diff --git a/cache_domains.json b/cache_domains.json
index c9b6709..c62518d 100644
--- a/cache_domains.json
+++ b/cache_domains.json
@@ -121,6 +121,11 @@
 			"name": "xboxlive",
 			"description": "CDN for xboxlive",
 			"domain_files": ["xboxlive.txt"]
+		},
+		{
+			"name": "Esper",
+			"description": "CDN for Esper device provisioning",
+			"domain_files": ["esper.txt"]
 		}
 	]
 }
diff --git a/esper.txt b/esper.txt
new file mode 100644
index 0000000..b9c6408
--- /dev/null
+++ b/esper.txt
@@ -0,0 +1 @@
+develop-streamer.esper.io