lots of progress

app/Models/Site.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+class Site extends Model
+{
+    protected $fillable = [
+        'user_id',
+        'url',
+        'name',
+        'monitoring_enabled',
+    ];
+
+    protected $casts = [
+        'monitoring_enabled' => 'boolean',
+    ];
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function uptimeChecks(): HasMany
+    {
+        return $this->hasMany(UptimeCheck::class);
+    }
+
+    public function sslCertificates(): HasMany
+    {
+        return $this->hasMany(SslCertificate::class);
+    }
+
+    public function brokenLinks(): HasMany
+    {
+        return $this->hasMany(BrokenLink::class);
+    }
+}