5) If you want to monitor the status of deploys/builds - I love integrating CI/CD systems with Slack - very helpful.
Hope that helps - I've spent a lot of my career monitoring things, and have this mantra that I need to know about services down before customers call to tell me same.
There are plenty of options and plenty free pricing tiers. I use multiple ones for redundancy and comparison. One of them ended up producing false alerts, surprisingly.
1) pagerduty.com or uptimerobot.com for remote monitoring to make sure you site(s) are up (and get alerts when they're not).
2) Datadog or New Relic if you want deeper monitoring (application performance, database performance, diagnostics/debugging.
3) Rollbar.com (site doesn't seem to respond) for site performance/errors.
4) Roll your own with Prometheus (https://prometheus.io/, or Nagios (https://www.nagios.org/)/IcingA. Or... strangely - I still use MRTG for a few perf monitoring things: https://oss.oetiker.ch/mrtg/
5) If you want to monitor the status of deploys/builds - I love integrating CI/CD systems with Slack - very helpful.
Hope that helps - I've spent a lot of my career monitoring things, and have this mantra that I need to know about services down before customers call to tell me same.
(a lot of these have free tiers)