Tools whose documentation names canary and progressive delivery checks
7 tools in the catalogue have a documentation page describing canary and progressive delivery checks (a small share of traffic runs the new version with automated metric comparison). Licences: open-source 6, freemium 1.
Tools, alphabetical
| Tool | Licence | Hosting | Documentation page |
|---|---|---|---|
| Argo Rollouts | open-source | self-hosted | source verified 2026-10-21 |
| Flagger | open-source | self-hosted | source verified 2026-10-21 |
| GrowthBook | open-source | self-hosted, cloud | source verified 2026-10-21 |
| Kayenta | open-source | self-hosted | source verified 2026-10-21 |
| LaunchDarkly | freemium | cloud | source verified 2026-10-21 |
| Spinnaker | open-source | self-hosted | source verified 2026-10-21 |
| Unleash | open-source | self-hosted, cloud | source verified 2026-10-21 |
About the test class
Canary and progressive delivery checks: catches regressions visible in traffic metrics, memory growth, error rate rise; cannot catch faults in traffic the canary never receives, batch jobs, scheduled tasks.
Questions
What is a Canary and progressive delivery checks tool?
A tool whose own documentation describes canary and progressive delivery checks: a small share of traffic runs the new version with automated metric comparison.
What tools are used for Canary and progressive delivery checks?
Argo Rollouts, Flagger, GrowthBook, Kayenta, LaunchDarkly, Spinnaker and Unleash, listed alphabetically from their own documentation.
Which Canary and progressive delivery checks tools are open source?
6 tools are recorded as open source: Argo Rollouts, Flagger, GrowthBook, Kayenta, Spinnaker and Unleash.
What is the difference between synthetic monitoring and end-to-end testing?
Synthetic monitoring runs scripted checks against production on a schedule (post-deploy); end-to-end tests run user flows against a deployed environment (pre-deploy, post-deploy). Synthetic monitoring cannot catch faults behind authentication the script does not reach.
How does a tool get into the catalogue?
A tool enters the catalogue when its own documentation names at least one of the 12 test classes, a pricing page or licence file exists, it has a dated release within 18 months, and every listed fact has a source URL with a verification date.
Why is a tool missing from the catalogue?
A tool is withheld when a gate fails: no documentation page names a test class, no pricing page or licence file, or no dated release within 18 months. 14 tool routes are withheld.