Do we have a way where I can capture webpage variables upon synthetic script execution?
I have been getting frequent alerts but unable to identify which webserver node is failing. I'm thinking of capturing the webpage variable so we can directly isolate it from the web cluster. Do you think it's possible?
No, for HTTP Monitors you can't currently add information there. If it's a monitor being run on a private location, you can see messages in the vuc-http-custom.log. Otherwise for a public monitor you could fail the test as you can see the failure message in the Events section on the HTTP Monitor details page.
Otherwise, you could use the events API to send an event to the tenant for this monitor