diff --git a/README.md b/README.md
index ec74319de..d06c55063 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,11 @@
 archives.json contains a list of 4chan archives typically used by third-party browser extensions.
+
+The file can be downloaded via the following URL:
+```
+https://4chan-x.just-believe.in/json/archives.json
+```
+
+CORS is allowed from the following origin:
+- http(s)://4chan.org (and subdomains)
+- http(s)://4cdn.org (and subdomains)
+- chrome-extension://*