post checkboxes value

I am building a form to add one or multiple checkers to a website, using Laravel, Inertia vue.js. I have a table with three columns : id, website_id, checker_id.

here is my form :

<form @submit.prevent="store">
	<div v-for="checker in checkers" :key="checker.id">
		<input type="checkbox" :id="checker.id" :value="checker.id" v-model="checked">
		<label :for="checker.id">{{checker.name}}</label>
	</div>
	<button type="submit">Save</button>
</form>

data() {
    return {
        checked: []
    }
}

store() {
    axios.post('/submit', this.checked)
}

console.log(this.checked) returns this :

Proxy { : (1) […], : {…} } ​ : Array [ id, id ]

0: id 1: id length: 2

for the moment my controller looks like this :

public function store()
    {

        WebsiteCheckers::create([
            'checker_id' => request('checked'),
            'website_id' => ?
        ]);
    }

I have absolutly no idea on how to persist the data in DB neither how to make my controller. any help will be much appreciated !