What an AWS Well-Architected Review Actually Finds

An AWS Well-Architected Review sounds like a formality, but a good one is a structured way to find the risks and costs hiding in your architecture before they find you. AWS built the framework around six pillars, and a review walks your workload through each one with pointed questions. Here is what a review actually surfaces, pillar by pillar.

Operational Excellence

The review asks how you run and observe the system. It commonly finds:

• Manual deployment steps that should be automated.
• Gaps in monitoring, where failures are noticed by customers before dashboards.
• Runbooks that are missing or out of date.
• No practiced incident response process.

Security

Usually the pillar with the most findings. Typical gaps:

• Over-permissive IAM roles and lingering long-lived access keys.
• Data not encrypted at rest, or TLS not enforced everywhere.
• CloudTrail or GuardDuty not enabled across all accounts.
• Secrets stored in code or environment files instead of a secrets manager.

Reliability

The review pressure-tests what happens when things break:

• Single-AZ deployments with no failover.
• Backups that exist but have never been restore-tested.
• No autoscaling, so traffic spikes cause outages.
• Undefined recovery objectives (RTO and RPO) for critical data.

Performance Efficiency

Here it looks at whether you are using the right resources:

• Oversized or undersized instances and databases.
• Missing caching or a CDN in front of heavy read traffic.
• Compute choices that no longer fit the workload as it evolved.

Cost Optimization

Often the pillar that pays for the whole exercise:

• On-demand pricing for steady baseline workloads that should be on Savings Plans.
• Idle and orphaned resources still on the bill.
• No cost visibility by team or service.
• Over-provisioning driven by guesswork rather than real usage.

Sustainability

The newest pillar looks at the efficiency of what you run: right-sizing, shutting down idle capacity, and choosing efficient regions and instance types. Most of these overlap with cost savings.

What you walk away with

A review is not just a list of problems. It produces a prioritized remediation plan, separating the quick wins from the larger projects, so you can fix the highest-risk items first. Because AWS backs the Well-Architected program, partners can often bring funded credits to the remediation work, which offsets part of the effort.

The value is in the specifics. Every team we review is confident their setup is fine until the questions get concrete, and then the same patterns appear: an unencrypted volume here, a single point of failure there, a five-figure annual cost that a Savings Plan erases.

We run Well-Architected Reviews as an AWS Advanced Tier Partner and stay to help you act on the findings. If you want to know what your architecture is really carrying, book a free audit, or read more about what a Well-Architected Review is and our cloud infrastructure and FinOps work.