diff --git a/mwmbl/url_queue.py b/mwmbl/url_queue.py
index 70528fd..3facf86 100644
--- a/mwmbl/url_queue.py
+++ b/mwmbl/url_queue.py
@@ -46,10 +46,11 @@ class URLQueue:
 
     def initialize(self):
         logger.info(f"Initializing URL queue")
+        blacklist_domains = get_blacklist_domains()
         with Database() as db:
             url_db = URLDatabase(db.connection)
             found_urls = url_db.get_urls(URLStatus.NEW, INITIALIZE_URLS)
-            self._process_found_urls(found_urls)
+            self._process_found_urls(found_urls, blacklist_domains)
         logger.info(f"Initialized URL queue with {len(found_urls)} urls, current queue size: {self.num_queued_batches}")
 
     def update(self):
diff --git a/test/test_blacklist.py b/test/test_blacklist.py
new file mode 100644
index 0000000..b9f376a
--- /dev/null
+++ b/test/test_blacklist.py
@@ -0,0 +1,22 @@
+from mwmbl.indexer.blacklist import is_domain_blacklisted
+
+
+def test_blacklist_excludes_bad_pattern():
+    bad_domains = [
+        "brofqpxj.uelinc.com",
+        "gwaspsag.enflightmultisport.com",
+        "fmcqgzvk.onlinejobs2day.com",
+        "btmjmhyj.universityslandown.com",
+        "djqfctsq.ropman.com",
+    ]
+
+    for domain in bad_domains:
+        assert is_domain_blacklisted(domain, set())
+
+
+def test_blacklist_allows_top_domains():
+    assert not is_domain_blacklisted("teamblog.supportbee.com", set())
+
+
+def test_blacklist_allows_other_domains():
+    assert not is_domain_blacklisted("something.com", set())