramObject, acct, callback) {
var baseURL = "https://opreq.observepoint.com/?acct=" + acct;
var opReq = new XMLHttpRequest();
opReq.onreadystatechange = function() {
if (opReq.readyState == 4 && opReq.status == 200) {
callback(opReq.responseText);
}
}
opReq.open("POST", baseURL, true);
opReq.send(JSON.stringify(paramObject));
}
var object = {
'DNS-Start': performance.timing.domainLookupStart - performance.timing.domainLookupStart,
'DNS-How-long': performance.timing.domainLookupEnd - performance.timing.domainLookupStart,
'DNS-Total': performance.timing.domainLookupEnd - performance.timing.domainLookupStart,
'Connect-Start': performance.timing.connectStart - performance.timing.domainLookupStart,
'Connect-How-long': performance.timing.connectEnd - performance.timing.connectStart,
'Connect-Total': performance.timing.connectEnd - performance.timing.domainLookupStart,
'Request-Start': performance.timing.requestStart - performance.timing.domainLookupStart,
'Response-How-long': performance.timing.responseEnd - performance.timing.requestStart,
'Response-Total': performance.timing.responseEnd - performance.timing.domainLookupStart,
'DOM_Loading-Start': performance.timing.domLoading - performance.timing.domainLookupStart,
'DOM_Interactive-How-long': performance.timing.domInteractive - performance.timing.domLoading,
'DOM_Interactive-Total': performance.timing.domInteractive - performance.timing.domainLookupStart,
'DOM_Content-Loaded-Start': performance.timing.domContentLoadedEventStart - performance.timing.domainLookupStart,
'DOM_Content-Loaded-How-long': performance.timing.domContentLoadedEventEnd - performance.timing.domContentLoadedEventStart,
'DOM_Content-Loaded-Total': performance.timing.domContentLoadedEventEnd - performance.timing.domainLookupStart,
'Load_Event-Start': performance.timing.loadEventStart - performance.timing.domainLookupStart,
'Load_Event-How-long': performance.timing.loadEventEnd - performance.timing.loadEventStart,
'Load_Event-Total': performance.timing.loadEventEnd - performance.timing.domainLookupStart
}
if (performance.timing.redirectStart && performance.timing.redirectEnd) {
object['Redirect-Start'] = performance.timing.redirectStart;
object['Redirect-Total'] = performance.timing.redirectEnd;
object['Redirect-How-Long'] = performance.timing.redirectEnd - performance.timing.redirectStart;
} else {
var text = "There is no redirect, or one of the redirects is not of the same origin";
object['Redirect-Start'] = text;
object['Redirect-Total'] = text;
object['Redirect-How-Long'] = text;
}
if (performance.timing.loadEventStart && performance.timing.loadEventEnd) {
opReqGetAsync(object, "Page Performance");