cannot get property from associative table

I have three tables :

websites :
.id
.user_id

website_checkers:
.id
.website_id
.checker_id

checkers:
.id
.name

what I want is to get the checker name from websites.

I have built my controller this way :

public function getInfos() {
$websites = Website::where('user_id', Auth::user()->id)
            ->with('checkers')
            ->get();
 return response()->json(['websites'=>$websites],200);
}

here is my Website Model :

public function checkers(): HasMany
{
    return $this->hasMany(WebsiteChecker::class);
}

json response is :

websites [
		website {
				id: 1
				user_id: 1
				checkers  [
						checker {
						id: 1
						website_id: 1
						checker_id: 1
						}
				]
		}
]

I want to get the checker name based on the checker_id, like this :

websites [
		website {
				id: 1
				user_id: 1
				checkers  [
						checker {
						id: 1
						website_id: 1
						checker_id: 1
						name: checker
						}
				]
		}
]

Any help will be very appreciated !