Utilities

Postmortem Template Generator

Generate a complete blameless postmortem template in Markdown. Pre-filled with timeline, 5 Whys, impact analysis, detection / response metrics, action items, and lessons learned.

Fill in the fields above and click Generate Postmortem.

The generated Markdown will appear here, ready to copy or download as a .md file.

Automate your incident response

Reduce MTTR by 90% with AI-powered root cause analysis. Free to start.

Try Uptimes.ai Free

What a great postmortem actually contains

A postmortem is not the incident channel transcript. It is a deliberate synthesis written after the dust settles, with three jobs: (1) record exactly what happened with timeline and impact, (2) explain why it was possible to happen at all, (3) commit to specific changes that make the next version of this incident either impossible or much faster to recover from.

The template above includes the eight sections that high-functioning SRE teams converge on independently — Summary, Impact, Timeline, Root Cause (with 5 Whys), Detection, Response, What Went Well / Wrong / Lucky, and prioritized Action Items.

The 5 Whys done well

The 5 Whys is the single most underused technique in incident review. Most postmortems stop at the second "why" and call that the root cause. Push past it. If you reach "a person did X," you are not done — the next why is "why was a person able to do X without a safety net?" Real root causes are almost always systemic: missing automation, missing review gates, missing observability, unclear ownership.

Action items that actually ship

Every action item gets an owner (a person, not a team), a priority, and a due date. Track them in your issue tracker linked from the postmortem, and review them at the start of every team retro until they are closed or formally deferred. Postmortems where 80%+ of action items ship on time indicate a healthy reliability culture; below 50% indicates a process that has stopped paying for itself.

Cutting incident time at the source

Postmortems are the after-action layer. The bigger lever is shrinking the incident itself. Uptimes.ai is an AI SRE agent that takes alerts from Datadog, Prometheus, or PagerDuty and produces a root cause report in under three minutes — the same kind of analysis that takes a human responder 30+ minutes. That alone often reduces SEV1 duration by 80% and makes the eventual postmortem dramatically easier to write.

Frequently Asked Questions

What is a blameless postmortem?+
A blameless postmortem focuses on systems and processes that allowed an incident to happen, not on the individual who pushed the button. The premise is that engineers act in good faith with the information available to them, so "person X did Y" is never the root cause — the root cause is that the system permitted a single action to take production down. Blameless postmortems produce dramatically better learning and far more honest reporting.
How long should a postmortem take to write?+
For a SEV1+, plan for 4-8 hours of writing spread over a few days, plus a 30-60 minute review meeting. The first draft is usually written within 48 hours while memories are fresh; the final document is published within 1-2 weeks. Templates like this one cut writing time roughly in half because the structure is already solved.
Who should be in the postmortem meeting?+
The incident responders (on-call, anyone paged in), an SME for the affected service, the manager(s) of the involved teams, and a facilitator who is not directly involved. Keep it under 8 people. The goal is shared understanding and prioritized action items, not a witch hunt.
What makes action items actually get done?+
Three properties: a named owner (not a team), a priority (P0/P1/P2), and a due date. Items without all three quietly disappear. Track them in your normal issue tracker linked from the postmortem, and review the list at the start of every retro until each item is closed or formally deferred.
Should we publish postmortems publicly?+
For customer-impacting incidents, yes — a public postmortem builds trust and is now table stakes for serious B2B SaaS. The internal version can be more detailed; the public version focuses on impact, what happened, and what you are doing about it. Avoid blaming third parties even when warranted; it reads as deflection.

Related Tools

MTTR Calculator

Calculate Mean Time to Recovery from your incident data.

Incident Cost Calculator

Calculate the true cost of downtime for your organization.

Error Budget Calculator

Track SLO burn from incidents in real time.