Splunk kicked off its virtual event .conf20 and announced two application performance monitoring acquisitions, Plumbr and Rigor, to build out a new observability portfolio, which also launched today.

The data and security platform vendor didn’t announce a purchase price for either company. They follow three acquisitions last year, including two other application monitoring and observability vendors SignalFX, which Splunk bought for $1.05 billion, and Omintion.

Plumbr, based in Estonia, raised $1.8 million before the acquisition. It developed application performance monitoring (APM) software that provides auto-instrumentation, user experience monitoring, and application performance insights.

“Plumbr expands our APM capabilities and helps us accelerate our vision to provide customers with the most comprehensive observability suite, including best in class APM for all applications, existing and new,” Splunk CTO Tim Tully said. “But we didn’t stop there. We’re also really excited to announce our intent to acquire another company Rigor.”

Rigor, based in Atlanta, is an APM company that provides synthetic monitoring. This essentially mimics an action that a customer would take on an application or website to ensure performance and optimize user experience.

“By bringing Rigor into our Observability Suite, we’re rounding out our capabilities around digital experience monitoring, or DEM, and are now able to offer our customers both RUM [real user monitoring] and synthetics at the same time,” Tully said.

Splunk will integrate both companies’ technologies into its new Observability Suite, which it also announced at its annual user conference today.

The Observability Suite includes Splunk’s home-grown and acquired technologies from SignalFX, Omnition, Plumbr, and Rigor to provide infrastructure monitoring, application performance monitoring, digital experience monitoring, log investigation, and incident response. As part of the portfolio, Splunk announced two new log investigation and digital experience monitoring tools today: Splunk Log Observer and Splunk Real User Monitoring.

“Splunk Log Observer brings the power of Splunk logs to cloud-centric site reliability with the DevOps engineers and developers that are the users of the suite,” Tully said. And with Splunk Real User Monitoring, or RUM, we’re extending our monitoring capabilities to help organizations understand and optimize digital experiences and user journeys of their end customers. We’ve been working on Splunk RUM organically, and with our acquisitions of Plumbr and Rigor, we’ll further supplement our efforts of Splunk Real User Monitoring.”