> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fly.io/llms.txt
> Use this file to discover all available pages before exploring further.

# fly certs check

Shows detailed certificate information and checks the DNS configuration
for the specified hostname.

## Usage

```
fly certs check <hostname> [flags]
```

## Options

```
  -a, --app string      Application name
  -c, --config string   Path to application configuration file
  -h, --help            help for check
  -j, --json            JSON output
```

## Global Options

```
  -t, --access-token string   Fly API Access Token
      --debug                 Print additional logs and traces
      --verbose               Verbose output
```

## See Also

* [fly certs](/flyctl/cmd/fly_certs)	 - Manage certificates