What tools do you guys use for analyzing the performance in the backend?
New Relic? Blackfire? Dynatrace?
I’ve used New Relic for many apps (and languages) and it does a good job. It can get expensive though if you have a lot of servers.
New Relic is awesome but like he said, and I’m sure you noticed, it’s really expensive and when we had it, you needed to commit to a year subscription.
I think personally if you get a really good setup for live streaming and analyzing your server / application logs, you will end up learning almost as much for a fraction of the price.
I use Google Stackdriver for monitoring, logging, and diagnostics of all our servers and individual websites. It’s really a well thought out setup and your looking at something like $10 a month per resource (server) and a few extra dollars to up your log retention over 5gig a month if you need it. They have error tracing and everything as well, plus completely custom alerting on problems.