diff --git a/src/Jackett.Common/Definitions/u3c3.yml b/src/Jackett.Common/Definitions/u3c3.yml
index 62f0f7209..c7a60d02a 100644
--- a/src/Jackett.Common/Definitions/u3c3.yml
+++ b/src/Jackett.Common/Definitions/u3c3.yml
@@ -7,15 +7,18 @@ type: public
 encoding: UTF-8
 links:
   - https://u3c3.com/
-  - https://u3c3.in/
   - https://a.u3c3.life/
   - https://u001.25img.com/
   - https://u002.25img.com/
   - https://u003.25img.com/
+  - https://m0m0m0m.mnmnmnmnmn.com/ # numbers in subdomain can be m2m9m9m or less
+legacylinks:
+  - https://u3c3.in/
 
 caps:
   categorymappings:
     - {id: 國產原创, cat: XXX, desc: 國產原创}
+    - {id: U3C3, cat: XXX, desc: U3C3}
     - {id: Video, cat: XXX, desc: Video}
     - {id: Photo, cat: XXX/ImageSet, desc: Photo}
     - {id: Book, cat: Books, desc: Book}