diff --git a/docker/crawl.php b/docker/crawl.php
index d1248c8..b76674a 100644
--- a/docker/crawl.php
+++ b/docker/crawl.php
@@ -3,7 +3,9 @@ require_once(__DIR__.'/vendor/autoload.php');
 
 use \JHodges\Sitemap\Crawler;
 
-if(!$url=getenv('CRAWL_URL')){
+if($url=getenv('CRAWL_URL')){
+    $urls=array_filter(array_map('trim',explode(',',$url)));
+}else{
 	die("No env: CRAWL_URL\n");
 }
 
@@ -14,7 +16,9 @@ if($code=getenv('CRAWL_CODE')){
 }
 
 $crawler=new Crawler();
-$crawler->crawl($url);
+foreach($urls as $url){
+    $crawler->crawl($url);
+}
 
 $summary=[];
 $details='';