> For the complete documentation index, see [llms.txt](https://ysfang82.gitbook.io/development-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ysfang82.gitbook.io/development-notes/aws-notes/service/management-tools/trusted-advisor.md).

# Trusted Advisor

**Introduction**

* Out-of-box high level AWS account assessment
* Provides recommendations:
  * Cost Optimization
  * Performance
  * Security
  * Fault Tolerance
  * Service Limits
* Can enable weekly email notification from the console
* 7 Core Checks and recommendations for Basic / Developer support plans
* Full set of checks are available for Business / Enterprise support plans
  * Ability to set CloudWatch alarms when reaching limits
  * Programmatic Access to AWS Support APIs 

**Feature**

* Can check if an S3 bucket is made public
  * But cannot check for a S3 object is public inside of the bucket
  * Use CloudWatch Event / S3 Events instead to trigger Lambda to verify the object.
* Service Limits
  * Limits can only be monitored in Trusted Advisor (cannot be changed)
  * If want to change the limit, need to manually create AWS Support Center case.