Analyzing the distribution of elapsed time and other telemetry metrics
Telemetry data often includes numeric values that change over time. This is roughly the definition of an observability 'metric'. It is difficult to infer »
Introducing Heatmaps
TL;DR: Heatmaps are a great way to visualize timing data over time. The canonical visualization of two dimensional data is the bar chart. The following »
Replace Function
Seq 2025.1 introduces a Replace function that replaces occurrences of a pattern with a replacement. To replace the word March with the word April: select »
System Notifications
TL;DR: Seq 2025.1 supports connecting system notifications to an output app instance to proactively receive notifications. The Seq UI displays notifications when system events »
Faster Percentile
TL;DR: Dashboards, alerts and queries that include percentile calculations will run faster and more efficiently with Seq 2025.1, in exchange for a small reduction »
Persistent logs and traces for .NET Aspire
This post continues on from a previous post, Enhancing .NET Aspire Observability with Seq. Since that post was published, a Seq component has been included in »
Faster searches with property indexes
Now in preview, Seq 2024.3 introduces a new index type on event properties, known as expression indexes. Under the right circumstances, expression indexes reduce search »
Working with Nested Event Properties
Seq 2024.1 introduced a change to the default display of nested event properties. Previous versions of Seq rendered collapsed nested structures that could be expanded »
C# Tracing with Serilog and SerilogTracing
Distributed tracing makes Seq even better for monitoring and troubleshooting the behavior and performance of complex distributed systems. The emerging standard for logging and tracing is »
Enhancing .NET Aspire Observability with Seq
.NET Aspire is a toolkit for development and deployment of microservice applications. It is a local orchestrator with support for deployment to production-grade orchestrators like Azure »