From Telemetry to Traffic
Compare eBPF, sidecars, telemetry agents, OpenTelemetry, APM, and proxies through an evolving ladder of production visibility.
Read the guideObservability guides
API observability: find the problem and prove the fix
Metrics, logs, and traces tell you where to look. API traffic shows the request, response, and dependency behavior that caused the failure. These guides connect the two.
Start here
How the layers of production visibility fit together
Choose what you need to do
Understand the gap
Learn what metrics, logs, traces, and traffic each reveal about a production problem.
Diagnose a live problem
Follow practical workflows for latency, retries, and failures across service boundaries.
Turn findings into tests
Carry production evidence into repeatable tests that run before the next release.
All observability articles
Part 3: Designing a Reliable API Traffic Replay System
Design a traffic replay system that catches wrong responses. Connect recordings, state isolation, response checks, and CI gates with a proxymock example.
How to Do Full-Text Search Across All Application Traffic with Speedscale
This how-to video shows how to use Speedscale's full-text traffic search to instantly find where a specific piece of data appears as it flows through your.
Replay Recorded API Sessions as Datadog Synthetics Tests
Export a recorded API session to Datadog Synthetics with proxymock. Review step limits, variable chaining, credentials, and assertions before publishing.
Observe Opaque Services With OpenTelemetry eBPF + proxymock
Discover endpoints, RED metrics, and traces in an opaque Kubernetes service with OpenTelemetry eBPF Instrumentation, then replay traffic with proxymock.
The Kubeshark Workflow That Doesn't Stop at the Dashboard
A Kubeshark alternative that goes beyond observability. Stream live cluster traffic into proxymock, then replay or mock it locally from your laptop.
Reproduce A Rare Retry Path With Loki + proxymock
Find the rare payload that sends a service down a retry path, correlate it to the recorded response, and prove the fix with proxymock replay.
Capture Encrypted Microservice Traffic with Speedscale eBPF
Inspect encrypted microservice traffic with Speedscale’s eBPF collector. Check TLS support, node permissions, and Java-agent rollout requirements first.
Observability Never Really Shifted Left
We shifted testing, security, and CI/CD left. Observability stayed in production. With AI writing code faster, validation is the bottleneck.
eBPF: Correlating rustls Plaintext to TCP Connections Without a File Descriptor
Follow an eBPF debugging trail through rustls, Tokio inlining, and an empty map to learn how TLS plaintext gets matched to the right TCP connection.
Go from alert to reproducible test
Capture the API traffic behind a production issue, replay it safely, and verify the fix against the same behavior.