some progress

app/Models/Domain.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Carbon\Carbon;
+
+class Domain extends Model
+{
+    protected $fillable = [
+        'site_id',
+        'domain',
+        'expires_at',
+        'last_checked_at',
+        'is_active',
+    ];
+
+    protected $casts = [
+        'expires_at' => 'datetime',
+        'last_checked_at' => 'datetime',
+        'is_active' => 'boolean',
+    ];
+
+    public function site(): BelongsTo
+    {
+        return $this->belongsTo(Site::class);
+    }
+
+    /**
+     * Check if domain is expiring soon (within 30 days)
+     */
+    public function isExpiringSoon(): bool
+    {
+        if (!$this->expires_at) {
+            return false;
+        }
+
+        return $this->expires_at->lte(Carbon::now()->addDays(30));
+    }
+
+    /**
+     * Check if domain has expired
+     */
+    public function isExpired(): bool
+    {
+        if (!$this->expires_at) {
+            return false;
+        }
+
+        return $this->expires_at->lte(Carbon::now());
+    }
+
+    /**
+     * Get days until expiration
+     */
+    public function daysUntilExpiration(): ?int
+    {
+        if (!$this->expires_at) {
+            return null;
+        }
+
+        return Carbon::now()->diffInDays($this->expires_at, false);
+    }
+}