You shipped it.
Find out what
most likely caused itstopped working?
Postflight checks your application after every release. If something breaks, it tells you exactly what happened and gives your team the evidence needed to fix it.
Good evening, Tommy
Release overview
Releases checked
248
last 30 days
Healthy
241
97.2%
Caught
7
before customers
Avg check
32s
per release
Recent releases
last 24ha72e8c1Fix checkout total rounding4/42 minb83f9d2Update payment provider3/41 hrc94a0e3Add order confirmation email4/45 hrd05b1f4Bump dependencies4/49 hrProjects
Faster shipping needs faster certainty.
AI can now help teams build and release software much faster. That is powerful. It also means more changes, made by more people and agents, reaching customers more often. The challenge is no longer just making the change. It is knowing whether the change worked. Postflight gives every release a clear answer.
Not just deployed. Verified.
A green deployment message only tells you that the release reached the server. It does not tell you that customers can still sign in. That checkout still works. That an important page still loads. Or that the new feature did not quietly break something else. Postflight checks the application the way a customer experiences it. Because "deployed" and "working" are not the same thing.
v2.9.4Sign-in flow
/auth/login
Checkout completes
/checkout
Dashboard loads
/dashboard
API health
/api/health
How Postflight works
Connect your application
Connect Postflight to the platform where your application is already hosted. No migration. No complicated setup. No need to change how your team ships.
Choose your platform
Release as usual
Whenever a new version goes live, Postflight begins checking it automatically. There is nothing extra to remember.
Deployment triggered
Get a clear answer
Postflight tells you whether the release worked, whether something became worse, or whether a problem needs your attention.
Release v2.9.3
4 checks · 82 s
Release v2.9.4
4 checks · 82 s
Every release gets a clear verdict.
Understand what happened
When something breaks, Postflight connects the failure to the release most likely responsible. You see what stopped working, when it began and where the investigation should start.
Diagnostic report
Send it back to the builder
Postflight prepares the evidence for the person or coding agent responsible for fixing it. No copying fragments between tools. No beginning the investigation from zero.
Context exported
Failure: Checkout step 3 → 504
Scope: 14% of users affected
Cause: deploy at 08:14 (conf. 94%)
Action: investigate payment-svc
Works where you deploy
Connect Postflight to the platform you already use. No migration. No extra agents.
Vercel
Frontend hosting with preview deployments and edge functions.
Render
Backend services, cron jobs, and managed Postgres.
Railway
Infrastructure primitives with instant provisioning.
Koyeb
Serverless deployments with global edge compute.
Vercel
Frontend hosting with preview deployments and edge functions.
Render
Backend services, cron jobs, and managed Postgres.
Railway
Infrastructure primitives with instant provisioning.
Koyeb
Serverless deployments with global edge compute.
Built to help. Not to guess.
Production software is not a place for confident guesses. Postflight shows the evidence behind every diagnosis and keeps important actions visible and controlled. You stay in control at every step.
Deterministic checks · the same run always reports the same verdict