Operations | Monitoring | ITSM | DevOps | Cloud

Mobile applications offer increased flexibility to both users and developers. Users can access content on a wide range of devices, operating systems, and network types, while developers can leverage touch screens and orientation-based layouts to create more responsive features. However, all of these factors create new testing challenges. To ensure a good user experience (UX), developers have to test their apps across many device models and platforms, which can become costly and time-consuming.

In the high-stakes world of web performance, every millisecond counts. A single second of delay can result in a 7% reduction in conversions, while 10% of users will abandon a site for every additional second it takes to load . For organizations operating at global scale, Content Delivery Networks (CDNs) have become indispensable infrastructure for delivering fast, reliable user experiences.

Platform teams are struggling with observability noise, bloated storage costs, and lack of clarity during incidents. Most teams capture everything all the time, leading to expensive, overwhelming, and often unnecessary data volumes. In Telemetry for Modern Apps, Mezmo teamed up with Checkly to demonstrate how synthetic monitoring triggers and responsive telemetry pipelines can help reduce costs while maintaining the context needed during incidents.

SLOs are key for improving user satisfaction, prioritizing engineering projects, and measuring overall performance. Given the important role that SLOs play in determining organizational benchmarks, teams need to ensure that SLO metrics—also called service level indicators (SLIs)—are reported accurately and maintained consistently within an acceptable range.

The more organizations depend on collaboration solutions like Microsoft Teams for productivity, the more IT departments are expected to ensure a seamless experience every time. That demands more than just rapid troubleshooting when issues occur: it requires IT teams to get ahead of problems and keep them from affecting users in the first place. For that, synthetic testing is a must.

For modern engineering and DevOps teams, user experience isn’t a post-deployment concern, it’s a critical operational metric. Monitoring how real users interact with your application is no longer optional, especially in high-traffic, dynamic, or global environments. This is where real user monitoring (RUM) proves indispensable. But RUM isn’t the only approach.