> For the complete documentation index, see [llms.txt](https://dev7days.gitbook.io/dev7days/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev7days.gitbook.io/dev7days/aws/elb-and-asg/health-checks.md).

# Health Checks

This feature in ELB enable the load balancer to know if instances it forwards traffic to are avialable to reply requests. ELB will send the request to health endpoint of instance , if the response is 200(OK) then the instance is healthy. Health checks are at the target group level.

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