I’m working on a Phoenix/Elixir project and trying to improve both performance and search engine visibility. While helping clients improve web apps for digital marketing in Jalandhar, I noticed that optimizing Elixir code, LiveView rendering, and overall page speed has a direct impact on SEO and user engagement.
How do you identify performance bottlenecks in Elixir apps?
Any libraries or tools you recommend for monitoring and profiling?
Tips for optimizing Phoenix apps so pages load faster and rank better in search engines?
Would love to hear your experiences with production-level apps and practical optimization strategies.
I second what @garrison said regarding telemetry for the Elixir side of things, but Elixir web apps are still web apps, so tracking the end-user experience is most valuable for businesses, as there could be sub-optimal loading patterns in the HTML, CSS, and JavaScript, and all manner of vendor JS chaos occurring on the front-end. For end-to-end performance monitoring, DataDog is pretty great, but it’s… a big tool. There’s also Sentry, but I’ve found that enabling all of Sentry’s client-side bells and whistles can have a detrimental effect on performance. There are dozens of others you can find with some light Googling.
Disclosure/shameless plug: I’m building a real-user-monitoring tool called rumdash.io focused on identifying the most costly bottlenecks affecting your users/business. You should check it out!
