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It's very easy to integrate and tracks every user events, you get real-time updates. A must-have tool on your site to track down bugs and make the user experience better.
Pro AJAX errors
Helps you know when the API call is failing so that you can quicky get to it.
Pro Event telemetry to reproduce error
Records action that led to the error which makes it easy to reproduce the error faster. Events recorded are console logs, network calls, route changes and user events, like clicks and inputs.
Pro Network performance monitoring
AJAX monitoring shows which calls are running slow and how many calls the app is making to the backend. Also, provides data transfer reports and throughput reports.
Allows integrating various notification channels like Slack, Hipchat & Email. Notifies whenever there's a new error or a resolved error appears again.
Pro Page load performance monitoring
Monitors page load performance along with the breakdown like Query stalling, SSL, TCP Handshake etc. It also provides in-depth monitoring, including duration filtering, URL filtering and AJAX calls made from the page.
Pro Drag & drop source map support
It's really easy to debug minify code. Source map support, not just beautifies the code, but also fetches code context.
Pro Daily error reports
Daily reports help understand anomalies that triggers errors. Also, gives top erroneous browsers, URLs etc within the report.
Pro There's a free plan
ErrLytics provides a free plan which helps to monitor small-scale websites, a feature that is mostly absent in other services.