After several performance remediations, a city digital-services team still only watches server CPU and 5xx rates. Citizens report intermittent slow page loads that operations never sees. Which monitoring toolset change best sustains the performance improvements?
Select an answer to reveal the explanation.
Short Explanation
Server green lights do not equal happy citizens staring at a spinner on their phones. RUM and synthetics watch the actual journey—like mystery shoppers for the website—so UX regressions show up before the mayor’s office hears about them.
Full Explanation
Sustaining performance improvements requires client-side and synthetic observability in addition to infrastructure metrics. CloudWatch RUM captures real-user experience; synthetics canaries provide continuous scripted checks of critical civic paths. Manual weekly checks are sparse, disabling logs reduces evidence, and EC2 status checks do not measure browser render or end-to-end UX.