diff --git a/restscrape/migrations/0006_browser_completedscrapingresponse_pagerequesttask_pendingscrapingresponse_scraperequest_scrapingresp.py b/restscrape/migrations/0006_browser_completedscrapingresponse_pagerequesttask_pendingscrapingresponse_scraperequest_scrapingresp.py
new file mode 100644
index 0000000..a079169
--- /dev/null
+++ b/restscrape/migrations/0006_browser_completedscrapingresponse_pagerequesttask_pendingscrapingresponse_scraperequest_scrapingresp.py
@@ -0,0 +1,68 @@
+# Generated by Django 2.2.1 on 2019-06-18 02:52
+
+import django.contrib.postgres.fields.hstore
+import django.contrib.postgres.fields.jsonb
+from django.db import migrations, models
+import django.db.models.deletion
+import uuid
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('restscrape', '0005_auto_20190531_0136'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Browser',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('address', models.CharField(max_length=255)),
+                ('proxy', models.URLField(max_length=255)),
+                ('use_adblock', models.BooleanField()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='PageRequestTask',
+            fields=[
+                ('task_id', models.UUIDField(primary_key=True, serialize=False)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='ScrapeRequest',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('submit_time', models.DateTimeField(editable=False)),
+                ('blocking', models.BooleanField()),
+                ('url', models.URLField()),
+                ('use_adblock', models.BooleanField()),
+                ('wait_for', models.IntegerField()),
+                ('xpath_labels', django.contrib.postgres.fields.hstore.HStoreField()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='ScrapingResponse',
+            fields=[
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='CompletedScrapingResponse',
+            fields=[
+                ('scrapingresponse_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='restscrape.ScrapingResponse')),
+                ('xpath_labels', django.contrib.postgres.fields.jsonb.JSONField()),
+                ('completion_time', models.DateTimeField()),
+            ],
+            bases=('restscrape.scrapingresponse',),
+        ),
+        migrations.CreateModel(
+            name='PendingScrapingResponse',
+            fields=[
+                ('scrapingresponse_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='restscrape.ScrapingResponse')),
+                ('request', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='restscrape.ScrapeRequest')),
+                ('task', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='restscrape.PageRequestTask')),
+            ],
+            bases=('restscrape.scrapingresponse',),
+        ),
+    ]
diff --git a/restscrape/migrations/0007_auto_20190618_1014.py b/restscrape/migrations/0007_auto_20190618_1014.py
new file mode 100644
index 0000000..4acdfa3
--- /dev/null
+++ b/restscrape/migrations/0007_auto_20190618_1014.py
@@ -0,0 +1,35 @@
+# Generated by Django 2.2.1 on 2019-06-18 15:14
+
+from django.db import migrations, models
+import django.db.models.deletion
+import uuid
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('restscrape', '0006_browser_completedscrapingresponse_pagerequesttask_pendingscrapingresponse_scraperequest_scrapingresp'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='pagerequesttask',
+            name='task_id',
+            field=models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False),
+        ),
+        migrations.AlterField(
+            model_name='pendingscrapingresponse',
+            name='task',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='restscrape.PageRequestTask'),
+        ),
+        migrations.AlterField(
+            model_name='scraperequest',
+            name='submit_time',
+            field=models.DateTimeField(auto_now=True),
+        ),
+        migrations.AlterField(
+            model_name='scraperequest',
+            name='wait_for',
+            field=models.IntegerField(default=0),
+        ),
+    ]
diff --git a/restscrape/models.py b/restscrape/models.py
index 923a890..fea3e82 100644
--- a/restscrape/models.py
+++ b/restscrape/models.py
@@ -47,8 +47,8 @@ class Page(models.Model):
 
 
 class Browser(models.Model):
-    address = models.CharField(max_length=None)
-    proxy = models.URLField(max_length=None)
+    address = models.CharField(max_length=255)
+    proxy = models.URLField(max_length=255)
     use_adblock = models.BooleanField()
 
     def connect(self):
@@ -90,8 +90,10 @@ def cleanup_browsers(max_browsers=5):
         else:
             if len(browser.connect().tabs) == 1:
                 browser.delete()
+
+
 class PageRequestTask(models.Model):
-    task_id = models.UUIDField(primary_key=True)
+    task_id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
     _result = None
 
     @property
@@ -111,13 +113,14 @@ class PageRequestTask(models.Model):
 
 class ScrapeRequest(models.Model):
     # internal
-    submit_time = models.DateTimeField(editable=False)
+    submit_time = models.DateTimeField(auto_now=True)
     # parameters
     blocking = models.BooleanField()
     url = models.URLField()
-    use_adblock = models.BooleanField()
-    wait_for = models.IntegerField()
+    use_adblock = models.BooleanField(default=True)
+    wait_for = models.IntegerField(default=0)
     xpath_labels = extended_fields.HStoreField()
+    proxy = models.URLField()
 
     def submit(self):
         self.save()