So I was wondering which is the best synthetics monitor type to check on ttfb’s for multiple sites/customers.
At first I had a look into a
Simple Browser monitor because it already includes a
First Byte attribute.
If you look into the NRQL query then it says:
SELECT average(durationBlocked + durationConnect + durationDNS + durationWait) as 'First Byte' FROM SyntheticRequest WHERE monitorName = 'xxx' AND isNavigationRoot is true TIMESERIES auto
Here I already got several questions.
Do I have to keep the
isNavigationRoot is true for synth browser?
In this forum discussion it was suggested to use the
Does that mean that the
Synthetic Request duration == durationBlocked + durationConnect + durationDNS + durationWait ?
Then I was also wondering if the normal ping monitors are better suited for TTFB checks as they do not emulate a whole browser have less load in general and less impact to the customers site as suggested here forum post
Would I calculate my first byte the same way here?
- average(durationBlocked + durationConnect + durationDNS + durationWait)
Does that apply for
Simple Monitorin the same way?
Also I have set up a test dashboard for the same url to compare the values from the two resource types and it seems that they differ.