Last9 named a Gartner Cool Vendor in AI for SRE Observability for 2025! Read more →
Last9

Blog

Stories, guides, and lessons from the world of observability

Top 11 Ruby APM Tools for 2025: A Performance-Driven Selection

Top 11 Ruby APM Tools for 2025: A Performance-Driven Selection

Explore the top Ruby APM tools for 2025 — from open-source to enterprise — to monitor, trace, and optimize your app’s performance.

Anjali Udasi
Anjali Udasi
Top 9 APM Tools for Node.js Performance Monitoring

Top 9 APM Tools for Node.js Performance Monitoring

Compare top APM tools for Node.js — from open-source options to enterprise-grade platforms — and choose the best fit for your stack.

Anjali Udasi
Anjali Udasi
Implement Distributed Tracing with Spring Boot 3

Implement Distributed Tracing with Spring Boot 3

A practical guide to add OpenTelemetry tracing to Spring Boot 3: agent setup, context propagation, messaging, sampling, and exports.

Anjali Udasi
Anjali Udasi
Choosing the Right APM for Go: 11 Tools Worth Your Time

Choosing the Right APM for Go: 11 Tools Worth Your Time

Explore 11 APM tools built for Go—from lightweight open-source options to enterprise-grade platforms that simplify debugging.

Faiz Shaikh
Faiz Shaikh
13 PHP APM Tools Worth Using in 2025

15 PHP APM Tools Worth Using in 2025

Compare 15 PHP APM tools for 2025 — from open-source options to managed platforms — and find what fits your performance needs.

Faiz Shaikh
Faiz Shaikh
How OpenTelemetry Auto-Instrumentation Works

How OpenTelemetry Auto-Instrumentation Works

OpenTelemetry auto-instrumentation uses runtime hooks and agents to collect telemetry without code changes—covering most modern stacks.

Anjali Udasi
Anjali Udasi
How to Scale Prometheus APM for Modern Applications

How to Scale Prometheus APM for Modern Applications

Learn how to scale Prometheus APM for growing systems with practical strategies to keep queries fast and monitoring efficient.

Anjali Udasi
Anjali Udasi
Observability vs. Visibility: What's the Difference?

Observability vs. Visibility: What's the Difference?

Understand observability vs visibility: visibility shows current states, while observability uncovers why systems act the way they do.

Faiz Shaikh
Faiz Shaikh
OTel Naming Best Practices for Spans, Attributes, and Metrics

OTel Updates: Naming Best Practices for Spans, Attributes, and Metrics

Understand how to name spans, attributes, and metrics in OpenTelemetry for consistent, queryable, and reliable observability data.

Anjali Udasi
Anjali Udasi